Optical true time delay pool-based beamforming and limited feedback for reconfigurable intelligent surface-empowered cloud radio access networks

Abstract Introducing reconfigurable intelligent surfaces (RISs) greatly improves the wireless propagation environment. Limited to feedback overheads and computing power, the low-complexity precoding and the cost-effective beamforming implementation are urgently demanded in RIS-empowered millimeter-w...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Huang, Huan [verfasserIn] Wang, Xiaowen Zhang, Chongfu Peng, Jie Yang, Muchuan Fu, Songnian Liu, Deming Qiu, Kun

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	reconfigurable intelligent surface optical true time delay millimeter-wave cloud radio access network limited feedback

Anmerkung:	© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021

Übergeordnetes Werk:	Enthalten in: Science in China - Heidelberg : Springer, 2001, 64(2021), 10 vom: 07. Sept.
Übergeordnetes Werk:	volume:64 ; year:2021 ; number:10 ; day:07 ; month:09

Links:	Volltext

DOI / URN:	10.1007/s11432-020-3253-7

Katalog-ID:	SPR05114803X

Internformat


LEADER	01000caa a22002652 4500
001	SPR05114803X
003	DE-627
005	20230509120554.0
007	cr uuu---uuuuu
008	230508s2021 xx \|\|\|\|\|o 00\| \|\|eng c
024	7		\|a 10.1007/s11432-020-3253-7 \|2 doi
035			\|a (DE-627)SPR05114803X
035			\|a (SPR)s11432-020-3253-7-e
040			\|a DE-627 \|b ger \|c DE-627 \|e rakwb
041			\|a eng
100	1		\|a Huang, Huan \|e verfasserin \|4 aut
245	1	0	\|a Optical true time delay pool-based beamforming and limited feedback for reconfigurable intelligent surface-empowered cloud radio access networks
264		1	\|c 2021
336			\|a Text \|b txt \|2 rdacontent
337			\|a Computermedien \|b c \|2 rdamedia
338			\|a Online-Ressource \|b cr \|2 rdacarrier
500			\|a © Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021
520			\|a Abstract Introducing reconfigurable intelligent surfaces (RISs) greatly improves the wireless propagation environment. Limited to feedback overheads and computing power, the low-complexity precoding and the cost-effective beamforming implementation are urgently demanded in RIS-empowered millimeter-wave cloud radio access networks (mmWave C-RANs). Herein, an optical true time delay pool-based hybrid beam-forming (OTTDP-based HBF) scheme, enabling centralized analog beamforming control, is proposed for RIS-empowered mmWave C-RANs. By using codebook quantization techniques, we develop a non-iterative limited feedback (NI-LF) precoding algorithm for the RIS-empowered mmWave C-RAN using the proposed OTTDP-based HBF. In the NI-LF precoding algorithm, the complex joint optimization problem of hybrid precoding and phase-shifting of RIS is equivalently formulated as a maximum ratio transmission (MRT) problem and a sparse reconstruction problem. For an active antenna unit (AAU) equipped with eight antennas, a designed example of the proposed OTTDP is presented. Furthermore, for a RIS-empowered mmWave C-RAN at 28 GHz, the received signal-to-noise ratio (SNR) curves obtained via different precoding schemes are compared and discussed. Compared with the precoding without RIS, the proposed NI-LF precoding by using different codebooks to quantize the phase-shifting of the RIS respectively achieves 20.56, 19.55, and 18.93 dB performance improvement for the user located near the 49-element RIS. Moreover, performance degradations due to limited feedback are analyzed. The computational complexity and overhead of the proposed NI-LF precoding algorithm are also given and discussed.
650		4	\|a reconfigurable intelligent surface \|7 (dpeaa)DE-He213
650		4	\|a optical true time delay \|7 (dpeaa)DE-He213
650		4	\|a millimeter-wave \|7 (dpeaa)DE-He213
650		4	\|a cloud radio access network \|7 (dpeaa)DE-He213
650		4	\|a limited feedback \|7 (dpeaa)DE-He213
700	1		\|a Wang, Xiaowen \|4 aut
700	1		\|a Zhang, Chongfu \|4 aut
700	1		\|a Peng, Jie \|4 aut
700	1		\|a Yang, Muchuan \|4 aut
700	1		\|a Fu, Songnian \|4 aut
700	1		\|a Liu, Deming \|4 aut
700	1		\|a Qiu, Kun \|4 aut
773	0	8	\|i Enthalten in \|t Science in China \|d Heidelberg : Springer, 2001 \|g 64(2021), 10 vom: 07. Sept. \|w (DE-627)385614764 \|w (DE-600)2142898-0 \|x 1862-2836 \|7 nnns
773	1	8	\|g volume:64 \|g year:2021 \|g number:10 \|g day:07 \|g month:09
856	4	0	\|u https://dx.doi.org/10.1007/s11432-020-3253-7 \|z lizenzpflichtig \|3 Volltext
912			\|a GBV_USEFLAG_A
912			\|a SYSFLAG_A
912			\|a GBV_SPRINGER
912			\|a GBV_ILN_20
912			\|a GBV_ILN_22
912			\|a GBV_ILN_23
912			\|a GBV_ILN_24
912			\|a GBV_ILN_31
912			\|a GBV_ILN_32
912			\|a GBV_ILN_39
912			\|a GBV_ILN_40
912			\|a GBV_ILN_60
912			\|a GBV_ILN_62
912			\|a GBV_ILN_65
912			\|a GBV_ILN_69
912			\|a GBV_ILN_70
912			\|a GBV_ILN_73
912			\|a GBV_ILN_74
912			\|a GBV_ILN_90
912			\|a GBV_ILN_95
912			\|a GBV_ILN_100
912			\|a GBV_ILN_101
912			\|a GBV_ILN_105
912			\|a GBV_ILN_110
912			\|a GBV_ILN_120
912			\|a GBV_ILN_138
912			\|a GBV_ILN_152
912			\|a GBV_ILN_161
912			\|a GBV_ILN_171
912			\|a GBV_ILN_187
912			\|a GBV_ILN_224
912			\|a GBV_ILN_250
912			\|a GBV_ILN_281
912			\|a GBV_ILN_285
912			\|a GBV_ILN_293
912			\|a GBV_ILN_370
912			\|a GBV_ILN_602
912			\|a GBV_ILN_702
951			\|a AR
952			\|d 64 \|j 2021 \|e 10 \|b 07 \|c 09

Indexfelder

author_variant	h h hh x w xw c z cz j p jp m y my s f sf d l dl k q kq
matchkey_str	article:18622836:2021----::piatutmdlyolaebafrignlmtdedakorcniualitlietufc
hierarchy_sort_str	2021
publishDate	2021
allfields	10.1007/s11432-020-3253-7 doi (DE-627)SPR05114803X (SPR)s11432-020-3253-7-e DE-627 ger DE-627 rakwb eng Huang, Huan verfasserin aut Optical true time delay pool-based beamforming and limited feedback for reconfigurable intelligent surface-empowered cloud radio access networks 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract Introducing reconfigurable intelligent surfaces (RISs) greatly improves the wireless propagation environment. Limited to feedback overheads and computing power, the low-complexity precoding and the cost-effective beamforming implementation are urgently demanded in RIS-empowered millimeter-wave cloud radio access networks (mmWave C-RANs). Herein, an optical true time delay pool-based hybrid beam-forming (OTTDP-based HBF) scheme, enabling centralized analog beamforming control, is proposed for RIS-empowered mmWave C-RANs. By using codebook quantization techniques, we develop a non-iterative limited feedback (NI-LF) precoding algorithm for the RIS-empowered mmWave C-RAN using the proposed OTTDP-based HBF. In the NI-LF precoding algorithm, the complex joint optimization problem of hybrid precoding and phase-shifting of RIS is equivalently formulated as a maximum ratio transmission (MRT) problem and a sparse reconstruction problem. For an active antenna unit (AAU) equipped with eight antennas, a designed example of the proposed OTTDP is presented. Furthermore, for a RIS-empowered mmWave C-RAN at 28 GHz, the received signal-to-noise ratio (SNR) curves obtained via different precoding schemes are compared and discussed. Compared with the precoding without RIS, the proposed NI-LF precoding by using different codebooks to quantize the phase-shifting of the RIS respectively achieves 20.56, 19.55, and 18.93 dB performance improvement for the user located near the 49-element RIS. Moreover, performance degradations due to limited feedback are analyzed. The computational complexity and overhead of the proposed NI-LF precoding algorithm are also given and discussed. reconfigurable intelligent surface (dpeaa)DE-He213 optical true time delay (dpeaa)DE-He213 millimeter-wave (dpeaa)DE-He213 cloud radio access network (dpeaa)DE-He213 limited feedback (dpeaa)DE-He213 Wang, Xiaowen aut Zhang, Chongfu aut Peng, Jie aut Yang, Muchuan aut Fu, Songnian aut Liu, Deming aut Qiu, Kun aut Enthalten in Science in China Heidelberg : Springer, 2001 64(2021), 10 vom: 07. Sept. (DE-627)385614764 (DE-600)2142898-0 1862-2836 nnns volume:64 year:2021 number:10 day:07 month:09 https://dx.doi.org/10.1007/s11432-020-3253-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 64 2021 10 07 09
spelling	10.1007/s11432-020-3253-7 doi (DE-627)SPR05114803X (SPR)s11432-020-3253-7-e DE-627 ger DE-627 rakwb eng Huang, Huan verfasserin aut Optical true time delay pool-based beamforming and limited feedback for reconfigurable intelligent surface-empowered cloud radio access networks 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract Introducing reconfigurable intelligent surfaces (RISs) greatly improves the wireless propagation environment. Limited to feedback overheads and computing power, the low-complexity precoding and the cost-effective beamforming implementation are urgently demanded in RIS-empowered millimeter-wave cloud radio access networks (mmWave C-RANs). Herein, an optical true time delay pool-based hybrid beam-forming (OTTDP-based HBF) scheme, enabling centralized analog beamforming control, is proposed for RIS-empowered mmWave C-RANs. By using codebook quantization techniques, we develop a non-iterative limited feedback (NI-LF) precoding algorithm for the RIS-empowered mmWave C-RAN using the proposed OTTDP-based HBF. In the NI-LF precoding algorithm, the complex joint optimization problem of hybrid precoding and phase-shifting of RIS is equivalently formulated as a maximum ratio transmission (MRT) problem and a sparse reconstruction problem. For an active antenna unit (AAU) equipped with eight antennas, a designed example of the proposed OTTDP is presented. Furthermore, for a RIS-empowered mmWave C-RAN at 28 GHz, the received signal-to-noise ratio (SNR) curves obtained via different precoding schemes are compared and discussed. Compared with the precoding without RIS, the proposed NI-LF precoding by using different codebooks to quantize the phase-shifting of the RIS respectively achieves 20.56, 19.55, and 18.93 dB performance improvement for the user located near the 49-element RIS. Moreover, performance degradations due to limited feedback are analyzed. The computational complexity and overhead of the proposed NI-LF precoding algorithm are also given and discussed. reconfigurable intelligent surface (dpeaa)DE-He213 optical true time delay (dpeaa)DE-He213 millimeter-wave (dpeaa)DE-He213 cloud radio access network (dpeaa)DE-He213 limited feedback (dpeaa)DE-He213 Wang, Xiaowen aut Zhang, Chongfu aut Peng, Jie aut Yang, Muchuan aut Fu, Songnian aut Liu, Deming aut Qiu, Kun aut Enthalten in Science in China Heidelberg : Springer, 2001 64(2021), 10 vom: 07. Sept. (DE-627)385614764 (DE-600)2142898-0 1862-2836 nnns volume:64 year:2021 number:10 day:07 month:09 https://dx.doi.org/10.1007/s11432-020-3253-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 64 2021 10 07 09
allfields_unstemmed	10.1007/s11432-020-3253-7 doi (DE-627)SPR05114803X (SPR)s11432-020-3253-7-e DE-627 ger DE-627 rakwb eng Huang, Huan verfasserin aut Optical true time delay pool-based beamforming and limited feedback for reconfigurable intelligent surface-empowered cloud radio access networks 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract Introducing reconfigurable intelligent surfaces (RISs) greatly improves the wireless propagation environment. Limited to feedback overheads and computing power, the low-complexity precoding and the cost-effective beamforming implementation are urgently demanded in RIS-empowered millimeter-wave cloud radio access networks (mmWave C-RANs). Herein, an optical true time delay pool-based hybrid beam-forming (OTTDP-based HBF) scheme, enabling centralized analog beamforming control, is proposed for RIS-empowered mmWave C-RANs. By using codebook quantization techniques, we develop a non-iterative limited feedback (NI-LF) precoding algorithm for the RIS-empowered mmWave C-RAN using the proposed OTTDP-based HBF. In the NI-LF precoding algorithm, the complex joint optimization problem of hybrid precoding and phase-shifting of RIS is equivalently formulated as a maximum ratio transmission (MRT) problem and a sparse reconstruction problem. For an active antenna unit (AAU) equipped with eight antennas, a designed example of the proposed OTTDP is presented. Furthermore, for a RIS-empowered mmWave C-RAN at 28 GHz, the received signal-to-noise ratio (SNR) curves obtained via different precoding schemes are compared and discussed. Compared with the precoding without RIS, the proposed NI-LF precoding by using different codebooks to quantize the phase-shifting of the RIS respectively achieves 20.56, 19.55, and 18.93 dB performance improvement for the user located near the 49-element RIS. Moreover, performance degradations due to limited feedback are analyzed. The computational complexity and overhead of the proposed NI-LF precoding algorithm are also given and discussed. reconfigurable intelligent surface (dpeaa)DE-He213 optical true time delay (dpeaa)DE-He213 millimeter-wave (dpeaa)DE-He213 cloud radio access network (dpeaa)DE-He213 limited feedback (dpeaa)DE-He213 Wang, Xiaowen aut Zhang, Chongfu aut Peng, Jie aut Yang, Muchuan aut Fu, Songnian aut Liu, Deming aut Qiu, Kun aut Enthalten in Science in China Heidelberg : Springer, 2001 64(2021), 10 vom: 07. Sept. (DE-627)385614764 (DE-600)2142898-0 1862-2836 nnns volume:64 year:2021 number:10 day:07 month:09 https://dx.doi.org/10.1007/s11432-020-3253-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 64 2021 10 07 09
allfieldsGer	10.1007/s11432-020-3253-7 doi (DE-627)SPR05114803X (SPR)s11432-020-3253-7-e DE-627 ger DE-627 rakwb eng Huang, Huan verfasserin aut Optical true time delay pool-based beamforming and limited feedback for reconfigurable intelligent surface-empowered cloud radio access networks 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract Introducing reconfigurable intelligent surfaces (RISs) greatly improves the wireless propagation environment. Limited to feedback overheads and computing power, the low-complexity precoding and the cost-effective beamforming implementation are urgently demanded in RIS-empowered millimeter-wave cloud radio access networks (mmWave C-RANs). Herein, an optical true time delay pool-based hybrid beam-forming (OTTDP-based HBF) scheme, enabling centralized analog beamforming control, is proposed for RIS-empowered mmWave C-RANs. By using codebook quantization techniques, we develop a non-iterative limited feedback (NI-LF) precoding algorithm for the RIS-empowered mmWave C-RAN using the proposed OTTDP-based HBF. In the NI-LF precoding algorithm, the complex joint optimization problem of hybrid precoding and phase-shifting of RIS is equivalently formulated as a maximum ratio transmission (MRT) problem and a sparse reconstruction problem. For an active antenna unit (AAU) equipped with eight antennas, a designed example of the proposed OTTDP is presented. Furthermore, for a RIS-empowered mmWave C-RAN at 28 GHz, the received signal-to-noise ratio (SNR) curves obtained via different precoding schemes are compared and discussed. Compared with the precoding without RIS, the proposed NI-LF precoding by using different codebooks to quantize the phase-shifting of the RIS respectively achieves 20.56, 19.55, and 18.93 dB performance improvement for the user located near the 49-element RIS. Moreover, performance degradations due to limited feedback are analyzed. The computational complexity and overhead of the proposed NI-LF precoding algorithm are also given and discussed. reconfigurable intelligent surface (dpeaa)DE-He213 optical true time delay (dpeaa)DE-He213 millimeter-wave (dpeaa)DE-He213 cloud radio access network (dpeaa)DE-He213 limited feedback (dpeaa)DE-He213 Wang, Xiaowen aut Zhang, Chongfu aut Peng, Jie aut Yang, Muchuan aut Fu, Songnian aut Liu, Deming aut Qiu, Kun aut Enthalten in Science in China Heidelberg : Springer, 2001 64(2021), 10 vom: 07. Sept. (DE-627)385614764 (DE-600)2142898-0 1862-2836 nnns volume:64 year:2021 number:10 day:07 month:09 https://dx.doi.org/10.1007/s11432-020-3253-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 64 2021 10 07 09
allfieldsSound	10.1007/s11432-020-3253-7 doi (DE-627)SPR05114803X (SPR)s11432-020-3253-7-e DE-627 ger DE-627 rakwb eng Huang, Huan verfasserin aut Optical true time delay pool-based beamforming and limited feedback for reconfigurable intelligent surface-empowered cloud radio access networks 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract Introducing reconfigurable intelligent surfaces (RISs) greatly improves the wireless propagation environment. Limited to feedback overheads and computing power, the low-complexity precoding and the cost-effective beamforming implementation are urgently demanded in RIS-empowered millimeter-wave cloud radio access networks (mmWave C-RANs). Herein, an optical true time delay pool-based hybrid beam-forming (OTTDP-based HBF) scheme, enabling centralized analog beamforming control, is proposed for RIS-empowered mmWave C-RANs. By using codebook quantization techniques, we develop a non-iterative limited feedback (NI-LF) precoding algorithm for the RIS-empowered mmWave C-RAN using the proposed OTTDP-based HBF. In the NI-LF precoding algorithm, the complex joint optimization problem of hybrid precoding and phase-shifting of RIS is equivalently formulated as a maximum ratio transmission (MRT) problem and a sparse reconstruction problem. For an active antenna unit (AAU) equipped with eight antennas, a designed example of the proposed OTTDP is presented. Furthermore, for a RIS-empowered mmWave C-RAN at 28 GHz, the received signal-to-noise ratio (SNR) curves obtained via different precoding schemes are compared and discussed. Compared with the precoding without RIS, the proposed NI-LF precoding by using different codebooks to quantize the phase-shifting of the RIS respectively achieves 20.56, 19.55, and 18.93 dB performance improvement for the user located near the 49-element RIS. Moreover, performance degradations due to limited feedback are analyzed. The computational complexity and overhead of the proposed NI-LF precoding algorithm are also given and discussed. reconfigurable intelligent surface (dpeaa)DE-He213 optical true time delay (dpeaa)DE-He213 millimeter-wave (dpeaa)DE-He213 cloud radio access network (dpeaa)DE-He213 limited feedback (dpeaa)DE-He213 Wang, Xiaowen aut Zhang, Chongfu aut Peng, Jie aut Yang, Muchuan aut Fu, Songnian aut Liu, Deming aut Qiu, Kun aut Enthalten in Science in China Heidelberg : Springer, 2001 64(2021), 10 vom: 07. Sept. (DE-627)385614764 (DE-600)2142898-0 1862-2836 nnns volume:64 year:2021 number:10 day:07 month:09 https://dx.doi.org/10.1007/s11432-020-3253-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 64 2021 10 07 09
language	English
source	Enthalten in Science in China 64(2021), 10 vom: 07. Sept. volume:64 year:2021 number:10 day:07 month:09
sourceStr	Enthalten in Science in China 64(2021), 10 vom: 07. Sept. volume:64 year:2021 number:10 day:07 month:09
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	reconfigurable intelligent surface optical true time delay millimeter-wave cloud radio access network limited feedback
isfreeaccess_bool	false
container_title	Science in China
authorswithroles_txt_mv	Huang, Huan @@aut@@ Wang, Xiaowen @@aut@@ Zhang, Chongfu @@aut@@ Peng, Jie @@aut@@ Yang, Muchuan @@aut@@ Fu, Songnian @@aut@@ Liu, Deming @@aut@@ Qiu, Kun @@aut@@
publishDateDaySort_date	2021-09-07T00:00:00Z
hierarchy_top_id	385614764
id	SPR05114803X
language_de	englisch
fullrecord	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">SPR05114803X</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230509120554.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">230508s2021 xx \|\|\|\|\|o 00\| \|\|eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/s11432-020-3253-7</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)SPR05114803X</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(SPR)s11432-020-3253-7-e</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Huang, Huan</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Optical true time delay pool-based beamforming and limited feedback for reconfigurable intelligent surface-empowered cloud radio access networks</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2021</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract Introducing reconfigurable intelligent surfaces (RISs) greatly improves the wireless propagation environment. Limited to feedback overheads and computing power, the low-complexity precoding and the cost-effective beamforming implementation are urgently demanded in RIS-empowered millimeter-wave cloud radio access networks (mmWave C-RANs). Herein, an optical true time delay pool-based hybrid beam-forming (OTTDP-based HBF) scheme, enabling centralized analog beamforming control, is proposed for RIS-empowered mmWave C-RANs. By using codebook quantization techniques, we develop a non-iterative limited feedback (NI-LF) precoding algorithm for the RIS-empowered mmWave C-RAN using the proposed OTTDP-based HBF. In the NI-LF precoding algorithm, the complex joint optimization problem of hybrid precoding and phase-shifting of RIS is equivalently formulated as a maximum ratio transmission (MRT) problem and a sparse reconstruction problem. For an active antenna unit (AAU) equipped with eight antennas, a designed example of the proposed OTTDP is presented. Furthermore, for a RIS-empowered mmWave C-RAN at 28 GHz, the received signal-to-noise ratio (SNR) curves obtained via different precoding schemes are compared and discussed. Compared with the precoding without RIS, the proposed NI-LF precoding by using different codebooks to quantize the phase-shifting of the RIS respectively achieves 20.56, 19.55, and 18.93 dB performance improvement for the user located near the 49-element RIS. Moreover, performance degradations due to limited feedback are analyzed. The computational complexity and overhead of the proposed NI-LF precoding algorithm are also given and discussed.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">reconfigurable intelligent surface</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">optical true time delay</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">millimeter-wave</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">cloud radio access network</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">limited feedback</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wang, Xiaowen</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zhang, Chongfu</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Peng, Jie</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Yang, Muchuan</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Fu, Songnian</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Liu, Deming</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Qiu, Kun</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Science in China</subfield><subfield code="d">Heidelberg : Springer, 2001</subfield><subfield code="g">64(2021), 10 vom: 07. Sept.</subfield><subfield code="w">(DE-627)385614764</subfield><subfield code="w">(DE-600)2142898-0</subfield><subfield code="x">1862-2836</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:64</subfield><subfield code="g">year:2021</subfield><subfield code="g">number:10</subfield><subfield code="g">day:07</subfield><subfield code="g">month:09</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://dx.doi.org/10.1007/s11432-020-3253-7</subfield><subfield code="z">lizenzpflichtig</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_SPRINGER</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_20</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_22</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_23</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_24</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_31</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_32</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_39</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_60</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_62</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_65</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_69</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_73</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_74</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_90</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_95</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_100</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_101</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_105</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_110</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_120</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_138</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_152</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_161</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_171</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_187</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_224</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_250</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_281</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_285</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_293</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_370</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_602</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_702</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">64</subfield><subfield code="j">2021</subfield><subfield code="e">10</subfield><subfield code="b">07</subfield><subfield code="c">09</subfield></datafield></record></collection>
author	Huang, Huan
spellingShingle	Huang, Huan misc reconfigurable intelligent surface misc optical true time delay misc millimeter-wave misc cloud radio access network misc limited feedback Optical true time delay pool-based beamforming and limited feedback for reconfigurable intelligent surface-empowered cloud radio access networks
authorStr	Huang, Huan
ppnlink_with_tag_str_mv	@@773@@(DE-627)385614764
format	electronic Article
delete_txt_mv	keep
author_role	aut aut aut aut aut aut aut aut
collection	springer
remote_str	true
illustrated	Not Illustrated
issn	1862-2836
topic_title	Optical true time delay pool-based beamforming and limited feedback for reconfigurable intelligent surface-empowered cloud radio access networks reconfigurable intelligent surface (dpeaa)DE-He213 optical true time delay (dpeaa)DE-He213 millimeter-wave (dpeaa)DE-He213 cloud radio access network (dpeaa)DE-He213 limited feedback (dpeaa)DE-He213
topic	misc reconfigurable intelligent surface misc optical true time delay misc millimeter-wave misc cloud radio access network misc limited feedback
topic_unstemmed	misc reconfigurable intelligent surface misc optical true time delay misc millimeter-wave misc cloud radio access network misc limited feedback
topic_browse	misc reconfigurable intelligent surface misc optical true time delay misc millimeter-wave misc cloud radio access network misc limited feedback
format_facet	Elektronische Aufsätze Aufsätze Elektronische Ressource
format_main_str_mv	Text Zeitschrift/Artikel
carriertype_str_mv	cr
hierarchy_parent_title	Science in China
hierarchy_parent_id	385614764
hierarchy_top_title	Science in China
isfreeaccess_txt	false
familylinks_str_mv	(DE-627)385614764 (DE-600)2142898-0
title	Optical true time delay pool-based beamforming and limited feedback for reconfigurable intelligent surface-empowered cloud radio access networks
ctrlnum	(DE-627)SPR05114803X (SPR)s11432-020-3253-7-e
title_full	Optical true time delay pool-based beamforming and limited feedback for reconfigurable intelligent surface-empowered cloud radio access networks
author_sort	Huang, Huan
journal	Science in China
journalStr	Science in China
lang_code	eng
isOA_bool	false
recordtype	marc
publishDateSort	2021
contenttype_str_mv	txt
author_browse	Huang, Huan Wang, Xiaowen Zhang, Chongfu Peng, Jie Yang, Muchuan Fu, Songnian Liu, Deming Qiu, Kun
container_volume	64
format_se	Elektronische Aufsätze
author-letter	Huang, Huan
doi_str_mv	10.1007/s11432-020-3253-7
title_sort	optical true time delay pool-based beamforming and limited feedback for reconfigurable intelligent surface-empowered cloud radio access networks
title_auth	Optical true time delay pool-based beamforming and limited feedback for reconfigurable intelligent surface-empowered cloud radio access networks
abstract	Abstract Introducing reconfigurable intelligent surfaces (RISs) greatly improves the wireless propagation environment. Limited to feedback overheads and computing power, the low-complexity precoding and the cost-effective beamforming implementation are urgently demanded in RIS-empowered millimeter-wave cloud radio access networks (mmWave C-RANs). Herein, an optical true time delay pool-based hybrid beam-forming (OTTDP-based HBF) scheme, enabling centralized analog beamforming control, is proposed for RIS-empowered mmWave C-RANs. By using codebook quantization techniques, we develop a non-iterative limited feedback (NI-LF) precoding algorithm for the RIS-empowered mmWave C-RAN using the proposed OTTDP-based HBF. In the NI-LF precoding algorithm, the complex joint optimization problem of hybrid precoding and phase-shifting of RIS is equivalently formulated as a maximum ratio transmission (MRT) problem and a sparse reconstruction problem. For an active antenna unit (AAU) equipped with eight antennas, a designed example of the proposed OTTDP is presented. Furthermore, for a RIS-empowered mmWave C-RAN at 28 GHz, the received signal-to-noise ratio (SNR) curves obtained via different precoding schemes are compared and discussed. Compared with the precoding without RIS, the proposed NI-LF precoding by using different codebooks to quantize the phase-shifting of the RIS respectively achieves 20.56, 19.55, and 18.93 dB performance improvement for the user located near the 49-element RIS. Moreover, performance degradations due to limited feedback are analyzed. The computational complexity and overhead of the proposed NI-LF precoding algorithm are also given and discussed. © Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021
abstractGer	Abstract Introducing reconfigurable intelligent surfaces (RISs) greatly improves the wireless propagation environment. Limited to feedback overheads and computing power, the low-complexity precoding and the cost-effective beamforming implementation are urgently demanded in RIS-empowered millimeter-wave cloud radio access networks (mmWave C-RANs). Herein, an optical true time delay pool-based hybrid beam-forming (OTTDP-based HBF) scheme, enabling centralized analog beamforming control, is proposed for RIS-empowered mmWave C-RANs. By using codebook quantization techniques, we develop a non-iterative limited feedback (NI-LF) precoding algorithm for the RIS-empowered mmWave C-RAN using the proposed OTTDP-based HBF. In the NI-LF precoding algorithm, the complex joint optimization problem of hybrid precoding and phase-shifting of RIS is equivalently formulated as a maximum ratio transmission (MRT) problem and a sparse reconstruction problem. For an active antenna unit (AAU) equipped with eight antennas, a designed example of the proposed OTTDP is presented. Furthermore, for a RIS-empowered mmWave C-RAN at 28 GHz, the received signal-to-noise ratio (SNR) curves obtained via different precoding schemes are compared and discussed. Compared with the precoding without RIS, the proposed NI-LF precoding by using different codebooks to quantize the phase-shifting of the RIS respectively achieves 20.56, 19.55, and 18.93 dB performance improvement for the user located near the 49-element RIS. Moreover, performance degradations due to limited feedback are analyzed. The computational complexity and overhead of the proposed NI-LF precoding algorithm are also given and discussed. © Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021
abstract_unstemmed	Abstract Introducing reconfigurable intelligent surfaces (RISs) greatly improves the wireless propagation environment. Limited to feedback overheads and computing power, the low-complexity precoding and the cost-effective beamforming implementation are urgently demanded in RIS-empowered millimeter-wave cloud radio access networks (mmWave C-RANs). Herein, an optical true time delay pool-based hybrid beam-forming (OTTDP-based HBF) scheme, enabling centralized analog beamforming control, is proposed for RIS-empowered mmWave C-RANs. By using codebook quantization techniques, we develop a non-iterative limited feedback (NI-LF) precoding algorithm for the RIS-empowered mmWave C-RAN using the proposed OTTDP-based HBF. In the NI-LF precoding algorithm, the complex joint optimization problem of hybrid precoding and phase-shifting of RIS is equivalently formulated as a maximum ratio transmission (MRT) problem and a sparse reconstruction problem. For an active antenna unit (AAU) equipped with eight antennas, a designed example of the proposed OTTDP is presented. Furthermore, for a RIS-empowered mmWave C-RAN at 28 GHz, the received signal-to-noise ratio (SNR) curves obtained via different precoding schemes are compared and discussed. Compared with the precoding without RIS, the proposed NI-LF precoding by using different codebooks to quantize the phase-shifting of the RIS respectively achieves 20.56, 19.55, and 18.93 dB performance improvement for the user located near the 49-element RIS. Moreover, performance degradations due to limited feedback are analyzed. The computational complexity and overhead of the proposed NI-LF precoding algorithm are also given and discussed. © Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021
collection_details	GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702
container_issue	10
title_short	Optical true time delay pool-based beamforming and limited feedback for reconfigurable intelligent surface-empowered cloud radio access networks
url	https://dx.doi.org/10.1007/s11432-020-3253-7
remote_bool	true
author2	Wang, Xiaowen Zhang, Chongfu Peng, Jie Yang, Muchuan Fu, Songnian Liu, Deming Qiu, Kun
author2Str	Wang, Xiaowen Zhang, Chongfu Peng, Jie Yang, Muchuan Fu, Songnian Liu, Deming Qiu, Kun
ppnlink	385614764
mediatype_str_mv	c
isOA_txt	false
hochschulschrift_bool	false
doi_str	10.1007/s11432-020-3253-7
up_date	2024-07-03T20:04:52.712Z
_version_	1803589614528626688
fullrecord_marcxml	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">SPR05114803X</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230509120554.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">230508s2021 xx \|\|\|\|\|o 00\| \|\|eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/s11432-020-3253-7</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)SPR05114803X</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(SPR)s11432-020-3253-7-e</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Huang, Huan</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Optical true time delay pool-based beamforming and limited feedback for reconfigurable intelligent surface-empowered cloud radio access networks</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2021</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract Introducing reconfigurable intelligent surfaces (RISs) greatly improves the wireless propagation environment. Limited to feedback overheads and computing power, the low-complexity precoding and the cost-effective beamforming implementation are urgently demanded in RIS-empowered millimeter-wave cloud radio access networks (mmWave C-RANs). Herein, an optical true time delay pool-based hybrid beam-forming (OTTDP-based HBF) scheme, enabling centralized analog beamforming control, is proposed for RIS-empowered mmWave C-RANs. By using codebook quantization techniques, we develop a non-iterative limited feedback (NI-LF) precoding algorithm for the RIS-empowered mmWave C-RAN using the proposed OTTDP-based HBF. In the NI-LF precoding algorithm, the complex joint optimization problem of hybrid precoding and phase-shifting of RIS is equivalently formulated as a maximum ratio transmission (MRT) problem and a sparse reconstruction problem. For an active antenna unit (AAU) equipped with eight antennas, a designed example of the proposed OTTDP is presented. Furthermore, for a RIS-empowered mmWave C-RAN at 28 GHz, the received signal-to-noise ratio (SNR) curves obtained via different precoding schemes are compared and discussed. Compared with the precoding without RIS, the proposed NI-LF precoding by using different codebooks to quantize the phase-shifting of the RIS respectively achieves 20.56, 19.55, and 18.93 dB performance improvement for the user located near the 49-element RIS. Moreover, performance degradations due to limited feedback are analyzed. The computational complexity and overhead of the proposed NI-LF precoding algorithm are also given and discussed.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">reconfigurable intelligent surface</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">optical true time delay</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">millimeter-wave</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">cloud radio access network</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">limited feedback</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wang, Xiaowen</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zhang, Chongfu</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Peng, Jie</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Yang, Muchuan</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Fu, Songnian</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Liu, Deming</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Qiu, Kun</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Science in China</subfield><subfield code="d">Heidelberg : Springer, 2001</subfield><subfield code="g">64(2021), 10 vom: 07. Sept.</subfield><subfield code="w">(DE-627)385614764</subfield><subfield code="w">(DE-600)2142898-0</subfield><subfield code="x">1862-2836</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:64</subfield><subfield code="g">year:2021</subfield><subfield code="g">number:10</subfield><subfield code="g">day:07</subfield><subfield code="g">month:09</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://dx.doi.org/10.1007/s11432-020-3253-7</subfield><subfield code="z">lizenzpflichtig</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_SPRINGER</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_20</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_22</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_23</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_24</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_31</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_32</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_39</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_60</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_62</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_65</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_69</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_73</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_74</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_90</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_95</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_100</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_101</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_105</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_110</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_120</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_138</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_152</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_161</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_171</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_187</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_224</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_250</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_281</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_285</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_293</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_370</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_602</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_702</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">64</subfield><subfield code="j">2021</subfield><subfield code="e">10</subfield><subfield code="b">07</subfield><subfield code="c">09</subfield></datafield></record></collection>
score	7.400819

Nicht das Richtige dabei?

Schreiben Sie uns!

Optical true time delay pool-based beamforming and limited feedback for reconfigurable intelligent surface-empowered cloud radio access networks

Nicht das Richtige dabei?

Zugang & Verfügbarkeit

Vorhandene Bände

Nicht das Richtige dabei?