Linear Estimation of Clock Frequency Offset for Time Synchronization Based on Overhearing in Wireless Sensor Networks
The overhearing mechanism in time synchronization has been an active research area for wireless sensor networks (WSNs), for it can save a significant amount of energy by exploiting the wireless medium broadcast property. Recently, based on acknowledgment (ACK) mechanism, a synchronization scheme has...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Wang, Heng [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2016 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: IEEE communications letters - New York, NY : IEEE, 1997, 20(2016), 2, Seite 288-291 |
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| Übergeordnetes Werk: |
volume:20 ; year:2016 ; number:2 ; pages:288-291 |
| Links: |
|---|
| DOI / URN: |
10.1109/LCOMM.2015.2510645 |
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OLC1974245454 |
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| 245 | 1 | 0 | |a Linear Estimation of Clock Frequency Offset for Time Synchronization Based on Overhearing in Wireless Sensor Networks |
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| 520 | |a The overhearing mechanism in time synchronization has been an active research area for wireless sensor networks (WSNs), for it can save a significant amount of energy by exploiting the wireless medium broadcast property. Recently, based on acknowledgment (ACK) mechanism, a synchronization scheme has been proposed for practical WSNs that the timestamps can be directly inserted into the data frame and the corresponding ACK, instead of dedicated synchronization packet. Consequently, the overhead of time synchronization could be further reduced. Motivated by this, in this letter, we analyze the synchronization of inactive nodes overhearing the pairwise synchronization on the basis of ACK mechanism, and present a linear estimation algorithm of clock frequency offset with the nodes' clock adjusted at every synchronization. Furthermore, assuming Gaussian delays, the linear estimation for frequency offset and the corresponding Cramer-Rao lower bound are derived. Simulation results verify that the estimator is efficient. | ||
| 650 | 4 | |a Frequency estimation | |
| 650 | 4 | |a Frequency synchronization | |
| 650 | 4 | |a clock frequency offset estimation | |
| 650 | 4 | |a Synchronization | |
| 650 | 4 | |a Clocks | |
| 650 | 4 | |a Time synchronization | |
| 650 | 4 | |a Estimation | |
| 650 | 4 | |a Wireless sensor networks | |
| 650 | 4 | |a Delays | |
| 700 | 1 | |a Zeng, Haiyong |4 oth | |
| 700 | 1 | |a Wang, Ping |4 oth | |
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10.1109/LCOMM.2015.2510645 doi PQ20160430 (DE-627)OLC1974245454 (DE-599)GBVOLC1974245454 (PRQ)i893-9f4818d549300d13211cc1a42c56981bedb8da46d5a316217c63bfd8dbfefea80 (KEY)0326031320160000020000200288linearestimationofclockfrequencyoffsetfortimesynch DE-627 ger DE-627 rakwb eng 620 004 DNB Wang, Heng verfasserin aut Linear Estimation of Clock Frequency Offset for Time Synchronization Based on Overhearing in Wireless Sensor Networks 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The overhearing mechanism in time synchronization has been an active research area for wireless sensor networks (WSNs), for it can save a significant amount of energy by exploiting the wireless medium broadcast property. Recently, based on acknowledgment (ACK) mechanism, a synchronization scheme has been proposed for practical WSNs that the timestamps can be directly inserted into the data frame and the corresponding ACK, instead of dedicated synchronization packet. Consequently, the overhead of time synchronization could be further reduced. Motivated by this, in this letter, we analyze the synchronization of inactive nodes overhearing the pairwise synchronization on the basis of ACK mechanism, and present a linear estimation algorithm of clock frequency offset with the nodes' clock adjusted at every synchronization. Furthermore, assuming Gaussian delays, the linear estimation for frequency offset and the corresponding Cramer-Rao lower bound are derived. Simulation results verify that the estimator is efficient. Frequency estimation Frequency synchronization clock frequency offset estimation Synchronization Clocks Time synchronization Estimation Wireless sensor networks Delays Zeng, Haiyong oth Wang, Ping oth Enthalten in IEEE communications letters New York, NY : IEEE, 1997 20(2016), 2, Seite 288-291 (DE-627)224842838 (DE-600)1360382-6 (DE-576)058070435 1089-7798 nnns volume:20 year:2016 number:2 pages:288-291 http://dx.doi.org/10.1109/LCOMM.2015.2510645 Volltext http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=7361973 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-MAT GBV_ILN_70 AR 20 2016 2 288-291 |
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10.1109/LCOMM.2015.2510645 doi PQ20160430 (DE-627)OLC1974245454 (DE-599)GBVOLC1974245454 (PRQ)i893-9f4818d549300d13211cc1a42c56981bedb8da46d5a316217c63bfd8dbfefea80 (KEY)0326031320160000020000200288linearestimationofclockfrequencyoffsetfortimesynch DE-627 ger DE-627 rakwb eng 620 004 DNB Wang, Heng verfasserin aut Linear Estimation of Clock Frequency Offset for Time Synchronization Based on Overhearing in Wireless Sensor Networks 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The overhearing mechanism in time synchronization has been an active research area for wireless sensor networks (WSNs), for it can save a significant amount of energy by exploiting the wireless medium broadcast property. Recently, based on acknowledgment (ACK) mechanism, a synchronization scheme has been proposed for practical WSNs that the timestamps can be directly inserted into the data frame and the corresponding ACK, instead of dedicated synchronization packet. Consequently, the overhead of time synchronization could be further reduced. Motivated by this, in this letter, we analyze the synchronization of inactive nodes overhearing the pairwise synchronization on the basis of ACK mechanism, and present a linear estimation algorithm of clock frequency offset with the nodes' clock adjusted at every synchronization. Furthermore, assuming Gaussian delays, the linear estimation for frequency offset and the corresponding Cramer-Rao lower bound are derived. Simulation results verify that the estimator is efficient. Frequency estimation Frequency synchronization clock frequency offset estimation Synchronization Clocks Time synchronization Estimation Wireless sensor networks Delays Zeng, Haiyong oth Wang, Ping oth Enthalten in IEEE communications letters New York, NY : IEEE, 1997 20(2016), 2, Seite 288-291 (DE-627)224842838 (DE-600)1360382-6 (DE-576)058070435 1089-7798 nnns volume:20 year:2016 number:2 pages:288-291 http://dx.doi.org/10.1109/LCOMM.2015.2510645 Volltext http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=7361973 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-MAT GBV_ILN_70 AR 20 2016 2 288-291 |
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10.1109/LCOMM.2015.2510645 doi PQ20160430 (DE-627)OLC1974245454 (DE-599)GBVOLC1974245454 (PRQ)i893-9f4818d549300d13211cc1a42c56981bedb8da46d5a316217c63bfd8dbfefea80 (KEY)0326031320160000020000200288linearestimationofclockfrequencyoffsetfortimesynch DE-627 ger DE-627 rakwb eng 620 004 DNB Wang, Heng verfasserin aut Linear Estimation of Clock Frequency Offset for Time Synchronization Based on Overhearing in Wireless Sensor Networks 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The overhearing mechanism in time synchronization has been an active research area for wireless sensor networks (WSNs), for it can save a significant amount of energy by exploiting the wireless medium broadcast property. Recently, based on acknowledgment (ACK) mechanism, a synchronization scheme has been proposed for practical WSNs that the timestamps can be directly inserted into the data frame and the corresponding ACK, instead of dedicated synchronization packet. Consequently, the overhead of time synchronization could be further reduced. Motivated by this, in this letter, we analyze the synchronization of inactive nodes overhearing the pairwise synchronization on the basis of ACK mechanism, and present a linear estimation algorithm of clock frequency offset with the nodes' clock adjusted at every synchronization. Furthermore, assuming Gaussian delays, the linear estimation for frequency offset and the corresponding Cramer-Rao lower bound are derived. Simulation results verify that the estimator is efficient. Frequency estimation Frequency synchronization clock frequency offset estimation Synchronization Clocks Time synchronization Estimation Wireless sensor networks Delays Zeng, Haiyong oth Wang, Ping oth Enthalten in IEEE communications letters New York, NY : IEEE, 1997 20(2016), 2, Seite 288-291 (DE-627)224842838 (DE-600)1360382-6 (DE-576)058070435 1089-7798 nnns volume:20 year:2016 number:2 pages:288-291 http://dx.doi.org/10.1109/LCOMM.2015.2510645 Volltext http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=7361973 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-MAT GBV_ILN_70 AR 20 2016 2 288-291 |
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10.1109/LCOMM.2015.2510645 doi PQ20160430 (DE-627)OLC1974245454 (DE-599)GBVOLC1974245454 (PRQ)i893-9f4818d549300d13211cc1a42c56981bedb8da46d5a316217c63bfd8dbfefea80 (KEY)0326031320160000020000200288linearestimationofclockfrequencyoffsetfortimesynch DE-627 ger DE-627 rakwb eng 620 004 DNB Wang, Heng verfasserin aut Linear Estimation of Clock Frequency Offset for Time Synchronization Based on Overhearing in Wireless Sensor Networks 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The overhearing mechanism in time synchronization has been an active research area for wireless sensor networks (WSNs), for it can save a significant amount of energy by exploiting the wireless medium broadcast property. Recently, based on acknowledgment (ACK) mechanism, a synchronization scheme has been proposed for practical WSNs that the timestamps can be directly inserted into the data frame and the corresponding ACK, instead of dedicated synchronization packet. Consequently, the overhead of time synchronization could be further reduced. Motivated by this, in this letter, we analyze the synchronization of inactive nodes overhearing the pairwise synchronization on the basis of ACK mechanism, and present a linear estimation algorithm of clock frequency offset with the nodes' clock adjusted at every synchronization. Furthermore, assuming Gaussian delays, the linear estimation for frequency offset and the corresponding Cramer-Rao lower bound are derived. Simulation results verify that the estimator is efficient. Frequency estimation Frequency synchronization clock frequency offset estimation Synchronization Clocks Time synchronization Estimation Wireless sensor networks Delays Zeng, Haiyong oth Wang, Ping oth Enthalten in IEEE communications letters New York, NY : IEEE, 1997 20(2016), 2, Seite 288-291 (DE-627)224842838 (DE-600)1360382-6 (DE-576)058070435 1089-7798 nnns volume:20 year:2016 number:2 pages:288-291 http://dx.doi.org/10.1109/LCOMM.2015.2510645 Volltext http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=7361973 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-MAT GBV_ILN_70 AR 20 2016 2 288-291 |
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10.1109/LCOMM.2015.2510645 doi PQ20160430 (DE-627)OLC1974245454 (DE-599)GBVOLC1974245454 (PRQ)i893-9f4818d549300d13211cc1a42c56981bedb8da46d5a316217c63bfd8dbfefea80 (KEY)0326031320160000020000200288linearestimationofclockfrequencyoffsetfortimesynch DE-627 ger DE-627 rakwb eng 620 004 DNB Wang, Heng verfasserin aut Linear Estimation of Clock Frequency Offset for Time Synchronization Based on Overhearing in Wireless Sensor Networks 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The overhearing mechanism in time synchronization has been an active research area for wireless sensor networks (WSNs), for it can save a significant amount of energy by exploiting the wireless medium broadcast property. Recently, based on acknowledgment (ACK) mechanism, a synchronization scheme has been proposed for practical WSNs that the timestamps can be directly inserted into the data frame and the corresponding ACK, instead of dedicated synchronization packet. Consequently, the overhead of time synchronization could be further reduced. Motivated by this, in this letter, we analyze the synchronization of inactive nodes overhearing the pairwise synchronization on the basis of ACK mechanism, and present a linear estimation algorithm of clock frequency offset with the nodes' clock adjusted at every synchronization. Furthermore, assuming Gaussian delays, the linear estimation for frequency offset and the corresponding Cramer-Rao lower bound are derived. Simulation results verify that the estimator is efficient. Frequency estimation Frequency synchronization clock frequency offset estimation Synchronization Clocks Time synchronization Estimation Wireless sensor networks Delays Zeng, Haiyong oth Wang, Ping oth Enthalten in IEEE communications letters New York, NY : IEEE, 1997 20(2016), 2, Seite 288-291 (DE-627)224842838 (DE-600)1360382-6 (DE-576)058070435 1089-7798 nnns volume:20 year:2016 number:2 pages:288-291 http://dx.doi.org/10.1109/LCOMM.2015.2510645 Volltext http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=7361973 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-MAT GBV_ILN_70 AR 20 2016 2 288-291 |
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Linear Estimation of Clock Frequency Offset for Time Synchronization Based on Overhearing in Wireless Sensor Networks |
| abstract |
The overhearing mechanism in time synchronization has been an active research area for wireless sensor networks (WSNs), for it can save a significant amount of energy by exploiting the wireless medium broadcast property. Recently, based on acknowledgment (ACK) mechanism, a synchronization scheme has been proposed for practical WSNs that the timestamps can be directly inserted into the data frame and the corresponding ACK, instead of dedicated synchronization packet. Consequently, the overhead of time synchronization could be further reduced. Motivated by this, in this letter, we analyze the synchronization of inactive nodes overhearing the pairwise synchronization on the basis of ACK mechanism, and present a linear estimation algorithm of clock frequency offset with the nodes' clock adjusted at every synchronization. Furthermore, assuming Gaussian delays, the linear estimation for frequency offset and the corresponding Cramer-Rao lower bound are derived. Simulation results verify that the estimator is efficient. |
| abstractGer |
The overhearing mechanism in time synchronization has been an active research area for wireless sensor networks (WSNs), for it can save a significant amount of energy by exploiting the wireless medium broadcast property. Recently, based on acknowledgment (ACK) mechanism, a synchronization scheme has been proposed for practical WSNs that the timestamps can be directly inserted into the data frame and the corresponding ACK, instead of dedicated synchronization packet. Consequently, the overhead of time synchronization could be further reduced. Motivated by this, in this letter, we analyze the synchronization of inactive nodes overhearing the pairwise synchronization on the basis of ACK mechanism, and present a linear estimation algorithm of clock frequency offset with the nodes' clock adjusted at every synchronization. Furthermore, assuming Gaussian delays, the linear estimation for frequency offset and the corresponding Cramer-Rao lower bound are derived. Simulation results verify that the estimator is efficient. |
| abstract_unstemmed |
The overhearing mechanism in time synchronization has been an active research area for wireless sensor networks (WSNs), for it can save a significant amount of energy by exploiting the wireless medium broadcast property. Recently, based on acknowledgment (ACK) mechanism, a synchronization scheme has been proposed for practical WSNs that the timestamps can be directly inserted into the data frame and the corresponding ACK, instead of dedicated synchronization packet. Consequently, the overhead of time synchronization could be further reduced. Motivated by this, in this letter, we analyze the synchronization of inactive nodes overhearing the pairwise synchronization on the basis of ACK mechanism, and present a linear estimation algorithm of clock frequency offset with the nodes' clock adjusted at every synchronization. Furthermore, assuming Gaussian delays, the linear estimation for frequency offset and the corresponding Cramer-Rao lower bound are derived. Simulation results verify that the estimator is efficient. |
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| title_short |
Linear Estimation of Clock Frequency Offset for Time Synchronization Based on Overhearing in Wireless Sensor Networks |
| url |
http://dx.doi.org/10.1109/LCOMM.2015.2510645 http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=7361973 |
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| author2 |
Zeng, Haiyong Wang, Ping |
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Zeng, Haiyong Wang, Ping |
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| doi_str |
10.1109/LCOMM.2015.2510645 |
| up_date |
2024-07-04T04:04:26.057Z |
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