A Communication Reliability Enhancement Framework for Wireless Sensor Network Using the ZigBee Protocol

This paper presents the framework that enhances the communication reliability of wireless sensor network using the ZigBee protocol. The paper begins with the introduction of common communication problems caused by the broken links between the sensor module and the message relay, or between different...
Ausführliche Beschreibung

This paper presents the framework that enhances the communication reliability of wireless sensor network using the ZigBee protocol. The paper begins with the introduction of common communication problems caused by the broken links between the sensor module and the message relay, or between different message-relays. Extra message handshake mechanisms are added to solve the mentioned problems. Based on the solution to different problems, a general purpose reliability enhancement framework is developed. The framework contains two state machines for both the sensor module and the massage relay. These two state machines can work together with the ZigBee protocol to enhance the network communication reliability. Moreover, the battery lifetime of the sensor module under link loss is considerably increased after the enhancement. Ausführliche Beschreibung