Title :
A Global Time Synchronized MAC for Wireless Sensor Network
Author :
Chen, Yongrui ; Yi, Weidong ; Yang, Yang
Author_Institution :
Chinese Acad. of Sci., Grad. Univ., Beijing
Abstract :
In this paper, a TDMA-based Medium Access Control protocol (GMAC) for wireless sensor networks is proposed. We use global time synchronization and data gathering tree as the foundation of the protocol to form a contention free network for applications that sensors send packets to the sink. To assign time- slots and frequency channels for nodes, a distributed resource allocation strategy is designed. Furthermore, a MAC scheme is proposed to improve packet delivery reliability in the protocol. The simulations show that the protocol can reduce energy consumption and achieve higher reliability than contention-based protocols .
Keywords :
access protocols; time division multiple access; wireless sensor networks; TDMA-based medium access control protocol; contention-based protocols; global time synchronized MAC; packet delivery reliability; wireless sensor network; Access protocols; Costs; Delay; Frequency synchronization; Intelligent sensors; Media Access Protocol; Multiaccess communication; Radio spectrum management; Time division multiple access; Wireless sensor networks;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.934
