Title :
An energy-efficient cooperative MAC protocol with piggybacking for wireless sensor networks
Author :
Pi, Xurong ; Cai, Yueming ; Yao, Guoliang
Author_Institution :
Inst. of Commun. Eng., PLAUST, Nanjing, China
Abstract :
Cooperative technology is one of the promising techniques to enhance the performance of wireless networks. In this paper, a cooperative MAC protocol with piggybacking (CPS-MAC) is designed for the WSN to improve the energy efficiency of the nodes´ communication with each other. In this protocol, a relay node is selected basing on the buffer state and the channel state information (CSI) obtained by the RTS/CTS messages. The numerical results show that the energy consumed per transmitted bit decrease by 25%-35% when using CPS-MAC. And improving energy efficiency by reducing the duty cycle to a proper level is proved to be feasible.
Keywords :
access protocols; cooperative communication; energy conservation; wireless sensor networks; RTS-CTS messages; buffer state; channel state information; cooperative MAC protocol with piggybacking; energy efficiency; node communication; relay node; wireless sensor networks; Delay; Energy consumption; Energy efficiency; Media Access Protocol; Relays; Wireless sensor networks; Energy-efficiency; cooperative MAC; periodic sleeping; piggybacking;
Conference_Titel :
Wireless Communications and Signal Processing (WCSP), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4577-1009-4
Electronic_ISBN :
978-1-4577-1008-7
DOI :
10.1109/WCSP.2011.6096832
