A Power Controlled MAC Protocol for Wireless Sensor Networks(PCMAC)
Shen Yang · Journal of Nanjing University of Posts and Telecommunications · 2007
The cross-layer protocol has been a hot topic in WSN research.The design of MAC protocol can be improved by extracting information in network and physical layers.Following the integration and optmization of some existing cross-layer protocols,the time slot assignment algorithm of MAC layer under TDMA mode is improved by use of the routing information in network layer and transmitting power information in physical layer.Through reasonable time slot assignment and transmitting power control of each sensor node,for wireless sensor networks,the energy consumption is decreased and the lifetime is enlarged.Simulation results show that the designed MAC protocol works well.