Traffic-adaptive Hybrid MAC Protocol for Wireless Sensor Network
Peng Xia · Jisuanji gongcheng · 2008
This paper proposes a Traffic-adaptive Hybrid MAC(THMAC) protocol for wireless sensor networks.THMAC combines the advantages of TDMA and CSMA,tracks the situation of traffic and collision through forecasting mechanism,which lets node choice different channel access mode under different load,and efforts to achieve the adaptive mixed of CSMA and TDMA,which reduces the probability of data conflicting while striving to maintain higher channel utilization.Simulation results show that the THMAC can effectively lower the network data conflicting rate,and maintains a higher throughput when the number of contenders changes.