感器技术、微机电系统、现代网络和无线通信等技术的进步，推动丁具有现代意义的无线传感器网络的产生和发展。无线传感

器网络能档广泛地应用于恶劣环境和军事领域中。该文通过对无线传感器网络特点的分析，提出了基于信道接入的多跳讣簇网络结构，给

出了．OPNET仿真模型，分析了相关仿真结果。-Because of advances in sensor technology，micro-electro—mechanism system fMEMS)．modern network and wireless communication

technology，wireless sensor networks(WSN)file designed and developed Wireless sensor network call be applied to both abominable and military

environments Though analysis of network characteristics in WSN，llew architecture of channel access—based multihop cluster(CAMC)network is

put forward，and OPNETsimulation model is introduced The simulation results analyzed．