LEACH无线传感器网络中增加协作传输的能耗研究

Research on energy consumption in wireless sensor networks based on LEACH by increasing cooperative transmission

针对LEACH分簇路由协议存在簇间能耗不均的不足,利用分集增益消除多径衰落的特点,将协同通信的思想应用于无线传感器网络,解决无线传感器网络中LEACH协议下的簇间能耗不均衡问题。仿真结果证明:当节点间距离大于阈值距离时,协作传输可以有效地降低节点的能耗,从而均衡了整个网络的能耗。

Aiming at the shortcomings of unbalanced energy consumption among clusters in LEACH, cooperative transmission,whose advantage is that diversity gain can relieve the effect of the multipath fading, is adopted to solve the problem of unbalanced energy consumption among clusters in wireless sensor networks. Simulation results prove that when distance between nodes is larger than threshold, cooperative transmission can reduce energy consumption of the nodes effectively, which balances the energy consumption of the whole networks.