基于RSSI均值的无线传感器网络拓扑控制算法

针对采用接收信号强度指示(RSSI)值构建拓扑存在误差的不足，提出一种分布式拓扑控制算法RTC。该算法基于RSSI均值计算节点间双向路径损耗，从而判断两节点间是否存在每跳通信链路代价都小于直接通信链路代价的两跳路径，以构建局部优化拓扑。理论分析了算法的通信复杂度和网络连通性，仿真分析了其节能特性，结果表明RTC在降低网络能量消耗的同时延长了网络生命周期。

Topology control algorithm for wireless sensor network based on mean RSSI

With regard to the problem that Received Signal Strength Indicator(RSSI) has errors in spatial and temporal extension,a new distributed real wireless environment faced topology control algorithm named RTC was proposed in this paper.RTC used the mean RSSI value to compute the bi-directional path-loss and found a path with two hops between two nodes of which the link cost across each hop was less than that of these two nodes.The communication complexity and network connectivity of RTC were analyzed and simulation based analysis on energy property was presented.The simulation results show that RTC has such advantages as balanced energy consumption and long network lifetime.