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针对无线传感器网络能量有限的问题,从稳定性的角度出发,提出一种在低功耗自适应分簇路由算法(LEACH)的基础上的改进算法。该算法首先确定高斯分布下最优簇头数目,在一个周期内,节点能量高于网内平均可用能量可以多次竞选簇头,并相应地延长周期的轮数。经仿真结果表明,在高斯分布下每一轮簇头的数量保持在最优簇头数目上下,改进协议能获得比LEACH协议更长的网络稳定期,更高的能量利用率。
Aiming at the problem of limited energy in wireless sensor networks, this paper proposes an improved algorithm based on Low Power Adaptive Clustering Routing Algorithm (LEACH) from the perspective of stability. The algorithm firstly determines the optimal number of cluster heads under the Gaussian distribution. In one cycle, the node energy is higher than the average available energy in the network and can be used to repeatedly select the cluster heads and extend the number of rounds accordingly. The simulation results show that under the Gaussian distribution, the number of cluster heads per round remains at the optimal number of cluster heads, and the improved protocol can achieve longer network stability and higher energy utilization than the LEACH protocol.