基于SEP协议改进的最优稳定选举算法

针对二级初始能量异构的无线传感器网络运行过程中出现的节点能耗不均衡和网络稳定生命周期较短问题,基于SEP协议,考虑节点和簇头能量因素,以及结合节点和簇头的数据传输距离因素,提出一种改进的稳定选举路由算法(E-SEP),分析了算法本身在不同高级节点占比和不同总结点数量下的性能,并与低功耗自适应集簇分层-确定性簇头选取(L...

Improved optimal stable election algorithm based on SEP protocol

Aiming at the problems of uneven energy consumption of nodes and short network stability life cycle during the operation of the wireless sensor network with two-level initial energy heterogeneity.Based on the SEP protocol,considering the energy factors of nodes and cluster heads,and combined with the data transmission distance factor of nodes and cluster heads,an improved stable election routing algorithm was proposed.The performance of the algorithm itself at different proportion of advanced node and different number of nodes was analyzed.The performance were compared with the LEACHDCHS algorithm and the SEP algorithm.The results show that as the proportion of advanced nodes increases,the average number of ordinary nodes elected as cluster heads gradually increases,and the average energy of the sensor network nodes also gradually increases.With the increase of the network space and the total number of nodes,the probability of ordinary nodes becoming cluster heads also increases,and the average energy of nodes also increases gradually.Compared with the SEP algorithm and the LEACH-DCHS algorithm,the E-SEP algorithm has lower and more balanced node energy consumption,which can effectively extend the life cycle of the sensor network.