一种基于无线传感器网络分簇路由的改进算法

为了提高无线传感器网络能量的有效性，延长网络生命周期，在分析了无线传感器网络路由协议中的LEACH算法和SEP算法机理的基础上，提出了改进型SEP算法．改进型SEP算法能够在能量异构的网络模式下，通过改进选举簇头机制，提高了剩余能量较高的节点当选为簇头的概率，增加了选举簇头节点的合理性，有效地均衡了网络中的节点能耗，延长了网络的生命周期．实验结果表明：改进后的算法与LEACH算法和传统的SEP算法相比，在平衡节点能量和延长网络寿命方面具有更加优越的性能．

An improved clustering-based routing algorithm for wireless sensor networks

To improve the energy dissipated performance and extend the lifetime for wireless sensor networks（WSNs）,an improved clustering-based routing algorithm is proposed which is based on the mechanism analysis of LEACH and SEP routing algorithms in WSN. In the situation of heterogeneous energy networks, the presented algorithm raises the probability value for the potential cluster heads with more residual energy by modifying the cluster heads election. This approach prolongs the network lifetime by raising the reliability for clus- ter heads election with energy balance. Experimental results illustrate that the presented al- gorithm may provide better performance on network energy balance and lifetime than LEACH or traditional SEP routing algorithms.