一种基于能量均衡的分簇多跳路由协议EB-LEACH

A Clustering Multi-Hop Routing Protocol EB-LEACH Based on Energy Balance

针对经典LEACH协议中随机选取簇首造成簇的分布不均,簇首节点在选择时没有考虑剩余能量,簇首节点到汇聚节点采用单跳通信等不足,提出了一种基于能量均衡的分簇多跳路由协议EB-LEACH.该协议采取增设中继节点承担数据转发,分担簇首节点工作的方式来节省节点能量,从而可延长整个传感器网络的生命周期.利用NS2对改进协议EB-LEACH与原协议LEACH进行了仿真实验研究,结果表明:改进协议在网络寿命、基站接收数据量和能量消耗等方面较之原协议均有所改进.

On this basis of some inadequacies analysis for a classical LEACH protocol, such as the uneven distribution of cluster nodes caused by randomly selected cluster head, the cluster head selecting without considering the residual energy of the node and the single hop communication from cluster head to sink node, this paper presents the EB-LEACH protocol which was presented based on energy balance optimization. Therefore in the improved protocol, a class of relay nodes was added into WSN, and these relay nodes shared the work of forwarding data originally belonging to the cluster head, thence reduced the energy consumption of cluster head and made the energy consumption of node more even, which extended the life time of the entire sensor network. Then NS2 simulation tool was adapted to the simulation work of the improved protocol EB-LEACH and the original protocol LEACH. Study results show that the improved protocol in life time of the network, base station receiving data and energy consumption has better performance than the original protocol.