一种能量均衡的无线传感器网络分簇路由协议

由于无线传感器网络节点能量有限,为均衡无线传感器网络节点之间的能量消耗,提高整体网络的生命周期,针对LEACH协议中簇首选举时未考虑节点剩余能量因素、随机分簇等不足,提出了一种改进的LEACH协议.改进的LEACH协议在簇首选举时,以节点的剩余能量作为重要参考依据,优化节点担任簇首的概率.仿真结果表明,与传统的LEACH协议相比,改进的LEACH协议达到了能量消耗均衡的目标,从而延长了网络的生存寿命.

An Energy-Balanced Cluster Routing Protocol of Wireless Sensor Network

There is limited energy inside the wireless sensor network nodes.In order to balance the energy consumption among wireless nodes and extend the life cycle of the whole network,a revised LEACH protocol is proposed,with the consideration on residual node energy to address the shortage of random clustering when choosing the cluster-head in LEACH.The cluster-head is chosen by improved LEACH protocol mainly based on the remaining energy inside nodes,and the probability of a cluster-head with higher residual energy of a node is raised.Simulations reveal that improved LEACH protocol is better at balancing energy distribution among nodes and extending network life cycle than traditional LEACH protocols.