WSN中能量有效的多簇头层次型路由协议

为改善无线传感器网络中某些节点因能耗太大而过早失效的情况,提出了一种基于分簇的多簇头能量有效算法EHMVA(energy-efficient hierarchical multiple vice-cluster-head algorithm)。在簇头选择机制中引入邻节点距离的概念,采用多副簇头选举分担主簇头能耗的机制,通过发现联结节点和引入误差发送机制来减少数据发送,并通过延长稳定的簇通信时间来降低簇重建的频率。仿真实验表明,该算法有效地平衡了节点间的能量消耗,显著地延长了网络的存活时间。

Energy-efficient multi-cluster head hierarchical routing protocol in wireless sensor networks

To ameliorate the situation that some nodes die too early due to the uneven energy consumption in wireless sensor networks,this paper proposed the energy-efficient hierarchical multiple vice-cluster-head algorithm in wireless sensor networks(EHMVA),which introduced the concept of neighbor distance in the cluster head selection mechanism,used vice-cluster-head mechanism to share the energy consumption of primary cluster-heads,added the concept of link-nodes,sent data according to the errors and extended the stable cluster communication phases to reduce the frequency of cluster reconstruction.Simulation results demonstrate that the energy consumption is more even in EHMVA so as to prolong network lifetime effectively.