新颖的冗余节点无线传感网能量感知分簇算法

针对一类具有冗余节点的无线传感网,提出了一种新颖的能量感知的动态分簇算法NEAC。它基于动态分簇路由机制,根据节点分布密集程度簇内分布一定数量的休眠节点,在数据传输阶段,这些休眠节点不感知和发送数据,当簇首节点的能量消耗达到一定阈值后需要重新轮换簇首,它们被唤醒并根据休眠节点和簇首轮换机制实现快速簇首和休眠节点选举以平衡节点间的能耗。仿真结果表明,与典型的分簇协议相比,NEAC能够更好地平衡节点的能耗,获得更长的网络生存期。

Novel Energy-Aware Clustering Algorithm for WSN with Redundant Nodes

This paper proposes a novel energy-aware clustering algorithm for wireless sensor network with redundant nodes,called NEAC. It is based on clustering routing mechanism and distributes certain number of dormant nodes according to the intensive distribution of cluster nodes. These dormant nodes do not perceive and send any data during data transmission phase. When the energy consumption of cluster head nodes reaches a certain threshold and needs to be replaced,those dormant nodes around the cluster heads are waken up and then cluster head nodes and dormant nodes are rapidly elected again according to the cluster head rotating mechanism,which can balance energy consumption of WSN. Simulation results show that compared with typical clustering protocols,NEAC can balance the energy consumption of nodes better,and thus increase the lifetime of WSN.