基于最优连通功率的无线传感器网络路由算法-计算机工程与应用.pdfVIP

Computer Engineering and Applications 计算机工程与应用 2015 ，51（22 ） 119 基于最优连通功率的无线传感器网络路由算法 刘丽军 LIU Lijun 湖南现代物流职业技术学院 物流信息系，长沙 410131 Department of Logistics Information, Hunan Vocational College of Modern Logistics, Changsha 410131, China LIU Lijun. Routing algorithm in wireless sensor network based on optimal connectivity power. Computer Engi- neering and Applications, 2015, 51 （22 ）：119-123. Abstract ：In order to prolong the life time of the network and ensure energy balance of the wireless sensor network, a novel routing algorithm of wireless sensor network based on optimal connectivity power is proposed in this paper to solve the deficiencies of LEACH algorithm. Firstly, the optimal neighbor set are chosen according to the optimal connectivity power, and then cluster head is selected according to the node residual energy and communication mode of inter cluster adaptively, finally the performance is test by simulation experiments on Matlab 2012. The simulation results show that the proposed algorithm has solved the node energy imbalance problem and improved the energy utilization of the network. Key words ：optimal connectivity power; wireless sensor networks; clustering routing; LEACH algorithm 摘 要：为了延长网络生存时间，保持节点的能耗平均衡，提出了一种最优连通功率的无线传感器网络路由算法。 首先根据最优连通功率选择最优的邻居节点集合，然后根据节点剩余能量选择簇首，并采用自适应的簇间通信方 式，最后在Matlab 2012 工具箱进行仿真测试。实验结果表明，相对于当前经典路由算法，提出的最优连通功率路由 算法解决了传感器节点耗能不均衡难题，提高了无线传感器节点的能量利用率。 关键词：最优连通功率；无线传感器网络；分簇路由；LEACH 算法 文献标志码：A 中图分类号：TP391 doi ：10.3778/j.issn. 1002-8331.1408-0100 1 引言 量，簇首与Sink 直接通信，簇首能耗不均衡，网络生命周 [5] 无线传感器网络（Wireless Sensor Networks ，WSN ） 期过短 。为此，在LEACH 算法的基础上，文献[6]提出 由一个由许多节点组成无线网络，节点能量、通信和计 了负载均衡的路由算法，利用簇半径、簇间距和节点能 算能力有限，而且部署在难以到达的恶劣环境，节点能 量为参数进行簇首选举，能量较多节点成为簇首的概率 量无法补充且易被破坏，导致节点失效，这是制约节点 大，但簇首与Sink 采用