基于均匀分簇的无线传感网络路由协议设计
An Even Cluster-Based Routing Protocol for Wireless Sensor Networks
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摘要: 分簇路由算法研究与设计是无线传感网络路由协议研究的热点之一。基于均匀分簇路由算法GRID,提出了一种新的路由策略-Q-GRID,对网络覆盖区域进行四叉树划分与编码,从而改进了GRID协议簇首节点选取缺陷;结合剩余能量和数据传输距离两方面因素,提出了新的选择簇首节点的方法,路由上同样考虑剩余能量和传输距离,使网络耗能更均匀;最后,用OMNeT++对GRID和Q-GRID进行仿真对比结果表明,Q-GRID在网络总体能耗、平均能耗以及网络生命周期上更优于GRID。Abstract: Research and design on clustering routing has been the focus of the wireless sensor network routing protocols. Based on the even clustering routing GRID,we propose a new routing protocal named Q-GRID. In Q-GRID,the network coverage area is quad-tree divided and coded. The improvement of GRID is based on residual energy and transmission distance between cluster head,improving the strategy of selecting cluster head and proposing a better one. Based on residual energy and transmission distance when a next hop node is selected,the energy dissipation of whole network is more even. Both of the algorithms were emulated in OMNeT ++. The result of the emulation proves that compared with GRID,Q-GIRD lifetime is longer and the energy dissipation is less.