计算机与现代化 ›› 2012, Vol. 208 ›› Issue (12): 80-84.doi: 10.3969/j.issn.1006-2475.2012.12.021

• 网络与通信 • 上一篇    下一篇

一种基于层次的无线传感器网络非均匀分簇路由协议

洪薇,胡健,龚代圣,戴聿雯   

  1. 国网电力科学研究院安徽南瑞继远软件有限公司产品研发部,安徽合肥230088
  • 收稿日期:2012-08-01 修回日期:1900-01-01 出版日期:2012-12-22 发布日期:2012-12-22

A Layer-based Unequal Clustering Routing Protocol for Wireless Sensor Networks

HONG Wei, HU Jian, GONG Dai-sheng, DAI Yu-wen   

  1. Department of Product Development, Anhui Nari Jiyuan Software Co. Ltd. of State Grid Electric Power Research Institute, Hefei 230088, China
  • Received:2012-08-01 Revised:1900-01-01 Online:2012-12-22 Published:2012-12-22

摘要: 针对无线传感器网络中由于多跳通信方式导致的“热区”问题,本文提出一种基于层次的非均匀分簇路由协议。本协议先根据节点到达汇聚节点的距离对网络划分层次,然后在每个层次中通过基于权值的竞选方式产生簇头,在权值的选择上综合考虑了节点剩余能量和位置,最后构建多跳传输路由负责簇内和簇间的数据转发。仿真实验表明,本协议能有效地均衡网络负载和延长网络生命周期。

关键词: 无线传感器网络, 非均匀分簇, 热区

Abstract: In order to mitigate the “hot spot” problem in wireless sensor networks, which is caused by the multi-hop transmission mode, this paper proposes a layer-based unequal clustering protocol. In this protocol, the network is partitioned into several layers based on the distance to the sink of each node. The election of cluster heads in each layer is accomplished by a weight-based distributed competition, which is taken into account the residual energy and position of the candidates. In addition, multi-hop routes are established for both intra-cluster and inter-cluster data transmission. Simulation results show that the proposed protocol is effective in balancing the energy consumption and prolonging the network lifetime.

Key words: wireless sensor networks, unequal clustering, hot spot

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