传感器网络簇间通信自适应节能路由优化算法

  本文关键词：传感器网络簇间通信自适应节能路由优化算法，，由笔耕文化传播整理发布。

第33卷第3期 2012年3月

通 信 学 报 Vol.33 No. 3

Journal on Communications

March 2012

传感器网络簇间通信自适应节能路由优化算法

李文峰，沈连丰，胡静

（东南大学 移动通信国家重点实验室，江苏 南京 210096）

摘 要：提出了一种用于无线传感器网络簇间通信的自适应节能路由优化算法。网络中以总体通信能耗最小为首要原则建立端到端之间的路由，并对簇间通信提出了一种优化算法，使得簇首之间相互通信时，可以在直接、中继以及协作3种不同方式中自适应地选择最节能的通信方式。所提出的路由算法可确保源节点与基站通信过程中选择到最优或次优的节能路由，并可降低由于通信覆盖盲区造成的通信中断的概率。仿真结果表明，与其他传感器网络路由算法相比，所提出的路由算法在相同吞吐量和误码率前提下每一轮都消耗更少的能量，并且在不同的节点密度下都可有效地延长网络的生命周期和工作时间。 关键词：传感器网络；节能；簇间通信；路由

中图分类号：TN915 文献标识码：A 文章编号：1000-436X(2012)03-0010-10

Adaptive energy-saving routing algorithm for inter-clustering communications in WSN

LI Wen-feng, SHEN Lian-feng, HU Jing

(National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China)

Abstract: An adaptive routing algorithm was proposed for saving inter-clustering communication energy in wireless sensor networks (WSN). In the network, the end-to-end route discovery mechanism was based on the primary principle of the minimum communication costs. An algorithm was proposed for inter-clustering communication optimization by adaptively selecting the most energy-efficient communication mode among direct, relaying and cooperative communica-tions. The proposed routing algorithm guarantees that the source node can discover the minimum or sub-minimum energy consumption route to the base station. It also decreases the probability that the communications are interrupted due to the coverage holes. Compared with the other routing algorithms, the simulation results show that the proposed routing algo-rithm makes WSN consume less energy in each round under the same throughput and bit error ratio (BER). It can also prolong the network lifetimes and operation times under the different node densities. Key words: sensor network; energy saving; inter-clustering communication; routing

1 引言

无线传感器网络（WSN, wireless sensor net-

works）是由传感器节点通过无线通信技术自组织构

由大量高度集成的小型传感器节点构成成的网络[1]。

的大规模无线传感器网络，在远程大气监测以及地

收稿日期：2011-07-15；修回日期：2012-01-04

基金项目：国家科技重大专项基金资助项目（2010ZX03006-002-01）；国家自然科学基金资助项目（60872004）；东南大学移动通信国家重点实验室自主研究基金资助项目（2011A08）

Foundation Items: The Important National Science & Technology Specific Projects (2010ZX03006-002-01); The National Natural Science Foundation of China (60872004); The Research Fund of National Mobile Communications Research Laboratory, Southeast University (2011A08)

  本文关键词：传感器网络簇间通信自适应节能路由优化算法，由笔耕文化传播整理发布。