无线传感器网络冗余节点休眠调度算法  

Wireless sensor network redundancy node sleep scheduling algorithm

作　　者：温涛[1,2] 张冬青[1,2] 郭权[2] 宋晓莹[1] 

机构地区：[1]东北大学软件中心,辽宁沈阳110819 [2]大连东软信息学院计算机科学与技术系,辽宁大连116023

出　　处：《通信学报》2014年第10期67-80,共14页Journal on Communications

基　　金：国家自然科学基金资助项目(61170169;61170168)~~

摘　　要：提出一种冗余节点休眠调度算法来延长网络生命周期。调度过程中重点考虑两方面问题:一是采取策略防止大量节点同时从工作状态转入休眠状态以防止大量盲区同时产生;二是根据邻居表中节点的工作邻居数量,判定节点是否处于网络边界,对边界节点和内部节点采用不同的调度策略,防止边界收缩。仿真结果表明,算法能有效延长无线传感器网络的生命周期。A scheduling algorithm for redundant nodes is proposed to effectively prolong the lifetime of WSN. The algo-rithm focuses on two problems. One is to prevent a large number of nodes shifting at the same time from working stateinto sleeping state to avoid the appearance of blind areas, the other is to employ different scheduling strategies on bordernodes and internal nodes to avoid contraction of the network boundary by judging whether a node is on the networkboundary according to the number of working nodes in its neighbor table. The simulation results show that the algorithmcan effectively prolong the lifetime of WSN.

关 键 词：无线传感器网络 冗余节点休眠 监测盲区 网络边界收缩 网络生命周期 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]