使用变长轮方法改善轮内死亡问题的研究  

Research on improving a problem of the cluster-heads' death in a round using a variable round method

作　　者：陈兰兰[1] 郭晓金[1] 蒋新春[2] 黄宇[1] 

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065 [2]重庆邮电大学计算机学院,重庆400065

出　　处：《计算机应用》2008年第7期1835-1837,共3页journal of Computer Applications

摘　　要：针对基于LEACH以轮为操作单位的算法存在的轮内死亡问题,提出了变长轮的思想,即轮长随网络能量的变化而变化。有效地解决了因轮长过大,导致多数簇头轮内死亡;轮长过小,造成没有必要的能量消耗和频繁的簇头更迭的问题。仿真结果表明:变长轮方法较传统的定长轮方法提高了网络使用效率,增强了网络的可用性。To solve the problem of cluster-heads＇ heath in the LEACH-based algorithms for WSNs, a variable round mechanism was proposed in this paper. It effectively solves the problem that when the rounds last too long, it appears that cluster-heads die in the rounds and when the round time is too small, the overhead energy wastes and the frequent alternation takes place. The simulation shows that the method of variable round enhances the efficiency in energy-consumed and the usability of WSNs.

关 键 词：无线传感器网络 LEACH 轮 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]