基于能量的无线传感器网络拓扑发现算法改进  

An Improved Topology Discovery Arithmetic Of Wireless Sensor Network Based On The Factor Of Energy

作　　者：关学忠[1] 赵立印[1] 孙胜勇[1] 郭小勇[1] 刘传家[1] 

机构地区：[1]大庆石油学院

出　　处：《传感器世界》2008年第2期43-46,共4页Sensor World

摘　　要：对于自组织的无线传感器网络而言,网络拓扑控制对网络性能影响很大。良好的拓扑结构能够提高路由协议和MAC协议的效率,为数据融合、时间同步和目标定位等很多方面提供基础,有利于延长整个网络的生存时间。本文提出了一种基于能量因素的无线传感器网络拓扑发现算法,该算法是以TopDisc算法为基础,在此基础上考虑根据节点的剩余能量控制等待转发时间,在响应拓扑发现请求时把节点自身的剩余能量考虑在内,与距离加权后影响邻节点的发送时延,即对算法的时延机制进行改进。For the self- organizing wireless sensor network, the control of network topology will effect capability greatly. A well topological structure will improve the efficiency of routing protocols and MAC protocols, which could provide foundation for data fusion, time synchronism, object location and so on, that is better for prolonging the lifetime of the whole network. An improved topology discovery arithmetic of wireless sensor network based on the factor of energy is put forward. Based on the TopDisc arithmetic, the arithmetic controls the time lag of transmit time on the basis of dump energy, takes dump energy of nodes into consideration when responding the request of topology discovery, effects the delay time of neighborhood node after be weighted with distance .That means the time delay of the arithmetic is improved..

关 键 词：无线传感器网络 TopDisc算法 剩余能量 

分 类 号：TN929.5[电子电信—通信与信息系统] TP212.9[电子电信—信息与通信工程]