无线传感器网络中一种基于标记的能量平衡路由  

A label-based energy-balanced routing for WSNs

作　　者：侯贵升[1] 吴晓蓓[1] 黄成[1] 徐志良[1] 

机构地区：[1]南京理工大学自动化学院,江苏南京210094

出　　处：《传感器与微系统》2014年第7期116-118,122,共4页Transducer and Microsystem Technologies

基　　金：教育部博士点基金资助项目(20113219110028)

摘　　要：为实现数据的高效传输和网络生命期的最大化,提出了一种基于标记的能量平衡(LBEB)路由。该路由先向网络中嵌入多棵独立最短路径树,以构建一个虚拟树型标记系统,然后基于此标记系统设计针对不同数据类型的转发策略:紧急数据使用贪婪策略转发以保障其时延要求;而平常数据则综合考虑邻居节点的负载和剩余能量情况使用平衡策略转发以缓解拥塞并均衡节点能耗。2种策略相辅相成,共同完成预期目标。仿真结果表明:LBEB能以适量开销获得较好的路由性能,并且能在满足数据时延要求的同时均衡网络能耗从而使网络生命期最大化。In order to realize high efficient data transmission and maximization of network lifetime,propose a label-based energy-balanced（ LBEB） routing.First of all,the routing embeds multiple independent shortest path trees into the network to construct a virtual tree-label system,then,based on the label system,different forwarding strategies aiming at different data types are designed： emergency data adopts greedy strategy forwarding to guarantee its time-delay requirement; and common datas use balance strategy forwarding,considering loads of neighbor nodes and residual energy,to alleviate congestion situation and balance energy consumption of nodes.Two strategies complement each other,and accomplish desired goals together.Simulation results show that LBEB can get good routing performance with suitable amount of overhead,and guarantee time-delay requirement of data at the same time balance the network energy consumption to maximize the network lifetime.

关 键 词：无线传感器网络 标记系统 贪婪转发 负载平衡 能量平衡 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]