ELGR:An Energy-efficiency and Load-balanced Geographic Routing Algorithm for Lossy Mobile Ad Hoc Networks  

有损链路环境下移动Ad Hoc网中一种具有能量效率和负载均衡的地理路由算法(英文)

作　　者：王国栋[1] 王钢[1] 

机构地区：[1]北京航空航天大学电子信息工程学院

出　　处：《Chinese Journal of Aeronautics》2010年第3期334-340,共7页中国航空学报（英文版）

基　　金：Foundation for Innovative Research Groups of the National Natural Science Foundation of China (60921001);National Science Foundation for Distinguished Young Scholars of China (60625102);National Natural Science Foundation of China (60972007)

摘　　要：Geographic routing is a highly active area of research in mobile ad hoc networks （MANETs） owing to its efficiency and scalability. However,the use of simple greedy forwarding decreases the packet reception rate （PRR） dramatically in unreliable wireless environments; this also depresses the network lifetime. Therefore,it is important to improve delivery performance and prolong MANET lifetime simultaneously. In this article,a novel geographic routing algorithm,named energy-efficiency and load-loalanced geographic routing （ELGR）,is presented for lossy MANETs. ELGR combines energy efficiency and load balance to make routing decisions. First,a link estimation scheme for the PRR is presented that increases the network energy efficiency level. Second,a learning method is proposed to adaptively sense local network loads,allowing enhanced whole network load balance. The results of a simulation show that ELGR performs better than several other geographic routing algorithms; in particular it extends network lifetime by about 20%,with a higher delivery ratio.Geographic routing is a highly active area of research in mobile ad hoc networks （MANETs） owing to its efficiency and scalability. However,the use of simple greedy forwarding decreases the packet reception rate （PRR） dramatically in unreliable wireless environments; this also depresses the network lifetime. Therefore,it is important to improve delivery performance and prolong MANET lifetime simultaneously. In this article,a novel geographic routing algorithm,named energy-efficiency and load-loalanced geographic routing （ELGR）,is presented for lossy MANETs. ELGR combines energy efficiency and load balance to make routing decisions. First,a link estimation scheme for the PRR is presented that increases the network energy efficiency level. Second,a learning method is proposed to adaptively sense local network loads,allowing enhanced whole network load balance. The results of a simulation show that ELGR performs better than several other geographic routing algorithms; in particular it extends network lifetime by about 20%,with a higher delivery ratio.

关 键 词：MANET geographic routing energy efficiency load balance FORWARDING 

分 类 号：TN929.5[电子电信—通信与信息系统]