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改进的A*算法在Ad Hoc网络中的应用
引用本文:王仁红,廖惜春,郭洪威.改进的A*算法在Ad Hoc网络中的应用[J].五邑大学学报(自然科学版),2011,25(2):38-42.
作者姓名:王仁红  廖惜春  郭洪威
作者单位:五邑大学,信息工程学院,广东,江门529020
摘    要:针对Ad Hoc网络拓扑结构频繁变动,已有路由的有效时间短、丢包率高等问题,将改进的A*算法应用于Ad Hoc网络实现路由查找,利用NS2仿真,将A*算法与传统的AODV、DSR路由算法在丢包率、传输速率、平均端到端时延、算法开销等4个方面进行性能比较,仿真结果表明:A*算法在源节点与目的节点间寻找路由的过程中,能够快速而准确地建立路由,在路由速度、发包成功率等方面有明显的提升.

关 键 词:Ad  Hoc网络  A*算法  路由查找  发包成功率

A Study of the Application of the A* Algorithm in Ad Hoc
WANG Ren-hong,LIAO Xi-chun,GUO Hong-wei.A Study of the Application of the A* Algorithm in Ad Hoc[J].Journal of Wuyi University(Natural Science Edition),2011,25(2):38-42.
Authors:WANG Ren-hong  LIAO Xi-chun  GUO Hong-wei
Affiliation:WANG Ren-hong,LIAO Xi-chun,GUO Hong-wei(School of Information Engineering,Wuyi University,Jiangmen 529020,China)
Abstract:In light of the frequent structural changes of the Ad Hoc network topology,short duration of the effective route and the high packet loss rate,we applied the improved A* Algorithm to the Ad Hoc networks to achieve routing lookup.We compared the A* Algorithm and the traditional AODV and the DSR routing algorithms using NS2 simulation in the four aspects of algorithm performance: packet loss rate,transmission rate,average end to end delay and algorithm overhead.Simulation results show that the A* algorithm ca...
Keywords:Ad Hoc network  A* algorithm  routing lookup  packet-sending success rates  
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