一种基于AODV的节能安全路由改进方案
首发时间:2009-04-17
摘要:能源问题对于无线Ad hoc网络来说是非常重要的。AODV路由协议因简单和控制开销小而广泛用于无线Ad hoc网络,但是没有任何安全机制保障。本文以一种基于单向哈希函数的哈希链算法为基础,提出一种适合按需路由协议的节能安全路由改进方案,对其安全性和节能性进行了分析,并在ns-2仿真平台下对用该方法改进的AODV路由协议,与传统AODV和SAODV路由协议进行了比较和验证。仿真结果表明,改进后的AODV路由协议在保证安全性能的前提下,以较小的系统开销为代价取得了较高的节能效果和较小网络传输时延。
关键词: 无线Ad hoc网络 AODV 哈希链算法 安全 节能
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An Improved Power Efficient Method for Securing AODV Routing Protocol
Abstract:Energy issue is very important for the wireless Ad hoc network. AODV protocol is widely used in wireless Ad hoc network for its simple and lower overhead, but vulnerable to attacks for the lass of security mechanism. An energy efficient and security enhancement method based on one-way Hash-chain algorithm was proposed for AODV routing protocol, which can be proved secure and energy efficient. AODV protocol applied such improvement method was simulated in ns-2 simulator, with comparison to the basic AODV and SAODV. The results show that the improved protocol can obtain the same security, higher energy efficiency and lower routing packet delay by sacrificing very small overhead.
Keywords: wireless Ad hoc network AODV Hash-chain security energy efficiency
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