基于发布订阅的多播路由协议网络仿真
首发时间:2009-02-20
摘要:本文通过深入研究Ad-hoc网络中的多播路由协议ADMR (Adaptive Demand-Driven Multicast Routing),将其与发布/订阅机制相结合,提出了一种适应发布/订阅分布式网络的发布订阅多跳路由协议PSMR (Publish/Subscribe Multihop Routing),该协议在ADMR路由策略基础上采用发布/订阅匹配过滤算法,将发布者发布的数据分发相匹配的订阅者,从而大大减少网络中无效数据的转发,提高了网络资源利用率。本文使用NS-2仿真平台实现了该协议,并将其与ADMR协议进行了性能比较,仿真结果证明,PSMR协议在信息成功传送概率不变的情况下,减少了网络中包的转发次数,提高了网络效率。
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Network Simulation of Multicast Routing Protocol Based on Publish/Subscribe
Abstract:In this paper, the Ad-hoc multicast routing protocol ADMR (Adaptive Demand-Driven Multicast Routing) is researched deeply, and a kind of routing protocol called PSMR (Publish/Subscribe Multihop Routing) which is adapted to publish/subscribe distributed network is presented by integrating ADMR and publish/subscribe system. This protocol adds the publish/subscribe match algorithm to ADMR routing strategy and distributes the publisher’s data to relevant subscribers. This protocol PSMR is simulated by NS-2 and is compared with ADMR in some performances. Simulation conclusion shows that PSMR can greatly reduce the number of packet transmission and enhance the mobile Ad-hoc network overall efficiency.
Keywords: publish/subscribe multicast routing protocol ADMR PSMR
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