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《Computer Science》 2014-09
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Research on Routing Algorithm of Semantic-based Publish/Subscribe System over P2P Networks

ZHANG Qiang;LI Jian-hua;SHEN Di;School of Information and Navigation,Air Force Engineering University;  
Constructing semantic publish/subscribe system based on structured P2 Pnetwork is research focus in recent years.The paper proposed a new semantic event routing algorithm based on Chord,which uses routing strategy based on rendezvous node.Firstly,the mapping from subscriptions to event broker rendezvous nodes is achieved using hash function with semantic reserved.Secondly,the algorithm just publishes events to the subscription rendezvous nodes which may be matched based on semantic information between subscriptions and events,and delivers notifications using the subscription spanning tree based on Chord routing protocol.At last,load balancing is realized through transferring subscriptions between overload rendezvous nodes.Simulation shows that to some extent,the algorithm reduces resource consumption,improves efficiency,and reaches load balance.
【Fund】: 全军军事学博士研究生课题(2012JY003-583)资助
【CateGory Index】: TP393.02
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