机会网络中基于活跃度的主动拒绝路由算法  

Activity-based Routing Algorithm in Opportunistic Network with Active Denial

作　　者：鲁丽[1] 张采芳[1] 廖剑锋[1] 

机构地区：[1]华中科技大学文华学院,湖北武汉430074

出　　处：《电视技术》2014年第15期147-151,共5页Video Engineering

基　　金：湖北省自然科学基金项目(2013CFC113)

摘　　要：针对机会网络Epidemic路由算法投递率较低的问题,提出了基于活跃度的主动拒绝路由算法。该算法根据节点转发能力和投递能力估算节点活跃度,缓存不足时,节点基于活跃度拒绝或接收新消息。在ONE仿真平台上实现了该算法,仿真结果表明,此算法能有效地减少消息抛出现象,在传输延迟没有明显增加的情况下,改进后的算法能够提高投递率,降低投递开销。In view of the low delivery ratio of Epidemic routing in opportunistic networks, an improved activity-based routing algorithm with active denial is put forward in this paper. The algorithm estimates active degree by forwarding and delivery ability. Incoming messages are refused or received based on active degree. The simulating results in the ONE platform prove that the proposed algorithm can effectively suppress throw-out effect and improve the delivery rate and reduce the overhead ration without obvious addition of latency.

关 键 词：机会网络 活跃度 主动拒绝 路由算法 

分 类 号：TN92[电子电信—通信与信息系统]