消息副本动态感知的机会网络路由算法

Message Copy Dynamic Perception Routing Algorithm for Opportunistic Networks

在多副本的机会网络路由算法中,副本数量多的消息发送机会要多于副本数量少的,消息发送机会的不平衡影响网络中消息投递率。针对上述问题,提出一种消息副本动态感知的机会网络路由算法;该算法根据消息产生的副本数和消息被节点接收的时间两个特征,利用接收节点所设置的接收消息的门限,控制消息的转发和消息副本的删除。仿真结果表明,该路由是一种简单有效的路由算法。与传统的传染路由和概率路由相比,该路由在消息投递率、平均延迟时间和开销方面比上述两个路由协议的性能更好。

In multiple-copy routing algorithm for opportunistic networks,message with more copies has a better chance to be forwarded than message with less copies,and the unbalance message forwarding influences the deliver ratio. In view of the above question,a routing algorithm based on Message copy dynamic perception is proposed for opportunistic networks. According to the number of message copies and the time of message received,and using the threshold for control receiver message set by receiver node,control message forward and delete message duplicate.The simulation result shows that,the proposed route is a simple and effective routing algorithm,and compared with traditional epidemic routing and probabilistic routing,the routing scheme has better performance in the delivery ratio of packets,the average delay time and the overhead.