自私性移动机会网络中数据的高效转发机制

Efficient data forwarding mechanism in mobile opportunistic networks of selfish

针对如何在自私性移动机会网络中进行高效的数据转发,提出了基于节点社会合作度的转发机制。该算法通过研究用户运动的社会特性,利用经济学中的节点信任等级的方式解决网络中存在自私节点的问题,并通过综合评价节点的用户相似度、信任度和缓存等信息,选择社会合作度大的中间代理进行数据的转发,使信息始终沿着网络中社会合作度高的方向传输。仿真结果表明,该机制可以有效提高消息的传输成功率,相对降低网络延迟,减小网络资源的耗费。

This paper proposed an efficient forwarding mechanism based on the degree of social cooperation of nodes to solve how to efficiently forward data in selfish opportunistic mobile network.By studying the social characteristics of user＇s movement,the algorithm took advantage of the method of trust level in economics to deal with the problem of selfish nodes,and according to comprehensive evaluation of the information of user similarity,credibility and cache information etc.to select the node which had a high social cooperation degree acts as intermediary broker to forward the data,so that the data was transmitted always along with the direction of higher value of cooperation degree.Simulation results show that the mechanism can effectively improve the success rate of message transmission and relatively lower delivery delay,and also reduce the resource consumption of network.