关键词: 延迟容忍网络, 路由机制, 中心度, 活跃度, 消息处理能力

Abstract: In order to forward messages more efficiently in the social oriented Delay Tolerant Network (DTN), this paper proposed a way to be aware of nodes' centralities. This paper came up with a routing mechanism for the awareness of nodes' centralities through a comprehensive analysis of the level of activity and the capacity of handling messages which aimed at quantifying the nodes' centralities. The result shows that compared with the traditional Epidemic routing and Contact Counts (CC) routing which principle is still based on nodes' centrality, the routing mechanism this paper discussed can significantly improve the rate of the message delivery and the rate of the overhead.

Key words: Delay Tolerant Network (DTN), routing mechanism, centrality, active level, message handling capacity