关键词: 移动社会网络, 社会合作度, 个体合作度, 网络贡献, 相互贡献

Abstract:

Most of existing works for routing in mobile social networks assume that nodes are all cooperative and willing to forward data for other nodes. However, nodes often behave selfishly in mobile social networks because nodes are controlled by people, whom are selfish in real world, especially when the nodes are lack of resources. Node selfishness degrades network performance dramatically. In this paper, a Cooperation and Contribution based Selfish Routing（C2SR） protocol  is proposed. C2SR chooses the next hop according to the degree of the cooperation and contribution of the candidate nodes. The cooperation includes social cooperation, decided by the social relations of the node, and individual cooperation, determined by the residual resources of the node. The contribution includes network contribution and reciprocal contribution. The candidate node who has higher cooperation with the destination node and less contribution is more suitable to be the next hop. Simulation results show that C2SR performs better than SSAR and ANT protocols.

Key words: mobile social networks, social cooperation, individual cooperation, network contribution, reciprocal contribution