Research On The Information Dissmination Mechanism In Mobile Social Network

Distributed Mobile Social Network(DMSN) is a new network architecture, developed from Delay Tolerant Network (DTN). There does not exist end to end paths in this kind of network, The routing achieves by a "store-carry-forwards " mode. The key issue of DTN routing algorithm is how to effectively forward data and achieve high success rates and lower delivery delay, while ensuring balanced load in intermittently connected network.MSN consisting of the portable short-range communication smart devices constitutes a typical DTN application scenario. The movement and contact of mobile nodes in such self-organizing network usually perform some characteristics of social networks, such as centrality, different strength of relationship and community structure, these network characteristics have an important impact on the network information dissemination. The role of social metrics in the information dissemination process in this paper is based on four real datasets Cambridge, Infocom05, Infocom06, MIT Reality. SimBetTs routing and BubbleRap routing are two classic social-based data forwarding mechanism used in DTN, but SimBetTs routing uses three social metrics linear weighted as utility to forward messages, this mechanism ignores the dynamic nature of Mobile Social network. BubbleRap routing employs centrality metric and community structure during forwarding without the consideration of the strength of the association between nodes.Based on the consideration of social relation and structural characteristics in mobile social network and existing social-based DTN routing, a SimTs-Dynamic Staged Social Routing algorithm(SSSR) for mobile social networks was proposed. This mechanism considered the role of centrality metric, community property and tie strength of social network in the process of information dissemination, identify the dynamic staged position based and forward the data packet on the use of different node sets which converge to the destination divided on different social attributes. The algorithm can effectively improve packet delivery ratio, reduce network latency and control network overhead through the limited range and the routing length of forwarding. For the heterogeneous structure of social network especially the diversity of centrality, the load of Mobile Social Network is unfair, Making full use of social relations in dissemination of information can ensure the load balancing of the network without reducing the performance of routing mechanism...