Routing Protocol Based on Mission-Oriented Opportunistic Networks

Abstract

AbstractMission-oriented opportunistic networks are a new form of network. Its application background is to complete specific tasks. Its prominent feature is Mission-oriented mobility. This paper, based on the goal-driven mobility model of human nodes in the established Mission-oriented opportunistic networks, proposes a routing protocol based on multi-dimensional trust evaluation parameters (MTEPRP). Firstly, contact intimacy, delivery credibility and location intimacy are selected by the routing protocol as the direct-trusting multi-dimensional trust evaluation parameters to calculate the direct trust value of the nodes, and the weight coefficient of the direct trust value is adjusted by grey relational analysis algorithm. Then, contact intimacy and delivery credibility are selected to calculate the recommended-trusting multi-dimensional trust evaluation parameters, which uses the collaborative computing technology and joint multi-nodes to calculate the recommendation trust values. Finally, the total trust values of nodes are calculated by fusing direct trust values and recommendation trust values. This paper transforms a routing problem for dynamic moving and unstructured space is transformed into a routing problem for static and structured multi-dimensional trust evaluation parameter space by adopting the data forwarding strategy of comparing multi-dimensional trust evaluation parameters. Experimental results show that compared with Epidemic and Prophet routing protocol, the MTEPRP proposed in this paper has better performance in network transmission success rate, data transmission delay and routing overhead.KeywordsMission-oriented opportunistic networksRouting protocolMulti-dimensional trust evaluation parametersGrey relational analysisCollaborative computing