Developing Trust Management Based Routing Protocol for Delay Tolerant Network

Abstract

DTN works on the principle of storing, carrying and then forwarding a message to one of its intermediate contacts. The intermediate node must be chosen in a way that it optimally delivers to the ultimate destination node. Routing strategies of conventional networks like TCP/IP have stable links, thus these are generally not suitable for deployment in DTN. newline The complete information of an end-to-end path is low. Also, with limited node resources routing in Therefore, routing in DTN is an active research problem. In the past several DTN routing protocol with objective of high delivery ratio with minimal overhead, targeting utilization of network resources have been proposed. Trust is firm belief in the reliability, truth or ability of someone or something . It is subjective in nature. As we see in the real world, all human beings since their birth train themselves, slowly and gradually to trust their close/ extended family or friends circle to have faith/belief on others. The degree of trust begins from neutral value to either positive or negative side with the learned behavior in communication over years of interactions. With no universal code of behavior among human beings, an important aspect such as Trust is incorporated in their action and life decisions. Thus the Trust is incorporated in routing decision for DTN. Trust value is used to build and communicate effective DTN network. Such routing protocol based on Trust Management can be used to share information on the go. The network may learn from the Trust metric over the period of time to deliver messages in socially active DTNs. The implementation of Trust to route in DTN is completely a novel approach. The thesis is a compilation of the extensive experiments performed in ONE to evaluate and validate results with other routing schemes. newline newline