International Association of Scientific Innovation and Research (IASIR)
Now-a-days, the wireless communication is subjected to rapid changes due to its portability, convenience and energy constrained operation. Opportunistic networks are one of the most interesting evolutions of MANETs that is a part of wireless communication. It is an upcoming and promising research field in one of the evolution of wireless multi-hop ad-hoc networks. The design of efficient routing and data forwarding protocol in context of opportunistic network is usually a big challenge due to unpredictable topology. In this paper, the authors provide a survey of main routing and data forwarding protocols in context of opportunistic networks and then analyze their performance on different parameters.