Overview of Various Opportunistic Routing Protocols

ABSTRACT Different opportunistic routing protocols have been proposed recently for wireless networks. Candidate selection and prioritization are the two key issues that need to be addressed by any opportunistic routing scheme. Solving these issues needs to consider routing efficiency, protocol overhead, and compatibility with existing MAC protocols, use of network state information, location information, and use of coding function. By taking these factors as well as different design strategies into consideration, we are going to overview major OR protocols such as ExOR, MORE , SOAR along with some Multicast Opportunistic Protocol i.e. Ad-hoc Multicast Routing (AMRoute), Node State Multicasting protocol (NSM) and Robust and Scalable Geographic Multicast Protocol (RSGM).