Case Based And Fuzzy Methods On-Demand Multicast Routing Protocol For Mobile Ad-Hoc Networks

Abstract

Mobile Ad-hoc Network is a self-organizing and self-configuring network without the need of any centralized base station. Each node participating in the networks acts as host as well as router in order to transmit, receive and forward packets. Multicast routing in MANETs is mainly used for group oriented computing, which is an efficient method to lead data packets from one source group to several nodes as destination group. It can reduce communication costs, processing overhead and delivery delay. Although multicast routing algorithms in MANETs could be efficient in many situations, but their forwarding structure and network resource consumption makes them significantly less efficient than unicast routing algorithms. In this thesis work fuzzy logic method is used to create small, strong forwarding group and case based method is used to restrict the domain of control packet flooding so as to reduce the overhead. The combination of above two methods is applied to On-demand multicast routing protocol (ODMRP). An ns-2 simulation study performed and our results revealed that the resultant increases packet delivery rate reduces average end-to-end delay.