EFMMRP: Design of efficient fuzzy based multi-constraint multicast routing protocol for wireless ad-hoc network

Mobile Ad-hoc Network (MANET) is a temporarily wireless network constructed by a set of mobile devices which are communicated over wireless channel without having any fixed infrastructure and centralized administration. Multicasting is a mechanism to send a data packet from one node to a group of receivers node at a time. There are various challenges in a MANET due to dynamic network topology and limited resources. Since the network performance metrics such as delay, bandwidth and energy changes very frequently due to node mobility i.e. these network metrics have the uncertainty issues in a wireless mobile ad-hoc network. The impact of these uncertainty issues creates a problem in the selection of optimal path from source node to a group of receiver nodes. So, in this paper, we have tried to control these uncertainties issues in order to conserve the network resources using fuzzy logic tool. In this mechanism all the available network metrics of the routes is converted into a single metric i.e. fuzzy cost or communication cost. The routes having minimum fuzzy cost will be considered as optimal path and the data is to be transmitted over this path from source node to a set of receivers. The simulation has been conducted using NS-2 and MATLAB, the results shows the effectiveness of the proposed protocol (EFMMRP) over ODMRP and MAODV in terms of pacaket delivery ratio, packet delivery delay and control overhead.