A Fuzzy Based Approach for Multicast Tree Computation in Wireless Multimedia Networks

Group communication in wireless multimedia networks must consider the Quality of Service (QoS) parameters for efficient and quality aware multicast route computation. QoS parameters such as bandwidth, channel reliability, buffers, delays, jitters, etc. play a vital role in wireless multimedia networks. Multicast tree development for group communication must press for more than one or two QoS parameters for better services. This paper proposes a scheme for constructing a multicast tree based on a spanning tree by employing a fuzzy controller. Fuzzy controller uses three fuzzy input parameters namely, link bandwidth, link delay and link reliability for the construction of multicast spanning tree. The scheme is simulated to test its effectiveness in terms of multicast tree computation time, iterations required for multicast tree computation, packet delay and packet delivery ratio.