Multicast routing considering reliability and network load in wireless ad-hoc network

Several multicast protocols have been newly proposed to perform multicast in wireless ad hoc networks. Tree based multicasting is fragile and requires frequent control to maintain multicast tree. Mesh based multicasting is reliable but increases network load by flooding through mesh. We propose a hybrid structure of tree and mesh for multicasting in wireless ad hoc networks. We assume that the system can predict the connection holding time between each upstream and downstream node by using the location and mobility information provided by GPS (Global Positioning System). The proposed scheme is more reliable than tree based scheme and reduces network load