This paper analyzed the current multicast systems＇construction scheme,and propose a novel construction scheme for Appli- cation- Layer Multicast system by fully utilizing existing communication facilities in the mobile environment. At the scheme, we build and maintain a multicast-tree with the NICE protocol. Also, in order to ensure the multicast systems＇stability, we modify the failure re- covery mechanism of the NICE protocol ,which uses the heart detection mechanism to detect the node＇s left resulting in high latency. By using the propose...
