Research of Source Mobility of Source Specific Multicast

摘要

Currently online audio/video applications gradually expanding into the mobile world, Source Specific Multicast (SSM) will globally disseminate to many users of multicast infrastructure and services. Tree morphing protocol is adaptive to SSM source mobility, but extra-encapsulated data lead to network overload and non-optimal routing algorithm to delay. In this paper we present and discuss an improved protocol. We use network simulation tool NS-2 to complete the improved protocol, and compare with tree morphing protocol, convergence time of our method is shorter.