An Approach to Support IP Multicasting in Networks with Mobile Hosts

摘要

It is an efficient way for a mobile host to obtain multicast serve via a local multicast router on the visited network. However, there is a possibility for a temporary disruption of multicast service due to the join latency and other issues in handoff procedure. This paper proposes a scheme to solve such a problem. A smooth handoff mechanism is introduced to avoid unnecessary data loss. Besides, any mobility agent capable of multicast can be appointed to provide service to mo- bile hosts, which makes it possible to deploy the protocol widely. Discrete-event simulations were conducted to survey the performance of the proposed scheme. The simulation results show that the scheme has better performance than the compared approaches.