Seamless Mobility of Senders Transmitting Multi-user Sessions over Heterogeneous Networks
WWIC 2009 Proceedings of the 7th International Conference on Wired/Wireless Internet Communications
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In this paper, we propose an innovative informationdelivery service on intelligent transport systems (ITS),which enables users to see their future vision deliveredfrom users at further points along the route. This servicerequires special multicast and mobile routing schemes. Wehave developed a source mobility support multicast(SMM) technique that guarantees consecutivecommunication in high-speed mobile environments andminimizes the overhead in reconstructing multicast trees,which is caused by a source movement. SMM is based ona new concept where multicast tree is constructed overCellular IP network, in which a source point tree anda rendezvous point tree are combined into one multicasttree. SMM provides wide operability by partitioning thenetwork and confining protocol uniqueness andtopological constraints within the local access networks.This paper shows our design of SMM architecture and itsdetail protocols.