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Agent based Multicast Handoff Mechanism for All-IP Wireless Network  

Kim, Byung-Soon (Dept.of Computer Information, Daegu Technology College)
Han, Ki-Jun (Dept.of Computer Engineering, Kyungpook National University)
Publication Information
Journal of KIISE:Information Networking / v.29, no.2, 2002 , pp. 197-203 More about this Journal
Abstract
This paper proposes a new agent based mechanism called a Multicast Handoff Agent (MHA) to reduce handoff latency for IP multicast. The MHA acts as a proxy for an Internet Group Management Protocol (IGMP) of Mobile Nodes (MNs) at each Base Station (BS) and keeps information for members of multicast groups in a cell. When an MN moves to a next cell, the MHA immediately sends unsolicited reports without waiting for the IGMP query. The mechanism was evaluated through simulation and analysis and compared with the IGMPv2 for micro-mobility and the IGMP traffic. Simulation results show that handoff latency for micro-mobility can be largely reduced and the IGMP control traffic on the wireless links during the duration of membership can be eliminated. Thus, this mechanism is superior to the existing mechanism in both micro-mobility and battery duration, as the need not to reply to a query conserves battery power.
Keywords
MHA; IGMP; MHA; Multicast Handoff; micro-mobility; IGMP; IP multicast;
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