MIPv6 Seamless Handover with Light Home Agent

摘要

Mobile IPv6 enables network nodes to roam in the IPv6 Internet. It is the main protocol for mobile Internet. Supported by Mobile IPv6, the Internet node can roam regardless of its changing of IP address. However during Mobile IPv6 handover procedure, the Internet node has a period of communication interruption. Thus the mobile Internet system has handover latency and packet loss. Also because Home Agent (HA) is in charge of registration of Mobile Node (MN) and tunneling packets for MN, it potentially has overflow problem. These three problems are especially obvious in multimedia networks with many users. So in this article, we propose a new Mobile IPv6 handover method to reduce handover latency and packet loss, and to overcome overflow of HA. We have evaluated the proposed handover method over IEEE 802.11b wireless LAN system by using NS2 simulation platform, and confirmed the effectiveness of the new method.