Handover Efficiency Improvement in Proxy Mobile IPv6(PMIPv6) Networks

AbstractThe Internet Engineering Task Force proposed a Network based Local Mobility Management (NETLMM) scheme called Proxy Mobile IPv6(PMIPv6) to provide efficient mobility support for the IPv6 enabled nodes, without the involvement of the nodes themselves. Here the burden of maintaining the mobility is transferred from Mobile Nodes(MNs) to the networking architecture. But frequently moving MNs suffered from considerable latency and packet loss during handovers even within the PMIPv6 domain. The number of signalling messages required for handover was also high. A communication state dependent chaining scheme is used in this paper to meet these inherent drawbacks of PMIPv6 domain and is called the Chaining Based PMIPv6(CB-PMIPv6). Here the Mobility Access Gateways(MAGs) are chained to support movements within the PMIPv6 domain. Packet loss is mitigated by using a buffering scheme and handover latency is reduced with the help of a triggering scheme