Localized Management for Proxy Mobile IPv 6

Proxy Mobile IPv6 is a promising protocol for supporting mobility. Unlike Mobile IPv6, which is based on hostmobility, the Proxy Mobile IPv6 is based on network-based mobility so that it can remove additional implementations on a Mobile Node (MN). Due to this feature, Proxy Mobile IPv6 has been considered as a better protocol than Mobile IPv6 in supporting mobility. However, PMIPv6 still has a limitation, called localized management. All the messages from a MN should go through a Local Mobility Anchor or LMA, which causes the selection of non-optimal path for message exchanging as well as the bottleneck problem. Some previous works applies route optimization mechanisms; however, they are concerned about the data packet only. A little attention has been given to route optimization of both binding message and the data packet. In this paper, to provide safety for the bottleneck problem and shortest path for both binding message and the data packet, we propose the Localized Management support PMIPv6 (LM-PMIPv6) that support localized handover and route optimization using the reactive fast handover mechanism and hierarchical architecture. It enables handover without LMA’s participation and has smaller handover delay and packet delivery cost compared with PMIPv6.