RFHP: Robust Fast Handover Protocol in Hierarchical Mobile IPv6 networks

The hierarchical mobile IPv6 (HMIPv6) has been proposed by IETF to reduce registration control signaling. It separates micro-mobility from macro-mobility with the help of an intermediate mobility agent, called the mobility anchor point (MAP), and exploits a mobile node´s (MN´s) spatial locality. However, in HMIPv6, the handover process reveals numerous problems manifested by the latency in configuring a new care-of address and confirmation scheme called duplicate address detection. In this paper, we propose robust advanced hierarchical mobile IPv6 (AH-MIPv6) scheme. The proposed scheme can reduce the latency taken by the movement detection, address configuration and confirmation, registration from the whole handover latency. The other contribution of this paper is to suggest a mathematical modeling and handover latency for standard MIPv6, HMIPv6 and the proposed AH-MIPv6 scheme.