An Improved DAD Check Scheme MLD-Based in FHMIPv6

The HMIPv6 protocol has been proposed as an improved technology of MIPv6 to solve the problem that the handover management mechanism between macro-mobility and micro-mobility. But a majority of handover latency is occupied by DAD check of RCoA and LCoA, by which handover efficiency has been affected badly. Therefore, in this paper it is proposed a DAD Check scheme MLD-Based and the realized process of arithmetic has been described in theory. It is proved that the handover arithmetic has been optimized, handover efficiency has been enhanced and the mobility management has been improved by NS-2 simulation. Keyword-DAD check; MLD; HMIPv6; mobility management;