Springer-Verlag Lecture Notes in Computer Science, vol. 2668, pp. 144-154, May 2003 (SCI)
DaeKyu Choi, Hyunseung Choo, and Jong-Koo Park
Recently MIP becomes more important for the macro mobility support in the emergence of the global system such as IMT-2000. However this protocol suffers from many weaknesses on the location management. MIPv4 regional registration is presented for the local registration of MNs. MIPv6 can benefit from the reduced mobility signaling with external networks by employing a local MAP, that is called HMIPv6. The total signaling cost of HMIPv6 is rapidly increased by the number of CNs of an MN when the MN moves around between MAPs. In this paper, we propose a new location management scheme in MIPv6 that reduces the total signaling cost in the location update based on HMIPv6. Here the MN does not send the BU to CNs and HA when it moves around between MAPs. Instead it informs the current location by transferring the modified BU to the previous MAP. According to the results of the performance analysis, we determine the upper bound for the number of forwarding links allowed among adjacent MAPs without the BU information.