Distributed local paging scheme for mobility management in mobile IP

In this paper, we propose a new mobility management scheme for Mobile IP that reduces both the total signaling cost and the system sensitivity to many user parameters by configuring sub-paging area within paging area. The analytical results show that the proposed scheme performs better than conventional Mobile IP and P-MIP with different paging area sizes with wide ranges of parameters and even in the case of P- MIP with optimal paging area size, our scheme can considerably save total signaling cost of the optimized P-MIP. Also, our scheme enhances system robustness and decreases sensitivity of the system signaling cost to various parameters.