ABSTRACT

In this paper, we propose a new location management scheme where the trace of terminals is left in the VLRs, so that a call can be connected by querying only to the VLRs rather than to the HLR when the terminal-terminated-call occurs. To estimate overall mobility management cost, the simulation model is based on the Jackson’s network, and makes it possible to estimate mobility management cost of IMT-2000 networks. Considering both location registration cost and call tracking cost, the proposed scheme shows the improvement.