Publication

Abstract : This article describes an optimal mobility management solution for next generation wireless IP-based networks. It has been found earlier that hierarchical architectures prove advantageous in minimizing signaling overhead, but our ultimate goal is to find out the optimum hierarchy level, which should provide best performance in terms of networks parameters like signaling overhead, handoff latency and frequency of location updates. For this purpose an ntiered architecture has been considered and optimality test on the number of tiers has been performed. Analytical and simulation (using ns-2) results have been provided to establish that three-tiered architecture is the optimal one. A comparative analysis of the proposed three-tiered architecture called Three Level Mobility Model (TLMM) with other existing hierarchical network architectures forms an important aspect of this paper.