A Comparative Analysis on the Signaling Load of Proxy Mobile IPv6 and Hierarchical Mobile IPv6

In this paper, we investigate the performance of the proxy mobile IPv6 and compare it with that of the hierarchical mobile IPv6. It is well known that performance of proxy mobile IPv6 is better than that of hierarchical mobile IPv6. For the more detailed performance analysis, we propose an analytic mobility model based on the random walk to take into account various mobility conditions. Based on the analytic models, we formulate the location management cost and handoff management cost. Then, we analyze the performance of the proxy mobile IPv6 and hierarchical mobile IPv6, respectively. The numerical results show that the proxy mobile IPv6 can has superior performance to hierarchical mobile IPv6 by reducing the latencies for location update and handoff.