A comparative signaling cost analysis of Hierarchical Mobile IPv6 and Proxy Mobile IPv6

In this paper, we present a comparative signaling cost analysis of hierarchical mobile IPv6 and proxy mobile IPv6. The two mobility support protocols have a similar hierarchical mobility management architecture. They, however, are clearly different: Hierarchical mobile IPv6 has a specific properties of host-based mobility support protocol and proxy mobile IPv6 is a kind of network-based mobility support protocols. Thus, it is important to reveal their mobility characters and performance impact factors. In this paper, we develop a cost model that evaluates the location update cost and the packet delivery cost based on protocol operations. Then, we present the numerical results in where the impacts of various system parameters are evaluated.