On low-cost global mobility management for heterogeneous mobile networks

This paper proposes a low-cost global mobility management architecture and protocol procedure called LC-GM², which is based on Proxy Mobile IPv6 (PMIPv6) networks. The benefit is the elimination of the wireless link data delivery tunnel overhead between a mobile node and the access router. To compare with the well-known Hierarchical Mobile IPv6 (HMIPv6) mobility management protocol and Global Mobility Management Architecture and Protocol Procedure (GPMIP), the location update, packet delivery, and total cost functions generated by a mobile node during its average domain residence time are formulated for each protocol based on Fluid-flow mobility model. Then, the impacts of various system parameters on the cost functions are analyzed. The analytical results show that the proposed global mobility management protocol can guarantee the lowest total costs.