MOBILITY MANAGEMENT IN CURRENT AND FUTURE COMMUNICATIONS NETWORKS

This article describes current and proposed protocols for mobility man agement for PLMN-based networks, Mobile IF, wireless ATM, and satellit e networks. The integration of these networks is discussed in the cont ext of the next evolutionary step of wireless communications networks. First, a review is provided of location management algorithms for PCS implemented over a PLMN network. The latest protocol changes for loca tion registration and handoff are investigated for Mobile IF, followed by a discussion of proposed protocols for wireless ATM and satellite networks. Finally, an outline of open problems to be addressed by the next generation of wireless network service is discussed.