Optimization of a database hierarchy for mobility tracking in a personal communications network
Performance '93 Proceedings of the 16th IFIP Working Group 7.3 international symposium on Computer performance modeling measurement and evaluation
Local anchor scheme for reducing signaling costs in personal communications networks
IEEE/ACM Transactions on Networking (TON)
Reducing location update cost in a PCS network
IEEE/ACM Transactions on Networking (TON)
Dynamic hierarchical database architecture for location management in PCS networks
IEEE/ACM Transactions on Networking (TON)
Analysis of mobile-assisted adaptive location management strategy
Mobile Networks and Applications - Special issue: routing in mobile communications networks
Mobile users: to update or not to update?
Wireless Networks
Intersystem location update and paging schemes for multitier wireless networks
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Interoperability between UMTS and cdma2000 networks
IEEE Wireless Communications
Critical issues for roaming in 3G
IEEE Wireless Communications
A dynamic location management scheme for next-generation multitier PCS systems
IEEE Transactions on Wireless Communications
Overview of the GSM system and protocol architecture
IEEE Communications Magazine
User mobility modeling and characterization of mobility patterns
IEEE Journal on Selected Areas in Communications
A new signaling protocol for intersystem roaming in next-generation wireless systems
IEEE Journal on Selected Areas in Communications
A fully distributed location registration strategy for universal personal communication systems
IEEE Journal on Selected Areas in Communications
A caching strategy to reduce network impacts of PCS
IEEE Journal on Selected Areas in Communications
Hybrid Scheme with Adaptive Replication and Mobility Anchoring Point (MAP) in Wireless Networks
Wireless Personal Communications: An International Journal
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Given the increasing demand for international roaming, it is very important to manage the location of roaming subscribers efficiently and cost-effectively. When a mobile user requires location registration in a roaming network, many signaling messages are involved in the intersystem location management between the home and the roaming networks. This complicated signaling procedure may cause roaming latency and the drop of active calls. We propose a new intersystem location management scheme, based on the replication of roaming users' profiles at a mobility gateway. This approach effectively reduces the signaling overhead and maintains compatibility with existing protocols for mobility management. The analysis results show that our proposed scheme is able to reduce intersystem location registration cost and total signaling cost up to 40% and 10%, respectively.