Elements of information theory
Elements of information theory
Mobile users: to update or not to update?
Wireless Networks
Minimizing the average cost of paging under delay constraints
Wireless Networks
A cost-efficient signaling protocol for mobility application part (MAP) in IMT-2000 systems
Proceedings of the 7th annual international conference on Mobile computing and networking
LeZi-update: an information-theoretic framework for personal mobility tracking in PCS networks
Wireless Networks - Selected Papers from Mobicom'99
Wake on wireless: an event driven energy saving strategy for battery operated devices
Proceedings of the 8th annual international conference on Mobile computing and networking
Computers and Intractability: A Guide to the Theory of NP-Completeness
Computers and Intractability: A Guide to the Theory of NP-Completeness
SODA '03 Proceedings of the fourteenth annual ACM-SIAM symposium on Discrete algorithms
User Mobility Pattern Scheme for Location Update and Paging in Wireless Systems
IEEE Transactions on Mobile Computing
Concurrent search of mobile users in cellular networks
IEEE/ACM Transactions on Networking (TON)
Mobile Networks and Applications
Secure authentication system for public WLAN roaming
Mobile Networks and Applications - Special issue: Wireless mobile wireless applications and services on WLAN hotspots
IEEE Transactions on Mobile Computing
A multilateral secure payment system for wireless LAN hotspots
TrustBus'05 Proceedings of the Second international conference on Trust, Privacy, and Security in Digital Business
A dynamic location management scheme for next-generation multitier PCS systems
IEEE Transactions on Wireless Communications
MIRAI architecture for heterogeneous network
IEEE Communications Magazine
Global roaming in next-generation networks
IEEE Communications Magazine
Next-generation wireless communications concepts and technologies
IEEE Communications Magazine
A profile-based location strategy and its performance
IEEE Journal on Selected Areas in Communications
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
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In a multi-system environment where a mobile node can utilize multiple interfaces and simultaneously connect to multiple providers, new opportunities exist for efficient location management strategies spanning heterogeneous cellular wireless networks. In this paper, an integrated framework is developed for location management in such a multi-system, fourth generation (4G) wireless networks. This information-theoretic framework allows each individual sub-system to operate fairly independently, and does not require the knowledge of individual sub-network topologies. An efficient location management in such a loosely coupled network is designed by having a mobile node view its movement as a vector-valued sequence, and then transmit this sequence in an entropy coded form to the network. We demonstrate how an intelligent, integrated paging strategy must consider the joint residence probability distribution of a mobile node in multiple sub-networks. We prove that the determination of an optimal paging sequence is NP-complete, and also propose an efficient greedy heuristic to compute the paging sequence, both without and with bounds on the paging delay. Three different location tracking strategies are proposed and evaluated; they differ in their degrees of centralized control and provide tradeoff between the location update and paging costs. Simulation experiments demonstrate that our proposed schemes can result in more than 50% savings in both update and paging costs, in comparison with the basic movement-based, multi-system location management strategy.