Publication Type
Conference Proceeding Article
Version
submittedVersion
Publication Date
3-2004
Abstract
An information-theoretic framework is developed for optimal location management in multisystem, fourth generation (4G) wireless networks. The framework envisions that each individual subsystem operates fairly independently, and does not require public knowledge of individual subnetwork topologies. To capture the variation in paging and location update costs in this heterogeneous environment, the location management problem is formulated in terms of a new concept of weighted entropy. The update process is based on the Lempel-Ziv compression algorithms, which are applied to a vector-valued sequence consisting of both the mobile's movement pattern and its session activity state. Three different tracking strategies which differ in their degrees of centralized control and provide trade off between the location update and paging costs, are proposed and evaluated. While both the proposed centralized and distributed location management strategies are endowed with optimal update capability, the proposed selective location management heuristic also offers a practical trade off between 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, multisystem location management strategy. These update strategies can be realized with only modest amounts of memory (12-15 Kbytes) on the mobile.
Keywords
Location management, update, paging, multi-system cellular networks, information theory, LZ compression
Discipline
Software Engineering
Research Areas
Software and Cyber-Physical Systems
Publication
IEEE INFOCOM 2004: 7-11 March, Hong Kong: Proceedings
First Page
286
Last Page
297
ISBN
9780780383562
Identifier
10.1109/INFCOM.2004.1354502
Publisher
IEEE
City or Country
Piscataway, NJ
Citation
MISRA, Archan; ROY, Abhishek; and DAS, Sajal K..
An Information-Theoretic Framework for Optimal Location Tracking in Multi-System 4G Wireless Networks. (2004). IEEE INFOCOM 2004: 7-11 March, Hong Kong: Proceedings. 286-297.
Available at: https://ink.library.smu.edu.sg/sis_research/698
Copyright Owner and License
Authors
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Additional URL
https://doi.org/10.1109/INFCOM.2004.1354502