Dynamically adapting registration areas to user mobility and call patterns for efficient location management in PCS networks

Georgios Varsamopoulos, Sandeep Gupta

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

In this paper, we propose an extension to the personal communication services (PCS) location management protocol which uses dynamically overlapped registration areas. The scheme is based on monitoring the aggregate mobility and call pattern of the users during each reconfiguration period and adapting to the mobility and call patterns by either expanding or shrinking registration areas at the end of each reconfiguration period. We analytically characterize the trade-off resulting from the inclusion or exclusion of a cell in a registration area in terms of expected change in aggregate database access cost and signaling overhead. This characterization is used to guide the registration area adaption in a manner in which the signaling and database access load on any given location register (LR) does not exceed a specified limit. Our simulation results show that it is useful to dynamically adapt the registration areas to the aggregate mobility and call patterns of the mobile units when the mobility pattern exhibits locality. For such mobility and call patterns, the proposed scheme can greatly reduce the average signaling and database access load on LRs. Further, the cost of adapting the registration areas is shown to be low in terms of memory and communication requirements.

Original languageEnglish (US)
Pages (from-to)837-850
Number of pages14
JournalIEEE/ACM Transactions on Networking
Volume12
Issue number5
DOIs
StatePublished - Oct 2004

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Personal communication systems
Costs
Data storage equipment
Monitoring
Communication

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Hardware and Architecture
  • Information Systems

Cite this

Dynamically adapting registration areas to user mobility and call patterns for efficient location management in PCS networks. / Varsamopoulos, Georgios; Gupta, Sandeep.

In: IEEE/ACM Transactions on Networking, Vol. 12, No. 5, 10.2004, p. 837-850.

Research output: Contribution to journalArticle

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