GBL : group-based location updating in mobile wireless environment

G.H.K. Lam, Hong Va Leong, S.C.F. Chan

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


Conventionally, each mobile host frequently reports its current location to a location server in a mobile environment, termed individual-based approach. With a large mobile host population, the demand on the wireless uplink channel becomes overwhelm. In this paper, we propose a group-based scheme to alleviate the demand on the uplink channel. With our scheme, nearby mobile hosts, possessing similar mobility, are clustered. Only one host in a cluster reports collectively their locations to the server. This approach reduces the uplink traffic from mobile hosts to the server since individual update messages are aggregated. We propose a dynamic group formation scheme, and the strategies to report host locations within a cluster and to report a cluster location to the server. A simulation model is built to evaluate the effectiveness of our scheme. The results show our scheme outperforms individual-based approach, particularly under dense population scenarios.
Original languageEnglish
Title of host publicationLecture notes in computer science (including subseries Lecture notes in artificial intelligence and lecture notes in bioinformatics)
Number of pages13
ISBN (Electronic)9783540245711
ISBN (Print)9783540210474
Publication statusPublished - 2004
EventInternational Conference on Database Systems for Advanced Applications [DASFAA] -
Duration: 1 Jan 2004 → …


ConferenceInternational Conference on Database Systems for Advanced Applications [DASFAA]
Period1/01/04 → …

ASJC Scopus subject areas

  • General Computer Science
  • Theoretical Computer Science


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