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Position locking: Handling location dependent queries in mobile computing environment

  • Budiarto
  • Kaname Harumoto
  • Masahiko Tsukamoto
  • Shojiro Nishio
Session C-3: Mobile Computing
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1274)

Abstract

The mobile computing paradigm introduces new technical issues in the area of database systems. Especially, mobility of hosts engenders a new kind of locality that migrates as hosts move. In mobile computing environment, the location of user is a frequently changing piece of data. Due to this nature, problems can occur when locations become subjects of queries, such as in aggregate location dependent queries. In this paper, we propose the position locking mechanism, a technique to overcome such problems. Using position locking, the aggregate location dependent query can be guaranteed to get the consistent result. We also propose some techniques that can improve the performance of position locking and reduce its network bandwidth consumption.

Keywords

Mobile User Query Processing Location Server Mobile Host Location Database 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • Budiarto
    • 1
  • Kaname Harumoto
    • 1
  • Masahiko Tsukamoto
    • 1
  • Shojiro Nishio
    • 1
  1. 1.Department of Information Systems Engineering Graduate School of EngineeringOsaka UniversityOsakaJapan

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