Improvinq the fault tolerance of GSM networks

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

A PCS network constantly tracks the locations of the mobile stations so that incoming calls can be delivered to the target mobile stations. In general, a two-level database system is used to store location information of the mobile stations. When the location databases fail, incoming calls may be lost. This article describes the standard GSM database failure restoration procedure which reduces the number of lost calls. Then we propose an efficient VLR identification algorithm for the HLR failure recovery procedure, which utilizes mobile station movement information to speed up the recovery procedure.

Original languageEnglish
Pages (from-to)58-63
Number of pages6
JournalIEEE Network
Volume12
Issue number1
DOIs
StatePublished - 1 Jan 1998

Keywords

  • GSM
  • Database
  • Personal communication networks
  • ISDN
  • Base stations
  • mobile radio mobility management
  • mobile computing
  • communication switching
  • Switches
  • Computer networks

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