Reducing call setup latency in mobile VoIP systems

Sangheon Pack, Gwangwoo Park, Younghyun Kim, Wonjun Lee

Research output: Contribution to journalArticle

4 Citations (Scopus)


In mobile voice over IP (VoIP) systems, user mobility leads to the increased call setup latency to find out the current location of user, which has a negative impact on users call quality. In this letter, we propose a prefetching technique for user location to reduce the call setup latency. We develop an analytical model and investigate the impacts of mobility parameters and thresholds.

Original languageEnglish
Article number6008529
Pages (from-to)1126-1128
Number of pages3
JournalIEEE Communications Letters
Issue number10
Publication statusPublished - 2011 Oct 1


  • location management
  • Mobile VoIP
  • SIP

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Modelling and Simulation

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