The impact of different services on the outage probability in UMTS

Rudolf Mathar, Marie-Ange Remiche

Research output: Contribution in Book/Catalog/Report/Conference proceedingConference contribution


In this paper, we deal with the uplink outage probability for a UMTS cellular network at a reference base station equipped with a smart antenna. Users are assumed to be distributed according to a planar Poisson point process. Their respective transmission rates are modeled by independent random variables. This leads to a compound Poisson process for the total data rate to be served in a cell by code division multiplexing. Outage occurs if the total rate exceeds the effective chip rate (3.84 MChip/s divided by the minimum required bit energy to noise power ratio). Circulant matrices, a normal approximation, and Monte Carlo integration are employed to determine the outage probability as a performance parameter of the system.

Original languageEnglish
Title of host publicationIEEE Vehicular Technology Conference
Number of pages4
Publication statusPublished - Oct 2001
EventIEEE 54th Vehicular Technology Conference (VTC FALL 2001) - Atlantic City, NJ, United States
Duration: 7 Oct 200111 Oct 2001


ConferenceIEEE 54th Vehicular Technology Conference (VTC FALL 2001)
Country/TerritoryUnited States
CityAtlantic City, NJ


  • Circulant matrices
  • Code division multiple access (CDMA)
  • Compound Poisson process
  • Normal approximation
  • Universal mobile telecommunications system (UMTS)

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