New techniques for the calculation of the average SIR and the outage probability of the uplink of CDMA systems

Enrico Jugl, Holger Boche

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

New techniques for the calculation of the average signal-to-interference ratio (SIR) and the outage probability of the uplink of a single cell CDMA based mobile communications system are introduced. We show the differences between the often employed lower bound on the average SIR and the exact value of the average SIR. These differences are significant if the variance of the SIR gets higher which will affect the outage probability. A high signal-to-noise ratio, a low voice activity factor and a high grade of imperfection of the power control system cause a higher variance of the SIR. These effect is emphasized especially if there is a few number of subscribers. Usually, in the literature the capacity of such CDMA based mobile systems is often calculated by employing a lower bound on the average SIR. Generally, our basic approach shows that this is not possible.

Original languageEnglish
Title of host publication2000 IEEE Wireless Communications and Networking Conference
Pages1477-1481
Number of pages5
StatePublished - 2000
Externally publishedYes
Event2000 IEEE Wireless Communications and Networking Conference - Chicago, IL, United States
Duration: 23 Sep 200028 Sep 2000

Publication series

Name2000 IEEE Wireless Communications and Networking Conference

Conference

Conference2000 IEEE Wireless Communications and Networking Conference
Country/TerritoryUnited States
CityChicago, IL
Period23/09/0028/09/00

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