Novel SIR-estimation-based power control in a CDMA mobile radio system under multipath environment

Chung Ming Lau, W. M. Tam

Research output: Journal article publicationJournal articleAcademic researchpeer-review

11 Citations (Scopus)


A novel decisive algorithm based on signal-to-interference power ratio estimation has been proposed to control the power transmission of the mobiles in a code-division multiple-access mobile radio system under multipath environment. A simple second-order equation, together with three different sets of measurement and power-control periods, is first used to predict the power gains of the channels. Based on the predicted power gains, five decision rules have been proposed to determine the power-control commands for the mobiles. The novel algorithm with the best prediction method and decision rule has been observed to accomplish a lower outage probability when compared with the conventional power-control algorithm with optimum power-control threshold.
Original languageEnglish
Pages (from-to)314-320
Number of pages7
JournalIEEE Transactions on Vehicular Technology
Issue number1
Publication statusPublished - 1 Jan 2001


  • Code division multiple access (CDMA)
  • Power control
  • Signal-to-interference power ratio (SIR) estimation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

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