Optimized power control using LQ scheme for CDMA systems

Ji Young Byun, K. O. Young-Chai, Kwan Ho You

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


In this paper, we propose an optimal power control algorithm with fast convergence rate for CDMA cellular systems. The new power control algorithm is based on linear quadratic control theory (LQR). Using the state feedback control designed to minimize an objective function, each mobile performs a successful transmission with optimal power. Simulation results show a fast convergence rate to target SIR with less power consumption, and an augmented channel capacity through decreased outage probability.

Original languageEnglish
Pages (from-to)2909-2912
Number of pages4
JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Issue number11
Publication statusPublished - 2004 Nov


  • CDMA
  • LQR
  • Mobile communication
  • Optimal power control
  • SIR

ASJC Scopus subject areas

  • Signal Processing
  • Computer Graphics and Computer-Aided Design
  • Electrical and Electronic Engineering
  • Applied Mathematics


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