A novel power control scheme for packet-switched W-CDMA systems

Min Kuan Chang, Chang Su Kim, C. C.Jay Kuo

Research output: Contribution to journalConference articlepeer-review


A packet-based power scheme is proposed in this paper. The proposed power control scheme aims at minimizing the total number of transmission that a packet needs before it is receive successfully over a Rayleigh fading channel subjected to two constraints. One is that the transmission power should be greater than zero. The other imposed by the constraint on the total transmission power at the base station. We use the augmented Lagrangian multiplier method to solve this problem and provide a theoretical solution. The simulation results show that, with the proposed power control scheme, the number of re-transmission can be reduced and the delay of a packet waste in the channel can be decreased as well.

Original languageEnglish
Pages (from-to)22-33
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2002
Externally publishedYes
EventDigital Wireless Communications IV - Orlando, FL, United States
Duration: 2002 Apr 12002 Apr 2


  • ARQ
  • Augmented Lagrange multiplier method
  • Power control
  • W-CDMA

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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