CDMA uplink power control as a noncooperative game

Tansu Alpcan, Tamer Basar, R. Srikant, Eitan Altman

Research output: Contribution to journalArticle

Abstract

We present a game-theoretic treatment of distributed power control in CDMA wireless systems. We make use of the conceptual framework of noncooperative game theory to obtain a distributed and market-based control mechanism. Thus, we address not only the power control problem, but also pricing and allocation of a single resonance among several users. A cost function is introduced as the difference between the pricing and utility functions, and the existence of a unique Nash equilibrium is established. In addition, two update algorithms, namely, parallel update and random update, are shown to be globally stable under specific conditions. Convergence properties and robustness of each algorithm are also studied through extensive simulations.

Original languageEnglish (US)
Article number5099690
Pages (from-to)659-670
Number of pages12
JournalWireless Networks
Volume8
Issue number6
DOIs
StatePublished - Jan 1 2002

Keywords

  • CDMA
  • Game theory
  • Power control
  • Pricing
  • Resource allocation

ASJC Scopus subject areas

  • Information Systems
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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