An Upper Bound on the Convergence Rate of Uplink Power Control in DS-CDMA Systems

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)231-233
Journal / PublicationIEEE Communications Letters
Issue number4
Publication statusPublished - Apr 2006
Externally publishedYes


Uplink transmit power control is crucial for resource allocation and interference management in DS-CDMA systems. In literature, specific distributed algorithms are proposed and their convergence rates are evaluated. In this letter, we explore the optimal achievable convergence rate. We first understand power control as a channel coding problem and derive an upper bound on the convergence rate. Then we propose coding power control bits across users, suggesting the achievability of the bound. Finally we use this upper bound to evaluate the uplink power control overhead in IS-95 systems. © 2006 IEEE.

Research Area(s)

  • Power control, Rate of convergence, Real-time reliable communications