Stochastic power control with bit estimation and base station processing

Prashanth Akula, Tolga M. Duman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A distributed power control algorithm for a stochastic system when the estimates of the measured quantities are noisy has been proposed in [1]. In this paper, we propose two different modifications of this algorithm that aim at lowering the noise variance of the measured quantities in order to achieve a faster rate of convergence. In the first approach, the received (possibly erroneous) bit of the desired user is used to obtain a more accurate estimate of its interference power. While in the second approach, the local information available at each base station is used to simulate an estimate of the interference power experienced by each one of its own users. Then a weighted average of this simulated interference power and the actual measured one is taken, effectively resulting in an average over a larger window, which lowers the noise variance. We demonstrate through simulations that both of these modifications achieve a faster rate of convergence compared to that of the existing algorithms for a distributed and stochastic system.

Original languageEnglish (US)
Title of host publicationIEEE International Conference on Communications
Pages1616-1620
Number of pages5
Volume3
StatePublished - 2002
Event2002 International Conference on Communications (ICC 2002) - New York, NY, United States
Duration: Apr 28 2002May 2 2002

Other

Other2002 International Conference on Communications (ICC 2002)
CountryUnited States
CityNew York, NY
Period4/28/025/2/02

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Keywords

  • CDMA
  • Decentralized power control
  • Power control
  • QoS
  • Stochastic power control

ASJC Scopus subject areas

  • Media Technology

Cite this

Akula, P., & Duman, T. M. (2002). Stochastic power control with bit estimation and base station processing. In IEEE International Conference on Communications (Vol. 3, pp. 1616-1620)