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Link Adaptation for Framed Multimedia Data Transmission over a DS-CDMA Communication System

Abstract

In the context of frame-based multimedia wireless transmission, a link adaptation strategy is proposed, assuming that the source decoder may accept some remaining errors at the output of the channel decoder. Based on a target mean bit error rate for erroneous frames, a minimum bit-energy-to-equivalent-noise ratio is chosen. Under this constraint, a new link adaptation criterion is proposed: the maximization of the minimum user's information rate through dynamic spreading gain and power control, allowing to guarantee a transmission for each and every user. An analytical solution to this constrained optimization problem is proposed and its performance is studied in a Rayleigh-fading environment.

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Correspondence to Charly Poulliat.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Poulliat, C., Fijalkow, I. & Declercq, D. Link Adaptation for Framed Multimedia Data Transmission over a DS-CDMA Communication System. EURASIP J. Adv. Signal Process. 2005, 258790 (2005). https://doi.org/10.1155/ASP.2005.153

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  • DOI: https://doi.org/10.1155/ASP.2005.153

Keywords and phrases

  • resource allocation management
  • link adaptation
  • rate and power adaptation
  • multirate DS-CDMA