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

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.

Authors and Affiliations

1. ETIS Laboratory (UMR 8051), ENSEA/University of Cergy-Pontoise/CNRS, 6 Avenue du Ponceau, Cergy-Pontoise Cedex, 95014, France

   Charly Poulliat, Inbar Fijalkow & David Declercq

Corresponding author

Correspondence to Charly Poulliat.

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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