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

Charly Poulliat (1) , Inbar Fijalkow , David Declercq

1 ETIS - UMR 8051 - Equipes Traitement de l'Information et Systèmes

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 erro- neous 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, al- lowing 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.

Mots clés: resource allocation management; link adaptation; rate and power adaptation; multirate DS-CDMA

Domaines: Traitement du signal et de l'image [eess.SP]; Théorie de l'information [cs.IT]; Théorie de l'information et codage [math.IT]; Réseaux et télécommunications [cs.NI]; Traitement du signal et de l'image [eess.SP]

Charly Poulliat, Inbar Fijalkow, David Declercq. Link Adaptation for Framed Multimedia Data Transmission over a DS-CDMA Communication System. Eurasip Journal on Applied Signal Processing, 2005, 2, pp.153-166. ⟨10.1155/ASP.2005.153⟩. ⟨hal-00519781⟩