Interpretations and performances of linear reception in downlink TD-CDMA and multi-sensor extension

Laurent Ros (1) , Geneviève Jourdain (1) , Marylin Arndt (2)

1 LIS - Laboratoire des images et des signaux
2 FTR&D - France Télécom Recherche et Développement

This paper deals with a TD-CDMA multi-user system downlink through a radio-mobile multipath channel, such as TDD-UMTS. We propose interpretations and equivalent models specific to such a multiple access mode, mostly via a frequency approach. The expressions and performances of the classic linear multi-user detectors are then reformulated. Furthermore, performance computation is applied to indoor and vehicular channel environments, showing the benefit of joint detection and diversity reception with two or three sensors at the mobile.

Mots clés: Mobile radiocommunication downlink; Code division multiple access (CDMA); Multi-sensor antenna; Multi-path and multi-user channel; Joint detection; Aliased cross-channels spectral matrix

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

Laurent Ros, Geneviève Jourdain, Marylin Arndt. Interpretations and performances of linear reception in downlink TD-CDMA and multi-sensor extension. Annals of Telecommunications - annales des télécommunications, 2001, 56 (5-6), pp.275-290. ⟨hal-00275644⟩