Titre :

Synchronization over rapidly time-varying multipath channel for CDMA downlink RAKE receivers in Time-Division mode

Auteur(s) :

Simon, Eric [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Ros, Laurent [Auteur]
GIPSA - Communication, Signal et Sécurité [GIPSA-C2S]
Raoof, Kosai [Auteur]
GIPSA - Communication, Signal et Sécurité [GIPSA-C2S]

Titre de la revue :

IEEE Transactions on Vehicular Technology

Pagination :

2216-2225

Éditeur :

Institute of Electrical and Electronics Engineers

Date de publication :

2007-07

ISSN :

0018-9545

Mot(s)-clé(s) en anglais :

Code Division Multiple Access (CDMA)
downlink
phase estimation
multipath channels
downlink.

Discipline(s) HAL :

Sciences de l'ingénieur [physics]/Traitement du signal et de l'image [eess.SP]
Informatique [cs]/Traitement du signal et de l'image [eess.SP]

Résumé en anglais : [en]

In this paper, we consider a Time-Division CDMA system operating in downlink mode in a multi-user multipath channel scenario. In order to implement RAKE reception, delays, phases and magnitudes of the different paths need ...
Lire la suite >In this paper, we consider a Time-Division CDMA system operating in downlink mode in a multi-user multipath channel scenario. In order to implement RAKE reception, delays, phases and magnitudes of the different paths need to be estimated and the estimates updated. In the context of burst transmissions, delays do not vary during a burst and only phases and magnitudes need to be tracked. In this paper we investigate the issue of phase tracking over rapidly time varying multipath channels. We propose a new version of a conventional phase loop that mitigates the interpath interference effect. The optimization is based on the concept of prefiltering. The analysis shows improved tracking performance in comparison with the standard phase recovery algorithm.Lire moins >

Langue :

Anglais

Vulgarisation :

Non

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL