NDLI: Downlink beamforming for cellular mobile communications (gsm system)

Content Provider	Springer Nature Link
Author	Asté, Thierry Forster, Philippe Féty, Luc Mayrargue, Sylvie
Copyright Year	1998
Abstract	This paper is concerned with the possible implementation of antenna array processing at the base station of cellular radiomobile networks, typically theGsm case. It first explains how those antennas would increase the capacity of such a network, processing uplink as well as downlink. Then the attention is focused on downlink processing, that has been lesser studied than uplink processing and is a more difficult case due to frequency duplex division, but remains of high interest because it may turn into a bottleneck if not handled well. A criterion for transmit and some solutions to optimize it are then suggested and compared, before we conclude.Cet article envisage l’implantation d’antennes adaptatives aux stations de base des systèmes de radiocom-munications cellulaires avec les mobiles, typiquement le systemeGsm. Il rappelle d’abord comment ces antennes permettraient d’augmenter la capacité de tels systèmes, traitant aussi bien le lien montant que le lien descendant. On s’interesse ensuite plus spécifiquement au lien descendant, qui a recu moins d’interêt ces dernières années que le lien montant, et est plus compliqué à cause de la présence du duplex frequentiel. Il reste cependant d’une grande importance car il ne doit pas devenir un goulot d’étranglement du système. Un critère d’émission est proposé, ainsi que des solutions pour l’optimiser, qui sont comparées avant de conclure.
Starting Page	435
Ending Page	448
Page Count	14
File Format	PDF
ISSN	00034347
Journal	Annales Des Télécommunications
Volume Number	53
Issue Number	11-12
e-ISSN	19589395
Language	French
Publisher	Springer-Verlag
Publisher Date	1998-01-01
Publisher Place	Paris
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Radiocommunication service mobile Réseau cellu-laire Gsm Mise forme faisceau Diversité spatiale Antenne adaptative Conversion fréquence Angle arrivée Estimation statistique Communications Engineering, Networks Information Systems and Communication Service Signal, Image and Speech Processing Computer Communication Networks Information and Communication, Circuits R & D/Technology Policy
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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