Adaptive cell sectorization for UMTS third generation CDMA systems

Author

Giuliano, Romeo ; Mazzenga, Franco ; Vatalaro, Francesco

Author_Institution

Dipt. di Ingegneria Elettronica, Rome Univ., Italy

Volume

1

fYear

2001

fDate

2001

Firstpage

219

Abstract

Cell sectorization is commonly used to increase system capacity in cellular systems and is easily implemented. We propose a technique to improve system capacity based on adaptive sectorization. Sectors are rotated and/or resized adaptively in order to equalize the uplink C/I or the total downlink transmitted power in each sector The performance of the proposed procedure is analyzed for both uplink and downlink transmissions. Noticeable performance improvements are obtained when traffic is not uniformly distributed both spatially and in terms of data rate

Keywords

adaptive antenna arrays; cellular radio; code division multiple access; telecommunication traffic; 3G UMTS CDMA systems; adaptive cell sectorization; beamforming; cellular systems; downlink transmissions; system capacity; third generation UMTS CDMA systems; uplink transmissions; 3G mobile communication; Adaptive equalizers; Antenna arrays; Array signal processing; Downlink; Mobile communication; Multiaccess communication; Performance analysis; Power measurement; Signal processing algorithms;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd

Conference_Location

Rhodes

ISSN

1090-3038

Print_ISBN

0-7803-6728-6

Type

conf

DOI

10.1109/VETECS.2001.944835

Filename

944835