Space-time processing for smart antennas in advanced receivers for the user terminal in 3G WCDMA systems

Author

Cardoso, Fabbtryccio A C M ; Fernandes, Marcelo A C ; Arantes, Dalton S.

Author_Institution

Dept. of Commun., State Univ. of Campinas, Brazil

Volume

48

Issue

4

fYear

2002

fDate

11/1/2002 12:00:00 AM

Firstpage

1082

Lastpage

1090

Abstract

An adaptive multi-target space-time down-link receiver for user terminals of WCDMA systems under soft handoff is presented. The receiver consists of M antennas and K array processors, each one followed by a chip-rate equalizer and a despreader. The resulting K signals are combined in an "adaptive ratio combiner" which is updated by pilot common channel information in UTRA-FDD systems. All the structure in the FDD WCDMA downlink signal is exploited for improved performance. Simulation results for a stationary channel and for COST-259 channel models, for vehicle speed of 50 km/h, are presented.

Keywords

3G mobile communication; adaptive antenna arrays; array signal processing; broadband networks; code division multiple access; equalisers; frequency division multiplexing; land mobile radio; radio access networks; radio receivers; 50 km/h; COST-259 channel models; FDD W-CDMA downlink signal; UTRA-FDD systems; W-CDMA systems; adaptive multi-target space-time downlink receiver; adaptive ratio combiner; antennas; array processors; chip-rate equalizer; despreader; pilot common channel information; soft handoff; stationary channel; user terminals; vehicle speed; Antenna arrays; Base stations; Delay estimation; Downlink; Interference; Multiaccess communication; Multimedia systems; Receiving antennas; Space technology; Vehicles;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/TCE.2003.1196442

Filename

1196442