Downlink beamforming for frequency-duplex systems in frequency-selective fading

Author

Czylwik, Andreas ; Matsumoto, Tadashi

Author_Institution

T-Nova Deutsche Telekom Innovationsgesellschaft mbH, Darmstadt, Germany

Volume

2

fYear

2000

fDate

2000

Firstpage

695

Abstract

Downlink beamforming is analyzed for broadband frequency-duplex systems where frequency-selective fading dominates. In order to compare different beamforming strategies, system level simulations are carried out. It is assumed that at the receiver of the mobile station, path diversity can be exploited. The performance gain from maximal ratio combining of the signal components is evaluated with a new approach that combines system level simulations with an analytical calculation of the probability density function of the signal-to-interference power ratio (SIR) at the output of the combiner

Keywords

array signal processing; broadband networks; cellular radio; cochannel interference; digital simulation; direction-of-arrival estimation; diversity reception; fading channels; interference suppression; probability; radio links; radiowave propagation; space division multiple access; SDMA; SIR; beamforming algorithm; broadband frequency-duplex systems; cellular radio system; combiner output; downlink beamforming; frequency-duplex systems; frequency-selective fading; maximal ratio combining; mobile station receiver; path diversity; performance gain; probability density function; propagation model; signal components; signal-to-interference power ratio; smart antennas; space division multiple access; system level simulations; Analytical models; Array signal processing; Diversity reception; Downlink; Fading; Frequency; Performance analysis; Performance gain; Probability density function; Signal analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st

Conference_Location

Tokyo

ISSN

1090-3038

Print_ISBN

0-7803-5718-3

Type

conf

DOI

10.1109/VETECS.2000.851214

Filename

851214