Beamforming vs. transmit diversity in the downlink of a cellular communications system

Author

Friedlander, Benjamin ; Scherzer, Shimon

Author_Institution

Dept. Electr. Eng., California Univ., Santa Cruz, CA, USA

Volume

2

fYear

2001

fDate

4-7 Nov. 2001

Firstpage

1014

Abstract

Transmit diversity and beamforming are two complementary techniques for using multiple antennas in the forward link of a cellular communication system. The first provides the benefit of diversity with no array gain, while the second provides array gain, but no diversity. We present a comparative analysis of the two systems, using outage capacity as the performance measure. The effects of handoff and correlated fading are considered.

Keywords

antenna arrays; array signal processing; cellular radio; channel capacity; correlation methods; diversity reception; fading channels; radio links; transmitting antennas; array gain; beamforming; cellular communications system; correlated fading; downlink; forward link capacity; handoff; multiple antennas; outage capacity; performance measure; transmit diversity; Antenna arrays; Antenna measurements; Array signal processing; Diversity reception; Downlink; Fading; Mobile antennas; Receiving antennas; Signal to noise ratio; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2001. Conference Record of the Thirty-Fifth Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-7803-7147-X

Type

conf

DOI

10.1109/ACSSC.2001.987648

Filename

987648