Beamforming versus transmit diversity in the downlink of a cellular communications system

被引:37
作者
Friedlander, B [1 ]
Scherzer, S
机构
[1] Univ Calif Santa Cruz, Dept Elect Engn, Santa Cruz, CA 95064 USA
[2] Kiwi Networks Inc, Campbell, CA 95008 USA
基金
美国国家科学基金会;
关键词
array processing; beamforming; capacity; cellular; diversity; fading; handoff; power control;
D O I
10.1109/TVT.2004.830980
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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. Here, we present a comparative analysis of the two systems, using outage capacity and transmit power as performance measures. The effects of handoff, correlated fading, and power control are considered.
引用
收藏
页码:1023 / 1034
页数:12
相关论文
共 19 条
[1]   A simple transmit diversity technique for wireless communications [J].
Alamouti, SM .
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 1998, 16 (08) :1451-1458
[2]   Limiting performance of block-fading channels with multiple antennas [J].
Biglieri, E ;
Caire, G ;
Taricco, G .
IEEE TRANSACTIONS ON INFORMATION THEORY, 2001, 47 (04) :1273-1289
[3]  
CLAIRE G, 1999, IEEE COMMUNICATIONS
[4]   On Limits of Wireless Communications in a Fading Environment when Using Multiple Antennas [J].
Foschini G.J. ;
Gans M.J. .
Wireless Personal Communications, 1998, 6 (3) :311-335
[5]   A transmitter diversity scheme for wideband CDMA systems based on space-time spreading [J].
Hochwald, B ;
Marzetta, TL ;
Papadias, CB .
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 2001, 19 (01) :48-60
[6]  
JOHNSON NL, 1994, CONTINOUS UNIVARIATE
[7]  
LEE WCY, 2000, ESSENTIALS WIRELESS
[8]  
Liberti J.C., 1999, PR H COMMUN ENGN EM
[9]   Capacity of a mobile multiple-antenna communication link in Rayleigh flat fading [J].
Marzetta, TL ;
Hochwald, BM .
IEEE TRANSACTIONS ON INFORMATION THEORY, 1999, 45 (01) :139-157
[10]  
Parsons D. J., 2000, The mobile radio propagation channel, VSecond