Effect of Imperfect Transmit Correlation on Statistical Beamforming in Multi-User Cellular Systems

被引：1

作者：

Cho, Hee-Nam ^{[1
,2
]}

Park, Han-Jun ^{[1
,2
]}

Lee, Yong-Hwan ^{[1
,2
]}

机构：

[1] Seoul Natl Univ, Sch Elect Engn & Comp Sci, Seoul 151744, South Korea

[2] Seoul Natl Univ, INMC, Seoul 151744, South Korea

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2010年 / 9卷 / 11期

关键词：

Co-channel interference (CCI); imperfect transmit correlation; statistical beamforming; BROADCAST CHANNELS; THROUGHPUT; FEEDBACK; CAPACITY;

D O I：

10.1109/TWC.2010.090210.100142

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：

This letter investigates the effect of imperfect transmit correlation on the performance of statistical beamforming in terms of average signal-to-interference plus noise ratio (SINR) in a correlated multi-user multi-antenna cellular system. The average SINR of the statistical beamforming depends on the accuracy of transmit correlation information as well as the characteristics of co-channel interference (CCI) from adjacent base stations. It is shown by means of multivariate Taylor series expansion that the average SINR degradation due to imperfect transmit correlation is associated with the mean squared error (MSE) and the number of quantization bits, and that those effect significantly varies depending on the correlation magnitude and the phase difference between the transmit correlation coefficient of the intended and CCI channel.

引用

页码：3335 / 3340

页数：6

共 13 条

[1]

[Anonymous], 80216M090034R2 IEEE

[2] Exploiting the short-term and long-term channel properties in space and time: Eigenbeamforming concepts for the BS in WCDMA [J].

Brunner, C ;

Utschick, W ;

Nossek, JA .

EUROPEAN TRANSACTIONS ON TELECOMMUNICATIONS, 2001, 12 (05) :365-378

[3] On the achievable throughput of a multiantenna Gaussian broadcast channel [J].

Caire, G ;

Shamai, S .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2003, 49 (07) :1691-1706

[4] Attainable throughput of an interference-limited multiple-input multiple-output (MIMO) cellular system [J].

Catreux, S ;

Driessen, PF ;

Greenstein, LJ .

IEEE TRANSACTIONS ON COMMUNICATIONS, 2001, 49 (08) :1307-1311

[5]

GILBERT S, 1998, LINEAR ALGEBRA ITS A

[6] Capacity limits of MIMO channels [J].

Goldsmith, A ;

Jafar, SA ;

Jindal, N ;

Vishwanath, S .

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 2003, 21 (05) :684-702

[7]

Hoeher P, 1997, INT CONF ACOUST SPEE, P1845, DOI 10.1109/ICASSP.1997.598897

[8]

JENSON VG, 1963, MATH METHODS CHEM EN

[9] MIMO broadcast channels with finite-rate feedback [J].

Jindal, Nihar .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2006, 52 (11) :5045-5060

[10] Effect of Transmit Correlation on the Sum-Rate Capacity of Two-User Broadcast Channels [J].

Lee, Jin-Woo ;

Ko, Jae-Yun ;

Lee, Yong-Hwan .

IEEE TRANSACTIONS ON COMMUNICATIONS, 2009, 57 (09) :2597-2599

← 1 2 →