Keyholes, correlations, and capacities of multielement transmit and receive antennas

被引：296

作者：

Chizhik, D ^{[1
]}

Foschini, GJ ^{[1
]}

Gans, MJ ^{[1
]}

Valenzuela, RA ^{[1
]}

机构：

[1] Bell Labs, Crawford Hill Lab, Holmdel, NJ 07733 USA

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2002年 / 1卷 / 02期

关键词：

Bell-labs layered space-time; correlation; keyhole; multiple-input multiple-output; propagation;

D O I：

10.1109/7693.994830

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：

Multielement system capacities are usually thought of as limited only by correlations between elements. It is shown here that degenerate channel phenomena called "keyholes" may arise under realistic assumptions which have zero correlation between the entries of the channel matrix H and yet only a single degree of freedom. Canonical physical examples of keyholes are presented. For outdoor environments, it is shown that roof edge diffraction is perceived as a "keyhole" by a vertical base array that may be avoided by employing instead a horizontal base array.

引用

页码：361 / 368

页数：8

共 20 条

[1] CROSS-CORRELATION BETWEEN THE ENVELOPES OF 900 MHZ SIGNALS RECEIVED AT A MOBILE RADIO BASE STATION SITE [J].