Measured capacity gain using waterfilling in frequency selective MIMO channels

被引：13

作者：

Almers, P ^{[1
]}

Tufvesson, F ^{[1
]}

Edfors, O ^{[1
]}

Molisch, AF ^{[1
]}

机构：

[1] Lund Univ, Dept Electrosci, SE-22100 Lund, Sweden

来源：

13TH IEEE INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOL 1-5, PROCEEDINGS: SAILING THE WAVES OF THE WIRELESS OCEANS | 2002年

关键词：

MIMO; measurements; capacity; waterfilling; eigenvalue distribution;

D O I：

10.1109/PIMRC.2002.1045248

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

We analyze the channel capacity of multiple-input multiple-output (MIMO) systems in frequcncy selective channels, with channel knowledge at the transmitter side. An optimum transmission scheme uses Shannon's principle of waterfilling jointly in the frequency and the spatial domain. However, we show in this paper that the largest gain by using waterfilling resides in the spatial domain, and that the capacity gain from the frequency domain is very small for MIMO systems. We quantify the gain for a theoretical Rayleigh fading channel model and for microcellular channels as measured in an enclosed court-yard.

引用

页码：1347 / 1351

页数：5

共 11 条

[1]

BURR AG, 2001, P EUR PERS MOB COMM

[2]

Cover T. M., 2005, ELEM INF THEORY, DOI 10.1002/047174882X

[3] On Limits of Wireless Communications in a Fading Environment when Using Multiple Antennas [J].