Diversity-Multiplexing Tradeoff of Double Scattering MIMO Channels

被引:20
|
作者
Yang, Sheng [1 ]
Belfiore, Jean-Claude [2 ]
机构
[1] SUPELEC, Dept Telecommun, F-91190 Gif Sur Yvette, France
[2] Telecom Paristech, Dept Commun & Elect, F-75013 Paris, France
关键词
Diversity-multiplexing tradeoff (DMT); double scattering; fading; multiple-input multiple-output (MIMO); random matrix; SPACE-TIME CODES; PERFECT SPACE;
D O I
10.1109/TIT.2011.2111690
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
It is well known that the presence of double scattering degrades the performance of a MIMO channel, in terms of both the multiplexing gain and the diversity gain. In this paper, a closed-form expression of the diversity-multiplexing tradeoff (DMT) of double scattering MIMO channels is obtained. It is shown that, for a channel with n(T) transmit antennas, n(R) receive antennas. and n(S) scatterers, the DMT only depends on the ordered version of the triple (n(T), n(S), n(R)), for arbitrary, n(T), n(S) and n(R). The condition under which the double scattering channel has the same DMT as the single scattering channel is also established.
引用
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页码:2027 / 2034
页数:8
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