Capacity Limits and Multiplexing Gains of MIMO Channels with Transceiver Impairments

被引：121

作者：

Bjornson, Emil ^{[1
,2
]}

Zetterberg, Per ^{[1
]}

Bengtsson, Mats ^{[1
]}

Ottersten, Bjorn ^{[1
,3
]}

机构：

[1] KTH Royal Inst Technol, ACCESS Linnaeus Ctr, Signal Proc Lab, SE-10044 Stockholm, Sweden

[2] Flexible Radio, SUPELEC, F-91192 Gif Sur Yvette, France

[3] Univ Luxembourg, Interdisciplinary Ctr Secur Reliabil & Trust SnT, L-1359 Luxembourg, Luxembourg

来源：

IEEE COMMUNICATIONS LETTERS | 2013年 / 17卷 / 01期

基金：

瑞典研究理事会;

关键词：

Channel capacity; high-SNR analysis; multi-antenna communication; transceiver impairments;

D O I：

10.1109/LCOMM.2012.112012.122003

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

The capacity of ideal MIMO channels has a high-SNR slope that equals the minimum of the number of transmit and receive antennas. This letter analyzes if this result holds when there are distortions from physical transceiver impairments. We prove analytically that such physical MIMO channels have a finite upper capacity limit, for any channel distribution and SNR. The high-SNR slope thus collapses to zero. This appears discouraging, but we prove the encouraging result that the relative capacity gain of employing MIMO is at least as large as with ideal transceivers.

引用

页码：91 / 94

页数：4

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