DocumentCode :
2243127
Title :
MIMO transmission with residual transmit-RF impairments
Author :
Studer, Christoph ; Wenk, Markus ; Burg, Andreas
Author_Institution :
Commun. Technol. Lab., ETH Zurich, Zurich, Switzerland
fYear :
2010
fDate :
23-24 Feb. 2010
Firstpage :
189
Lastpage :
196
Abstract :
Physical transceiver implementations for multiple-input multiple-output (MIMO) wireless communication systems suffer from transmit-RF (Tx-RF) impairments. In this paper, we study the effect on channel capacity and error-rate performance of residual Tx-RF impairments that defy proper compensation. In particular, we demonstrate that such residual distortions severely degrade the performance of (near-)optimum MIMO detection algorithms. To mitigate this performance loss, we propose an efficient algorithm, which is based on an i.i.d. Gaussian model for the distortion caused by these impairments. In order to validate this model, we provide measurement results based on a 4-stream Tx-RF chain implementation for MIMO orthogonal frequency-division multiplexing (OFDM).
Keywords :
Gaussian channels; MIMO communication; OFDM modulation; radio transmitters; MIMO orthogonal frequency-division multiplexing; MIMO residual transmit-RF impairments; multiple-input multiple-output wireless communication systems; transceiver implementations; Channel capacity; Degradation; Detection algorithms; Distortion measurement; Frequency division multiplexing; Frequency measurement; MIMO; Performance loss; Transceivers; Wireless communication;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Smart Antennas (WSA), 2010 International ITG Workshop on
Conference_Location :
Bremen
Print_ISBN :
978-1-4244-6070-0
Electronic_ISBN :
978-1-4244-6071-7
Type :
conf
DOI :
10.1109/WSA.2010.5456453
Filename :
5456453
Link To Document :
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