Paper Info
Title
Two-stage compensation for non-ideal effects in MIMO-OFDM systems
Abstract
In this paper, we propose a two-stage estimation and compensation of the carrier frequency offset (CFO) and the IQ imbalance in MIMO-OFDM systems. In the first stage, the receiver IQ imbalance is compensated along with CFO estimation. In the second stage, the transmitter IQ imbalance is compensated by taking advantage of structure of Alamouti space-time block codes. Robust least square estimations are applied for all compensation processes. Compared with the conventional system that only compensates receiver IQ imbalance, simulation results show that BER performance of the proposed system is significantly improved.
Year
Venue
Keywords
2012
APSIPA
nonideal effects,alamouti space-time block codes,two-stage compensation,frequency estimation,ofdm modulation,two-stage estimation,transmitter iq imbalance compensation,least squares approximations,mimo communication,carrier frequency offset,ber performance,space-time block codes,cfo estimation,mimo-ofdm systems,error statistics,receiver iq imbalance compensation,robust least square estimations
Field
DocType
ISSN
Least squares,MIMO-OFDM,Transmitter,IQ imbalance,Control theory,Computer science,Block code,Carrier frequency offset,Mimo communication,Orthogonal frequency-division multiplexing
Conference
2309-9402
ISBN
Citations 
PageRank 
978-1-4673-4863-8
0
0.34
References 
Authors
3
4
Name
Order
Citations
PageRank
Chih-Chi Wu100.34
Ping Ma210.69
Wun-Du Hung300.34
Chih-Hung Kuo48614.77