Paper Info
Title
Impact and compensation of I/Q imbalance on channel reciprocity of time-division-duplexing multiple-input multiple-output systems.
Abstract
Direct-conversion-based wireless communication systems suffer from I/Q imbalances in the front-end analog processing. In this study, the authors investigate the impact of frequency-independent (FI) I/Q imbalance on the channel reciprocity of time-division-duplexing (TDD) multiple-input multiple-output (MIMO) systems over frequency flat-fading channels. Moreover, in order to compensate the channel non-reciprocity caused by FI I/Q imbalance, the authors propose two pre-compensation algorithms with and without I/Q imbalance parameters. The performance of the TDD MIMO system under study is evaluated in terms of downlink capacity and bit-error rate. Simulation results show that the proposed algorithms can effectively mitigate the negative effect of FI I/Q imbalance on the channel reciprocity.©The Institution of Engineering and Technology 2013.
Year
DOI
Venue
2013
10.1049/iet-com.2012.0620
Communications, IET
Field
DocType
Volume
Wireless communication systems,Telecommunications,Computer network,Communication channel,MIMO,Electronic engineering,Channel reciprocity,Mathematics,Analog signal processing,Bit error rate,Duplex (telecommunications),Telecommunications link
Journal
7
Issue
ISSN
Citations 
7
1751-8628
6
PageRank 
References 
Authors
0.48
4
4
Name
Order
Citations
PageRank
Zujun Liu15710.46
Dechun Sun2737.11
Jieling Wang3153.49
Kechu Yi46718.21