NDLI: MMSE equalization in presence of transmitter and receiver IQ imbalance

Content Provider	IEEE Xplore Digital Library
Author	Lipardi, M. Mattera, D. Sterle, F.
Copyright Year	2007
Description	Author affiliation: Univ. degli Studi di Napoli Federico II, Naples (Lipardi, M.; Mattera, D.; Sterle, F.)
Abstract	The wide spread of low-cost fabrication technologies gives rise to unpredictable imperfections associated with the analog stages which perform the frequency conversion. More specifically, it is well known that such stages suffer from the in-phase (I) and quadrature (Q) imbalance. In this paper, with reference to a single-carrier time-dispersive noisy channel, we address the receiver design when both the transmitter and the receiver are affected by the IQ imbalance, and we propose to resort to the widely linear filtering in order to improve the performances of the conventional minimum mean square error (MMSE) linear equalizer. The results show that the adoption of WL filters allows one to achieve considerable gains both in terms of MMSE and symbol error rate, with a limited increase in the computational complexity of the equalization stage.
Starting Page	165
Ending Page	168
File Size	863523
Page Count	4
File Format	PDF
ISBN	9781424412754
DOI	10.1109/WDDC.2007.4339402
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-04
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fabrication Transmitters Equalizers Error analysis Filtering Nonlinear filters Signal processing CMOS technology Frequency conversion Telecommunications
Content Type	Text
Resource Type	Article

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