NDLI: Widely linear receivers for SMT systems with TX/RX frequency-selective I/Q imbalance

Content Provider	IEEE Xplore Digital Library
Author	Ishaque, A. Ascheid, G.
Copyright Year	2014
Description	Author affiliation: Inst. for Commun. Technol. & Embedded Syst., RWTH Aachen Univ., Aachen, Germany (Ishaque, A.; Ascheid, G.)
Abstract	Staggered multitone (SMT) modulation scheme has received a considerable attention recently due to its higher spectral efficiency compared to the conventional OFDM systems and robustness to frequency offset and Doppler spread. However, channel equalization in SMT is complicated by the so called intrinsic interference as a result of non-flat channel response in each subchannel. In the presence of I/Q imbalance (IQI), this task becomes even more challenging as the image band and its intrinsic neighborhood contaminates the received signal. This paper deals with widely linear schemes for the effective channel equalization using time-domain and frequency-domain methodologies. Further iterative improvements are proposed for the later, combining enhanced equalization with per-subchannel-pair processing after intrinsic interference cancellation. The proposed techniques are simulated for both the uncoded and coded systems suffering from frequency-selective IQI and their effectiveness with multipath channels is demonstrated.
Starting Page	800
Ending Page	805
File Size	923368
Page Count	6
File Format	PDF
ISBN	9781479949120
DOI	10.1109/PIMRC.2014.7136274
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-02
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	OFDM Correlation Interference cancellation Eigenvalues and eigenfunctions Contamination Receivers interference cancellation SMT fading channels equalizer improper signals I/Q imbalance
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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