NDLI: On Blind Adaptive Decision Feedback Equalization for Block QAM Signals

Content Provider	IEEE Xplore Digital Library
Author	Rhodes, A.C. Beasley, A.
Copyright Year	2007
Description	Author affiliation: Morgan State Univ., Baltimore (Rhodes, A.C.; Beasley, A.)
Abstract	A two-phase decision feedback equalizer (DFE) has been proposed for block QAM signals. This equalizer operates initially in blind mode, and then switches to a decision feedback mode once the error level in the equalizer output is determined to be low enough for successful equalization. In this work an automatic condition for switching between these two modes is introduced, which is based on a threshold test of a simple easily computed measure called the 'block average variance'. The blind CMA + AMA equalizer is used to initialize the DFE scheme, and performance evaluation results are presented for a random channel. Performance is evaluated using average symbol error rate (SER). Application of this equalizer to the case of a SIMO channel is discussed.
Starting Page	823
Ending Page	828
File Size	3413836
Page Count	6
File Format	PDF
ISBN	1424410633
DOI	10.1109/CISS.2007.4298423
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-03-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Blind equalizers DFE Quadrature amplitude modulation AWGN Constant Modulus algorithm Switches Nonlinear filters Block QAM transmission Decision feedback equalizers Noise measurement SIMO channel Convergence Intersymbol interference Testing
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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