NDLI: ZF-DFE transceiver for time-varying MIMO channels with channel-independent temporal precoder

Content Provider	IEEE Xplore Digital Library
Author	Chih-Hao Liu Vaidyanathan, P.P.
Copyright Year	2010
Description	Author affiliation: Dept. of Electrical Engineering, MC 136-93, California Institute of Technology, Pasadena, CA 91125, USA (Chih-Hao Liu; Vaidyanathan, P.P.)
Abstract	This paper considers the DFE transceiver optimization for time-varying memoryless MIMO channels under zero-forcing (ZF) constraint. For time-varying channels, the uncoded average BER of the conventional geometric mean decomposition (GMD) based systems is not minimized because of the diverse arithmetic MSEs at different block times. To minimize the BER, a new GMD transceiver is proposed, in which the data vectors are grouped into space-time blocks (ST-blocks). A channel independent-temporal precoder is superimposed on the conventional blockwise GMD for the equalization of arithmetic MSEs across different blocks. So, the proposed system can take advantage of both the temporal and spatial diversity offered by time-varying MIMO channels. At moderate high SNR, corresponding to reasonable BER, there exists a class of optimal channel-independent temporal precoders, e.g., DFT and Hadamard matrices, for the minimization of average BER. Furthermore, simulation results show that the average BER performance of the proposed system improves with ST-block size and converges at moderate ST-block $size.^{1}$
Starting Page	3525
Ending Page	3528
File Size	347530
Page Count	4
File Format	PDF
ISBN	9781424453085
DOI	10.1109/ISCAS.2010.5537823
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-30
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transceivers MIMO Bit error rate Arithmetic Decision feedback equalizers Constraint optimization Time-varying channels Time varying systems Error correction Error correction codes
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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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