NDLI: Trellis Precoding for the Multi-User Environment

Content Provider	IEEE Xplore Digital Library
Author	Callard, A. Khandani, A. Saleh, A.
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont. (Callard, A.; Khandani, A.)
Abstract	When transmitting over the multi-user MIMO broadcast channel, the transmitter has both knowledge of, and control over, the interference between users. Methods based on interference cancellation focus only on the transmitter's knowledge of the interference. This paper proposes a method which takes advantage of the transmitter's control over the interference among users. This is done by considering all users simultaneously. First, redundancy is introduced into the transmitted data similarly to the trellis shaping method, then the mean square error (MSE) is minimized by exploiting this redundancy. The proposed method is unique in that it considers all users simultaneously, and that the MSE is minimized rather than the transmit power. This method can achieve a BER of $10^{-5},$ only 1 dB above the minimum signal to noise ratio predicted by the capacity of the channel. Depending on the channel parameters, this demonstrates a 1-3 dB improvement over the best reported results. The improvement in the performance is achieved at the price of an increase in the complexity (equivalent to the Viterbi decoding of a trellis with $2^{2N}$ states for N transmit antennas).
Starting Page	414
Ending Page	419
File Size	299689
Page Count	6
File Format	PDF
ISBN	1424403499
DOI	10.1109/CISS.2006.286503
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-03-22
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interference cancellation Transmitters Channel capacity Viterbi algorithm Redundancy Bit error rate Mean square error methods Broadcasting MIMO Signal to noise ratio
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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