NDLI: Block-Echelonization Algorithm for Multi-User MIMO Systems

Content Provider	IEEE Xplore Digital Library
Author	Heunchul Lee Hochwald, B.M. Inkyu Lee
Copyright Year	2007
Description	Author affiliation: Korea Univ., Seoul (Heunchul Lee; Hochwald, B.M.; Inkyu Lee)
Abstract	In this paper, we present a new transmission technique for the downlink of a multiuser multiple-input multiple- output (MIMO) system. Recently, the block-diagonalization (BD) algorithm has been proposed for the multiuser MIMO downlink where each user has multiple antennas. The key idea of the BD scheme is to eliminate all multiuser interference by transmitting each user's data along the nullspace of the other users' channel matrix. However, the BD algorithm based on the zero- interference condition is not a proper choice when the interference is known at the transmitter noncausally. In this paper, we propose a block-echelonization (BE) algorithm for utilizing the noncausally known interference at the transmitter. The sum rate analysis and simulation results show the effectiveness of the proposed multiuser scheme.
Starting Page	3159
Ending Page	3163
File Size	160209
Page Count	5
File Format	PDF
ISBN	9781424410422
DOI	10.1109/GLOCOM.2007.598
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-11-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MIMO Downlink Transmitters Base stations Receiving antennas Transmitting antennas Interchannel interference Electronic mail Interference elimination Information technology
Content Type	Text
Resource Type	Article

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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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