NDLI: MIMO Broadcast Communications Using Block-Diagonal Uniform Channel Decomposition (BD-UCD)

Content Provider	IEEE Xplore Digital Library
Author	Shaowei Lin Ho, W.W.L. Ying-Chang Liang
Copyright Year	2006
Description	Author affiliation: Inst. for Infocomm Res. (Shaowei Lin; Ho, W.W.L.; Ying-Chang Liang)
Abstract	Variable-rate coding for a multiple input multiple output (MIMO) channel increases transceiver complexity. In single user case, the uniform channel decomposition (UCD) scheme overcomes this problem by generating decoupled subchannels with identical SNRs so that equal-rate (ER) coding can be applied. In this paper, the solution is extended to the multi-user broadcast case. The block-diagonal geometric mean decomposition (BD-GMD) is used to design a capacity-achieving scheme, called the block-diagonal UCD (BD-UCD). It allows each user to apply ER coding on its own subchannels. An efficient near-optimal algorithm for multiuser uplink beamforming with SINR constraints is also proposed. Using this and duality, a scheme that allows ER coding to be applied to every subchannel of every user is designed. Simulations have shown that both schemes have superior BER performance and higher achievable sum-rates than conventional schemes
Sponsorship	IEEE COM
Starting Page	1
Ending Page	5
File Size	160315
Page Count	5
File Format	PDF
ISBN	1424403294
DOI	10.1109/PIMRC.2006.253931
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-09-11
Publisher Place	Finland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MIMO Broadcasting Erbium Signal to noise ratio User centered design Mobile communication Array signal processing Matrix decomposition Transceivers Transmitters
Content Type	Text
Resource Type	Article

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