NDLI: An eigen-based MIMO multiuser scheduler robust to spatial channel correlation

Content Provider	IEEE Xplore Digital Library
Author	Hakju Lee Myeongcheol Shin Chungyong Lee
Copyright Year	2005
Description	Author affiliation: Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea (Hakju Lee; Myeongcheol Shin; Chungyong Lee)
Abstract	An eigen-based MIMO multiuser scheduler which is robust to spatial channel correlation is proposed. The proposed scheduler uses the principal right singular vector for reduced feedback information and exploits the eigen-mode transmission using a precoder matrix, whose columns are the principal right singular vectors of selected users. Since the proposed scheduler uses only each principal eigen channel per user, it is not affected by spatial channel correlation even if all spatial channels are equal, which means only one dominant eigen channel. Moreover, since the distribution of singular value is concentrated on the principal singular value under the spatially correlated environments, more channel gain can be obtained. By computer simulations, it is shown that the proposed scheduler approaches closer to the Sato's bound and has better fairness performance under the moderate spatial channel correlation than the conventional schedulers using partial feedback.
Starting Page	1134
Ending Page	1137
File Size	281246
Page Count	4
File Format	PDF
ISBN	0780388879
ISSN	15502252
DOI	10.1109/VETECS.2005.1543484
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-05-30
Publisher Place	Sweden
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MIMO Robustness Feedback Processor scheduling Transmitting antennas Resource management Receiving antennas Computer simulation Signal to noise ratio Antenna measurements
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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