NDLI: Memory-based opportunistic multi-user beamforming

Content Provider	IEEE Xplore Digital Library
Author	Kountouris, M. Gesbert, D.
Copyright Year	2005
Description	Author affiliation: France Telecom R&D, Issy-les-Moulineaux (Kountouris, M.)
Abstract	A scheme exploiting memory in opportunistic multiuser beamforming is proposed. The scheme builds on recent advances realized in M. Sharif and B. Hassibi, 2005, in the area of multi-user downlink preceding and scheduling based on partial transmitter channel state information (CSIT). Although the preceding and scheduling done in M. Sharif and B. Hassibi, 2005 is optimal within the set of unitary precoders, it is only so asymptotically for large number of users. Secondly, this scheme is unable to exploit potential time correlation of the channel. In this paper, we show (1) that exploiting memory in the transmitter allows to fill the gap to optimality for fixed (even low) number of users for time correlated channels, (2) how such schemes can be extended to take fairness into account in the proportional fair sense
Starting Page	1426
Ending Page	1430
File Size	218300
Page Count	5
File Format	PDF
ISBN	0780391519
DOI	10.1109/ISIT.2005.1523578
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-09-04
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Array signal processing Transmitters Feedback Transmitting antennas Base stations Downlink MIMO Access protocols Media Access Protocol Antenna feeds
Content Type	Text
Resource Type	Article

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