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From Single user to Multiuser Communications: Shifting the MIMO paradigm (2007)
| Venue: | IEEE Sig. Proc. Magazine |
| Citations: | 46 - 13 self |
BibTeX
@INPROCEEDINGS{Gesbert07fromsingle,
author = {David Gesbert and Marios Kountouris and Robert W. Heath and Chan-byoung Chae and Thomas Sälzer},
title = {From Single user to Multiuser Communications: Shifting the MIMO paradigm},
booktitle = {IEEE Sig. Proc. Magazine},
year = {2007}
}
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Abstract
In multiuser MIMO networks, the spatial degrees of freedom offered by multiple antennas can be advantageously exploited to enhance the system capacity, by scheduling multiple users to simultaneously share the spatial channel. This entails a fundamental paradigm shift from single user communications, since multiuser systems can experience substantial benefit from channel state information at the transmit-ter and, at the same time, require more complex scheduling strategies and transceiver methodologies. This paper reviews multiuser MIMO communication from an algorithmic perspective, discussing performance gains, tradeoffs, and practical considerations. Several approaches including non-linear and linear channel-aware precoding are reviewed, along with more practical limited feedback schemes that require only partial channel state information. The interaction between precoding and scheduling is discussed. Several promising strategies for limited multiuser feedback design are looked at, some of which are inspired from the single user MIMO precoding scenario while others are fully specific to the multiuser setting. 1 DRAFT
Keyphrases
single user mimo paradigm multiuser communication mimo communication limited multiuser feedback design partial channel state information algorithmic perspective multiple antenna complex scheduling strategy multiuser setting spatial degree linear channel-aware precoding spatial channel several approach practical limited feedback scheme single user communication channel state information multiple user system capacity multiuser mimo network performance gain several promising strategy fundamental paradigm shift practical consideration transceiver methodology single user mimo substantial benefit
