Optimal user pairing in downlink MU-MIMO with transmit precoding

Ari Hottinen; Emanuele Viterbo

4th International ICST Workshop on Resource Allocation in Wireless Networks

Research Article

Optimal user pairing in downlink MU-MIMO with transmit precoding

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Cite: BibTeX Plain Text

@INPROCEEDINGS{10.4108/ICST.WIOPT2008.3255,
    author={Ari Hottinen and Emanuele Viterbo},
    title={Optimal user pairing in downlink MU-MIMO with transmit precoding},
    proceedings={4th International ICST Workshop on Resource Allocation in Wireless Networks},
    publisher={IEEE},
    proceedings_a={RAWNET},
    year={2008},
    month={8},
    keywords={Capacity Scheduling beamforming MIMO assignment problem.},
    doi={10.4108/ICST.WIOPT2008.3255}
}

Ari Hottinen
Emanuele Viterbo
Year: 2008
Optimal user pairing in downlink MU-MIMO with transmit precoding
RAWNET
IEEE
DOI: 10.4108/ICST.WIOPT2008.3255

Ari Hottinen¹^,*, Emanuele Viterbo²^,*

1: Nokia Research Center, P.O. Box 407, FI-00045, NOKIA GROUP, Finland.
2: D.E.I.S., Universita della Calabria, Arcavacata di Rende, Italy.

*Contact email: ari.hottinen@nokia.com, viterbo@deis.unical.it

Abstract

In this paper consider a downlink multiuser-MIMO transmission system in which at most two users can transmit simultaneously on different spatial channels or beams. We show how to find the optimal user subsets for K users in a system where interuser interference is mitigated via transmit precoding and sum capacity is maximized using a linear programming algorithm that defines the optimal user subsets under a particular fairness criterion.

Keywords: Capacity Scheduling beamforming MIMO assignment problem.

Published: 2008-08-01
Publisher: IEEE
Modified: 2010-05-16

: http://dx.doi.org/10.4108/ICST.WIOPT2008.3255