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Reduced Complexity Joint User and Receive Antenna Selection Algorithms for SLNR-Based Precoding in MU-MIMO Systems

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3 Author(s)
Patcharamaneepakorn, P. ; Centre for Commun. Res. (CCR), Univ. of Bristol, Bristol, UK ; Doufexi, A. ; Armour, S.

This paper investigates the user scheduling strategy of multi-user MIMO (MU-MIMO) systems using a transmit precoding scheme based on maximum signal to leakage and noise ratio (SLNR). When users are equipped with multiple antennas, joint user and receive antenna selection may be performed and is shown to potentially provide superior performance to user selection schemes where users utilise all available antennas, especially at high SNR. To overcome the impractical computational burden of exhaustive methods, two suboptimal algorithms are presented in this paper. The simulation results show that the proposed suboptimal algorithms perform very close to the exhaustive joint user and antenna selection algorithm.

Published in:

Vehicular Technology Conference (VTC Spring), 2012 IEEE 75th

Date of Conference:

6-9 May 2012

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