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Frequency-domain detection without matrix inversions for mm-wave communications with correlated massive MIMO channels

Bento, P. ; Silva, A. P. S. ; Dinis, R. ; Gomes, M. ; Silva, V.

Frequency-domain detection without matrix inversions for mm-wave communications with correlated massive MIMO channels, Proc Vehicular Technology Conference: VTC-Spring , Sydney, Australia, Vol. -, pp. - - -, June, 2017.

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Abstract
Massive MIMO (m-MIMO) schemes operating at mmWave bands are being proposed to be used in next generation wireless systems, bringing new challenges both in terms of detection techniques and the definition of channel models. In this paper, frequency-domain iterative detection schemes which do not require matrix inversions and are suitable for m-MIMO systems employing Single-Carrier with Frequency-Domain Equalization (SC-FDE) modulations are considered. These techniques are evaluated using a general clustered channel model for multilayer m-MIMO systems.
Performance results show that these techniques can approach the Matched Filter Bound (MFB) with just a few iterations, even with significant correlation between different antenna elements.