Impact of deficient array antenna elements on downlink massive MIMO performance in RIMP and random-lOs channels
Paper in proceedings, 2018

The Over-the-Air (OTA) characterization of large antenna systems need to be time- and cost-efficient. Among others, two potential candidates are OTA measurement environments emulating the Rich Isotropic MultiPath (RIMP) and the Random Line-Of-Sight (Random-LOS) channels. In the present paper we study the capacity loss of downlink massive multi-user multiple-input multiple-output (Massive MIMO) narrowband systems in these channels due to deficient antenna elements. We evaluate the downlink ergodic sum rate for the Zero-Forcing (ZF) and the Matched-Filtering (MF) precoders in these channels. We consider a single-cell system comprising a base station with 50 equidistant isotropic source antenna elements placed λ/2 apart and 5 users each equipped with a single isotropic antenna. No coupling effects between the array elements have been assumed. In the present study we show that both the RIMP and the Random-LOS can be used to identify deficient performance of Massive MIMO arrays.

Author

Andres Alayon Glazunov

Chalmers, Electrical Engineering, Communication and Antenna Systems, Antennas

IET Conference Publications

Vol. 2018 CP741

12th European Conference on Antennas and Propagation, EuCAP 2018
London, United Kingdom,

Indoor small-cell Networks with 3D MIMO Array Antennas (is3DMIMO)

European Commission (Horizon 2020), 2017-01-01 -- 2020-12-31.

Subject Categories

Telecommunications

Communication Systems

Signal Processing

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Latest update

1/21/2019