On the outage performance of line-of-sight massive MIMO with a fixed-length uniform linear sparse array

A. Farsaei, N. Amani, A. Alvarado, F.M.J. Willems, U. Gustavsson, R. Maaskant

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Increasing the inter-element spacing of a uniform linear sparse array results in reducing the mutual coupling and simplifying the heat dissipation control of the array. However, increasing the inter-element spacing may result in the appearance of grating lobes in the field-of-view (FoV). In this paper, 0.05-outage capacity is used as the performance metric to optimize the inter-element spacing for a given array size in line-of-sight scenarios. For the case of two users, we propose to increase the inter-element spacing as long as the 0.05-outage capacity does not reduce more than 1% compared to the capacity achieved when the two users have orthogonal channel vectors. Radiated power at the base station is adjusted to have the same effective isotropic radiated power for different arrays. Simulation results for an array size of 40λ show that for FoVs of 60° to 120°, the inter-element spacing can be increased from 0.5λ to more than 1.14λ.

Originele taal-2Engels
TitelProceedings of the 2019 9th IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications, APWC 2019
Plaats van productiePiscataway
UitgeverijInstitute of Electrical and Electronics Engineers
Pagina's345-348
Aantal pagina's4
ISBN van elektronische versie978-1-7281-0566-6
DOI's
StatusGepubliceerd - 1 sep 2019
Evenement9th IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications, APWC 2019 - Granada, Spanje
Duur: 9 sep 201913 sep 2019

Congres

Congres9th IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications, APWC 2019
LandSpanje
StadGranada
Periode9/09/1913/09/19

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    Farsaei, A., Amani, N., Alvarado, A., Willems, F. M. J., Gustavsson, U., & Maaskant, R. (2019). On the outage performance of line-of-sight massive MIMO with a fixed-length uniform linear sparse array. In Proceedings of the 2019 9th IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications, APWC 2019 (blz. 345-348). [8870356] Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/APWC.2019.8870356