On the Sparsity and Aperiodicity of a Base Station Antenna Array in a Downlink MU-MIMO Scenario
Konferensbidrag (offentliggjort, men ej förlagsutgivet), 2018

An application study into irregular sparse arrays (ISAs) is proposed to function as base station antennas (BSAs) in a mm-wave multi-user multiple-input multiple-output (MU-MIMO) system. The results show that the sum rate capacity of ISAs can be increased relative to regularly-spaced BSA arrays with half a wavelength element separation, especially for a high number of users. This is due to the narrower beams formed by the larger antenna apertures of sparse arrays. Furthermore, the aperiodic distribution of antenna elements alleviates the problem of grating lobes in sparse arrays and is seen to improve the average power consumption of power amplifiers at the same time.

Base station antenna, Irregular sparse array



Navid Amani

Chalmers, Elektroteknik, Kommunikationssystem, informationsteori och antenner, Antennsystem

Rob Maaskant

Chalmers, Elektroteknik, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

W.A.van Cappellen

Netherlands Institute for Radio Astronomy (ASTRON)

International Symposium on Antennas and Propagation (ISAP 2018)
Busan, South Korea,


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