Antenna array configurations for massive MIMO outdoor base stations
Document typeConference report
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessRestricted access - publisher's policy
Massive MIMO predicts unprecedented capacity and energy efficiency improvements in future networks, by the use of base stations with hundreds of antennas. However the crucial question of determining suitable, or even optimal, antenna hardware solutions for deploying such a large number of antennas in constrained physical spaces is still open. Here we analyse the potential benefits of using compact arrays, dual-polarized arrays, and 2D arrays in outdoor scenarios using a realistic 3D spatial channel model and accurate antenna electromagnetic simulations. In particular we show that it is detrimental to reduce the distance between elements below ¿/3. Actually, better performances can be achieved by increasing the number of antennas using dual polarization instead (if random polarization of user antennas is assumed). We also show that good performance can be achieved by using 2D arrays, but at the expense of an increased number of total elements when compared to horizontal linear arrays. © 2014 IEEE.
CitationArtiga, X.; Perruisseau, J.; Perez, A. Antenna array configurations for massive MIMO outdoor base stations. A: IEEE Sensor Array and Multichannel Signal Processing Workshop. "2014 IEEE 8th Sensor Array and Multichannel Signal Processing Workshop (SAM) took place June 22-25, 2014 in A Coruña, Spain". Coruña: Institute of Electrical and Electronics Engineers (IEEE), 2014, p. 281-284.
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