Massive MIMO Antenna Array Design and Challenges

Authors: Dr Yue Gao

Source: FERMAT, Volume 13, Communication 9, Sept.-Oct., 2016

Abstract: : Recent advance on Multiple Input and Multiple Output (MIMO) [1] have led the transformation from a point-to-point single user MIMO to multi-user MMO (MU-MIMO). The MU-MIMO refers to a base station (BS) with multiple antennas simultaneously serves a set of single-antenna users, and the multiplexing gain can be shared by all users. With the staggering increase of wireless data traffic, massive MIMO enhancing MU-MIMO benefits has shown over 10 times spectral efficiency increase over a pointto-point MIMO under realistic propagation environment with simpler signal processing algorithms. Massive MIMO is also known as “Large-Scale Antenna Systems”, “Very Large MIMO”, “Hyper MIMO”, “Full-Dimension MIMO” and “ARGOS”), where each BS is equipped with orders of magnitude more antennas, e.g., 100 or more. This has brought a new paradigm for antennas and propagation society to tackle challenges to design over 100 antenna ports at base station with a set of new requirements. This introduction briefly reviews the progress from MIMO to massive MIMO, and addresses the key challenges for massive MIMO antenna array design via an example antenna array design [2].

Index Terms: MIMO, MU-MIMO, Massive MIMO, large-scale antenna array

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Massive MIMO Antenna Array Design and Challenges