MIMO Channel Capacity Gains in mm-Wave LOS Systems with Irregular Sparse Array Antennas
Paper in proceedings, 2017

This paper investigates potential advantages of linear irregular sparse antenna arrays over their regular counterparts in a mm-wave line-of-sight (LOS) multiple-input multiple-output (MIMO) scenario. The comparison is based on numerical computations of MIMO eigenvalues of the corresponding channel matrices and the resulting channel capacity. Identical linear antenna arrays are assumed at the transmitter and the receiver sides. The compared regular and irregular arrays have an equal aperture length. Mutual coupling between elements within an array is assumed negligible due to the array sparsity. A 4×4 MIMO channel is studied, where we change the position of the two inner elements to obtain irregularly spaced arrays. It is shown that for some specific distances between TX and RX, the irregular array distribution can significantly improve the channel capacity in LOS. This observation opts for reconfigurable array designs.

Irregular array

5G

Channel capacity

LOS multiple-input multiple-output (MIMO)

Author

Navid Amani

Chalmers, Signals and Systems, Communication and Antenna Systems, Antennas

Carlo Bencivenni

Chalmers, Signals and Systems, Communication and Antenna Systems, Antennas

Andres Alayon Glazunov

Chalmers, Signals and Systems, Communication and Antenna Systems, Antennas

Marianna Ivashina

Chalmers, Signals and Systems, Communication and Antenna Systems, Antennas

Rob Maaskant

Technische Universiteit Eindhoven

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

APWC 2017

IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications
Verona , ,

Silicon-based Ka-band massive MIMO antenna systems for new telecommunication services (SILIKA)

European Commission (Horizon 2020), 2016-09-01 -- 2020-08-31.

Areas of Advance

Information and Communication Technology

Subject Categories

Telecommunications

DOI

10.1109/APWC.2017.8062297

More information

Latest update

10/11/2018