Millimeter-Wave Propagation Channels vs. Synthetic Beamwidth

Published

December 7, 2018

Author(s)

Roy Sun, Camillo A. Gentile, Jelena Senic, Peter G. Vouras, Peter B. Papazian, Nada T. Golmie, Catherine A. Remley

Abstract

High-gain narrow-beam antennas or beamformed antenna arrays will likely be used in millimeter- wave (mmWave) bands and 5G to mitigate the high path loss. Since many multipath components may be excluded by the narrow beam, the mmWave propagation channels strongly depend on the beamwidth, orientation and shape of the narrow beam. In this paper, a procedure is proposed to sound and model the channels versus synthetic beamwidth. Based on experimental data collected at 60 GHz in an indoor hallway/lobby scenario, the results show the number of multipath components and the delay dispersion of the channel are significantly reduced by the narrow beams. As well, the path loss of an optimized beam-center orientation is over 20 dB smaller than other beam-center orientations. The impact of this study on future 5G mmWave system design is discussed including frequency reuse, antenna design, receiver design, equalization, link budget and so on.

Citation

IEEE Communications Magazine

Volume

56

Issue

12

Pub Type

Journals

Download Paper

https://doi.org/10.1109/MCOM.2018.1800177

Keywords

AoA, AoD, beamforming, mmWave, path gain, RMS delay spread, synthetic beamwidth, wireless system

Citation

Sun, R. , Gentile, C. , Senic, J. , Vouras, P. , Papazian, P. , Golmie, N. and Remley, C. (2018), Millimeter-Wave Propagation Channels vs. Synthetic Beamwidth, IEEE Communications Magazine, [online], https://doi.org/10.1109/MCOM.2018.1800177 (Accessed October 2, 2025)