Deep learning enabled beam tracking for non-line of sight millimeter wave communications

Wang, R., Valente Klaine, P. , Onireti, O. , Sun, Y. , Imran, M. and Zhang, L. (2021) Deep learning enabled beam tracking for non-line of sight millimeter wave communications. IEEE Open Journal of the Communications Society, 2, pp. 1710-1720. (doi: 10.1109/OJCOMS.2021.3096118)

Abstract

To solve the complex beam alignment issue in non-line-of-sight (NLOS) millimeter wave communications, this paper presents a deep neural network (DNN) based procedure to predict the angle of arrival (AOA) and angle of departure (AOD) both in terms of azimuth and elevation, i.e., AAOA/AAOD and EAOA/EAOD. In order to evaluate the performance of the proposed procedure under practical assumptions, we employ a trajectory prediction method by considering dynamic window approach (DWA) to estimate the location information of the user equipment (UE), which is utilized as the input parameter of the trained DNN to generate the prediction of AAOA/AAOD and EAOA/EAOD. The robustness of the prediction procedure is analyzed in the presence of prediction errors, which proves that the proposed DNN is a promising tool to predict AOA and AOD in NLOS scenarios based on the estimated UE location. Simulation results shows that the prediction errors of the AOA and AOD can be maintained within an acceptable range of ±2∘.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Zhang, Professor Lei and Onireti, Oluwakayode and Valente Klaine, Mr Paulo and Sun, Dr Yao and Wang, Ruiyu and Imran, Professor Muhammad
• Authors: Wang, R., Valente Klaine, P., Onireti, O., Sun, Y., Imran, M., and Zhang, L.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy
• Journal Name: IEEE Open Journal of the Communications Society
• Publisher: IEEE
• ISSN: 2644-125X
• ISSN (Online): 2644-125X
• Published Online: 09 July 2021
• Copyright Holders: Copyright © 2021 The Authors
• First Published: First published in IEEE Open Journal of the Communications Society 2: 1710-1720
• Publisher Policy: Reproduced under a Creative Commons License