3D Beamforming with Multi-Active Multi-Passive Antenna Arrays Using Stochastic Optimization

Georgios K. Papageorgiou, Mathini Sellathurai, Dimitrios K. Ntaikos, Constantinos B. Papadias

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we consider the 3D beamforming with Multi-Active Multi-Passive (MAMP) antenna arrays. For the optimization of the hybrid array's active elements' (AEs) weights and passive elements' (PEs) loads, we propose a novel algorithm, i.e., the alternating optimization-stochastic 3D beamforming algorithm (AO-S3DBA). The scheme is built on a generalized cost function and alternates between the optimization of the loads and weights. Despite the dramatic increase in data points, we managed to decrease the algorithm's complexity by employing Adam, a popular accelerator for stochastic optimization, for the update of the optimization variables. We present simulation results, where the proposed MAMP array can successfully emulate the beam of a uniform rectangular array (URA) with the use of 50% less AEs and with beam steering capabilities towards various azimuth and elevation directions. We believe that this newly proposed type of hybrid transceiver offers a good trade-off between cost and performance, which can be particularly useful in many industrial and Internet-of-Things (IoT) applications, where the deployment of a large number of transceivers / sensors directly affects the application's total cost.

Original languageEnglish
Title of host publication2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
PublisherIEEE
ISBN (Electronic)9781728154787
DOIs
Publication statusPublished - 3 Aug 2020
Event21st IEEE International Workshop on Signal Processing Advances in Wireless Communications 2020 - Atlanta, United States
Duration: 26 May 202029 May 2020

Publication series

NameIEEE Workshop on Signal Processing Advances in Wireless Communications
ISSN (Electronic)1948-3252

Conference

Conference21st IEEE International Workshop on Signal Processing Advances in Wireless Communications 2020
Abbreviated titleSPAWC 2020
CountryUnited States
CityAtlanta
Period26/05/2029/05/20

Keywords

  • 3D beamforming
  • Adam
  • alternating optimization stochastic 3D beamforming algorithm
  • hybrid arrays
  • Multi-Active multi-passive MAMP arrays

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Information Systems

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  • Cite this

    Papageorgiou, G. K., Sellathurai, M., Ntaikos, D. K., & Papadias, C. B. (2020). 3D Beamforming with Multi-Active Multi-Passive Antenna Arrays Using Stochastic Optimization. In 2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) [9154231] (IEEE Workshop on Signal Processing Advances in Wireless Communications). IEEE. https://doi.org/10.1109/SPAWC48557.2020.9154231