Skip to main navigation Skip to search Skip to main content

Beam Domain Massive MIMO Optical Communications with Power Allocation and Movable Lens

  • Jingrui Li
  • , Songchun Xu
  • , Jiebo Shuai
  • , Ziteng Zhang
  • , Macheng Cui
  • , Bingcheng Zhu*
  • , Chen Sun
  • , Lanting Fang
  • *Corresponding author for this work
  • School of Information Science and Engineering
  • School of Electronic Science and Engineering
  • School of Biological Science and Medical Engineering
  • School of Cyber Science and Engineering

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Traditional visible light communication systems do not exploit narrow beams so their power efficiency is limited. Therefore, some recent works suggested using a lens and a light-emitting diode (LED) array to generate narrow beams towards the user terminal (UT). However, the generated beams have blind areas and are not optimized with respect to the coordinate of the UT. In this paper, we propose a simple solution by determining which LEDs should be lighted in the array and how to distribute the restricted transmit power based on the coordinate of UT to maximize the received power in different cases. The scheme can realize beam direction adjustment and maximize energy efficiency whether the LEDs have power constraints or not. Simulation results show that there is a close relationship between the channel gain and the power allocation scheme, and the LED-to-lens distance can also be optimized to improve the received power.

Original languageEnglish
Title of host publicationICICN 2023 - 2023 IEEE 11th International Conference on Information, Communication and Networks
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages183-188
Number of pages6
ISBN (Electronic)9798350314014
DOIs
Publication statusPublished - 2023
Externally publishedYes
Event2023 IEEE 11th International Conference on Information, Communication and Networks, ICICN 2023 - Hybrid, Xi'an, China
Duration: 17 Aug 202320 Aug 2023

Publication series

NameICICN 2023 - 2023 IEEE 11th International Conference on Information, Communication and Networks

Conference

Conference2023 IEEE 11th International Conference on Information, Communication and Networks, ICICN 2023
Country/TerritoryChina
CityHybrid, Xi'an
Period17/08/2320/08/23

Keywords

  • movable lens
  • narrow beams
  • power allocation algorithm

Fingerprint

Dive into the research topics of 'Beam Domain Massive MIMO Optical Communications with Power Allocation and Movable Lens'. Together they form a unique fingerprint.

Cite this