Improving Spectral and Power Efficiencies of a MISO-VLC System via Hybrid Multi-Objective Optimization

Helder Rocha, Maria Pontes, Marcelo Segatto, Heinrich Wörtche, Jair Silva, Wesley Da Silva Costa

Research output: Chapter in Book/Report/Conference proceedingContribution to conference proceedingAcademicpeer-review

Abstract

This study presents a methodology designed to optimize various parameters of each access point within a Multiple-Input Single-Output (MISO) Visible Light Communication (VLC) system. The primary objective is to enhance both power and spectral efficiencies. A MISO-VLC model is presented based on experimental evaluations and a problem formulation considering intermodulation distortions based on Orthogonal Frequency Division Multiplexing modulation. A Hybrid Multi-Objective Optimization (HMO) approach is proposed, combining the Non-Sorting Genetic Algorithm III (NSGA-III) and the Multi-objective Grey Wolf Optimization (MOGWO). The proposed HMO's success was validated by a 66 % reduction in transmitted power, maintaining the Error Vector Magnitude (EVM) performance metrics even at lower power transmission levels and minimizing the guard band to its lower bound.
Original languageEnglish
Title of host publication2024 14th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)
PublisherInstitute of Electrical and Electronics Engineers
Pages545-550
Number of pages6
ISBN (Print)979-8-3503-4875-0
DOIs
Publication statusPublished - 23 Aug 2024
Event2024 14th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) - Rome, Italy
Duration: 17 Jul 202419 Jul 2024

Conference

Conference2024 14th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)
Period17/07/2419/07/24

Keywords

  • MISO communication
  • modulation
  • OFDM
  • power transmission
  • receivers
  • spectral efficiency
  • vectors
  • optimization
  • orthogonal frequency division multiplexing
  • visible light communication

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