Inverse design of LED arrangement for visible light communication systems

Huanhuan Zheng, Jian Chen, Changyuan Yu, Mohan Gurusamy

Research output: Journal article publicationJournal articleAcademic researchpeer-review

11 Citations (Scopus)

Abstract

By using the concept of inverse design, the LED distribution can be formulated as a convex optimization problem and resolved accordingly. We show that sufficient brightness and uniform signal to noise ratio (SNR) can be achieved within the indoor coverage by using the proposed optimal LED arrangement, thus enabling the terminal mobility for indoor VLC. In addition, the analysis of delay spread distribution over the receiving plane shows that the design exhibits enhanced tolerance of inter-symbol interference (ISI). With the consideration of cabling cost for practical implementation, the suboptimal LED arrangement design is also investigated. Numerical results indicate that the suboptimal design can reduce the power consumption of the system with acceptable performance degradation.
Original languageEnglish
Pages (from-to)615-623
Number of pages9
JournalOptics Communications
Volume382
DOIs
Publication statusPublished - 1 Jan 2017

Keywords

  • Convex optimization
  • LED arrangement design
  • Signal to noise ratio
  • Visible light communication

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this