A CMOS Current Mirroring Integration Based Visible Light Receiver for Intelligent Transport Systems

Moaaz Ahmed, Amine Bermak

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

Abstract

Visible light communication (VLC) is gaining immense popularity for its inherent energy-efficient and freely available wide unlicensed spectrum in a range of applications that include indoor positioning, medical and navigational equipments and smart vehicular networks. In this paper, we present a current mirroring integration (CMI) based VLC receiver for intelligent transport systems. Polarization property of light is used to reject ambient light interference by sending and receiving differential data over adjacent channels. Each channel transmit and receive complimentary data through a set of linear polarizers. The receiver front-end is based on differential CMI topology which integrates the photocurrent over a pair of capacitors followed by a differential charge transfer amplifier (CTA) which performs amplification of differential optical signal and cancellation of background (DC) light up to 100μA. This is followed by a differential comparator with D-flip flop to make decision and latch the resultant data in digital format. Designed and simulated in 0.18μm CMOS process, the proposed VLC receiver front-end consumes 42μA current and achieve data rate of 5MHz with energy consumption of 15pJ/bit.

Original languageEnglish
Title of host publication2019 IEEE 62nd International Midwest Symposium on Circuits and Systems, MWSCAS 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages566-569
Number of pages4
ISBN (Electronic)9781728127880
DOIs
Publication statusPublished - Aug 2019
Event62nd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2019 - Dallas, United States
Duration: 4 Aug 20197 Aug 2019

Publication series

NameMidwest Symposium on Circuits and Systems
Volume2019-August
ISSN (Print)1548-3746

Conference

Conference62nd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2019
CountryUnited States
CityDallas
Period4/8/197/8/19

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Keywords

  • charge transfer amplifier
  • Current mirror integration
  • polarization
  • receiver front-end
  • visible light communication

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Ahmed, M., & Bermak, A. (2019). A CMOS Current Mirroring Integration Based Visible Light Receiver for Intelligent Transport Systems. In 2019 IEEE 62nd International Midwest Symposium on Circuits and Systems, MWSCAS 2019 (pp. 566-569). [8884993] (Midwest Symposium on Circuits and Systems; Vol. 2019-August). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MWSCAS.2019.8884993