TY - GEN
T1 - A CMOS Current Mirroring Integration Based Visible Light Receiver for Intelligent Transport Systems
AU - Ahmed, Moaaz
AU - Bermak, Amine
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - 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.
AB - 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.
KW - Current mirror integration
KW - charge transfer amplifier
KW - polarization
KW - receiver front-end
KW - visible light communication
UR - https://www.scopus.com/pages/publications/85075026801
U2 - 10.1109/MWSCAS.2019.8884993
DO - 10.1109/MWSCAS.2019.8884993
M3 - Conference contribution
AN - SCOPUS:85075026801
T3 - Midwest Symposium on Circuits and Systems
SP - 566
EP - 569
BT - 2019 IEEE 62nd International Midwest Symposium on Circuits and Systems, MWSCAS 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 62nd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2019
Y2 - 4 August 2019 through 7 August 2019
ER -