Title
A CMOS Transimpedence Amplifier With Ambient Light Rejection for Visible Light Communication in Intelligent Transport Systems
Abstract
A fully differential transimpedence amplifier (TIA) that serves as a receiver front-end for visible light communication (VLC) is proposed. The TIA incorporates an ambient light rejection circuit in the form of a floating active inductor (FAI) which can effectively bypass photocurrent (upto 50μA) and allows the subsequent transimpedence stage to only integrate the modulated photocurrent. This helps to avoid receiver saturation when exposed to excessive optical interference (i.e. large DC photocurrent) in outdoor environment of intelligent transport systems (ITS). Implemented in TSMC 0.18μm CMOS process, the proposed VLC receiver front-end consumes 220 μA bias current and exhibit transimpedence gain of 98dBΩ. Our design is aimed for VLC based receivers in intelligent transport systems by enabling active tracking between VLC transmitter and receiver using the same degree of polarization of light.
Year
DOI
Venue
2019
10.1109/IWCMC.2019.8766535
2019 15th International Wireless Communications & Mobile Computing Conference (IWCMC)
Keywords
Field
DocType
Transimpedence amplifier,visible light communication,receiver front-end,active inductor
Photocurrent,Transmitter,Computer science,Computer network,Inductor,Electronic engineering,Visible light communication,CMOS,Interference (wave propagation),Biasing,Amplifier
Conference
ISSN
ISBN
Citations 
2376-6492
978-1-5386-7748-3
2
PageRank 
References 
Authors
0.42
5
2
Name
Order
Citations
PageRank
Moaaz Ahmed120.42
Amine Bermak249390.25