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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

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Published on: March 20, 2017

Some practical constraints and solutions for optical camera communication.

Weijie Liu¹, Zhengyuan Xu¹

¹CAS Key Laboratory of Wireless-Optical Communications, University of Science and Technology of China, Hefei, Anhui 230027, People's Republic of China.

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences

|March 3, 2020

Summary

This summary is machine-generated.

Optical camera communication (OCC) leverages smartphone cameras for low-cost data transmission, overcoming radio frequency limitations. Solutions are presented for practical challenges like sensor limitations and link blockage, enabling reliable visible light communication.

Keywords:

covert communication non-line of sight optical camera communication optical wireless communication region of interest rolling shutter

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Quasi-light Storage for Optical Data Packets

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Published on: February 6, 2014

Area of Science:

Optical wireless communication
Visible light communication
Optical camera communication (OCC)

Background:

Radio frequency communication faces spectrum limitations for high data rate demands.
Optical wireless communication, specifically visible light communication, offers a vast spectrum.
Ubiquitous cameras in consumer electronics enable low-cost optical camera communication (OCC) systems.

Purpose of the Study:

To provide an overview of optical camera communication (OCC) systems.
To address practical constraints in OCC, including sensor limitations and link blockage.
To introduce solutions for enhancing OCC performance and reliability.

Main Methods:

Overview of existing OCC systems and their components.
Analysis of practical constraints: sensor frame rate, rolling shutter, visual quality, and link blockage.
Introduction of solutions: advanced data modulation, novel camera designs, signal post-processing, and non-line-of-sight OCC.

Main Results:

Identified key challenges in implementing OCC systems.
Proposed and reviewed various techniques to mitigate identified constraints.
Explored non-line-of-sight OCC using indoor reflections and outdoor atmospheric scattering for link connectivity.

Conclusions:

OCC presents a viable, low-cost alternative to traditional wireless communication.
Overcoming practical constraints is crucial for widespread OCC adoption.
Future research directions include further optimization of non-line-of-sight links and system integration.