This book offers an overview of the state-of-the-art of visible light communication systems across emerging areas of increasing importance within the field. It is divided into two parts, with the first describing the latest developments in data communication using VLC technologies. It includes the fundamental mechanics of the semiconductor light-emitting diodes (LEDs) used in academic and commercial systems, areas of high-speed circuit design including circuit diagrams and small-signal analysis. Exotic modulation formats and digital signal processing including machine learning architectures are then covered before the book looks at emerging areas within the VLC research community, including colour balancing and colour-based modulation. The second part of the book looks at applications that do not consider indoor data communication in general, such as localisation/positioning, sensing and the intelligent transport systems paradigm. Finally, the completely new area of oxygen sensing is also included with the aim of inspiring researchers to test news fields and apply ideas across domains.
Visible Light is aimed at new researchers entering the VLC domain, particularly at the PhD stage, or those wishing to explore new areas within it, and readers should be comfortable with undergraduate-level mathematics and physics to make the most of the derivations and descriptions written throughout the book. It will provide researchers with a solid summary of the global progress in VLC systems that can be used to generate new ideas and advancements in the field.
Key Features
- A new approach to VLC literature: describing both communications and new applications
- Enables interdisciplinary new approaches to research and industry through the collection of ideas from separate disciplines that researchers and industrialists may not be aware of
- Discussion of technological enablers from semiconductor materials, through to devices, circuits, systems and applications: the first book on the subject to do so
- The first book that brings healthcare sensing to the general VLC community, potentially adding significant value to the research community through ideas generation and awareness of literature
- A reference text for researchers and industrialists to discover immediately any of the key advances in the field from any subdomain, enabling off-the-shelf knowledge generation
Author(s): Paul Anthony Haigh
Series: IOP Series in Emerging Technologies in Optics and Photonics
Publisher: IOP Publishing
Year: 2021
Language: English
Pages: 234
City: Bristol
PRELIMS.pdf
Preface
Author biography
Paul Anthony Haigh
List of acronyms
CH001.pdf
Chapter 1 Introduction
1.1 Introduction to visible light communications
1.1.1 Solutions to the spectrum crunch
1.1.2 Emergence of visible light communications
1.2 State-of-the-art in visible light communications
1.3 Summary
References
CH002.pdf
Chapter 2 Technological enablers
2.1 Introduction
2.2 Principles of light generation and absorption
2.2.1 Radiative recombination of electrons and holes
2.2.2 Light-emitting diodes
2.2.3 Photodetectors
2.2.4 Noise current
2.3 Organic semiconductors
2.3.1 Hybridisation
2.3.2 Linear combination of molecular orbitals
2.3.3 LUMO and HOMO
2.3.4 The bulk heterojunction
2.4 Summary
References
CH003.pdf
Chapter 3 High-speed circuits and channel modelling
3.1 Introduction
3.2 Circuits for high-speed VLC systems
3.2.1 Multiple-resonant equalisation
3.2.2 Artificial transmission line synthesis
3.2.3 Negative impedance conversion
3.2.4 Other solutions
3.3 Channel models
3.4 Summary
References
CH004.pdf
Chapter 4 Applications of signal processing
4.1 Introduction
4.2 Advanced modulation formats
4.2.1 Orthogonal frequency division multiplexing
4.2.2 Fast orthogonal frequency division multiplexing
4.2.3 Carrier-less amplitude and phase modulation
4.2.4 Multi-band carrier-less amplitude and phase modulation
4.2.5 Staggered carrier-less amplitude and phase modulation
4.2.6 Super-Nyquist carrier-less amplitude and phase modulation
4.3 Adaptive equalisers
4.3.1 Least mean squares
4.3.2 Recursive least squares
4.4 Applied machine learning
4.5 Summary
References
CH005.pdf
Chapter 5 Balancing lighting with data communications
5.1 Introduction
5.2 Dimming in visible light communication
5.2.1 Pulse width modulation
5.2.2 Pulse position modulation
5.2.3 Subcarrier index modulation
5.3 Light balancing
5.3.1 Colour shift keying
5.3.2 Coloured pulse amplitude modulation
5.4 Summary
References
CH006.pdf
Chapter 6 Uplink technologies
6.1 Introduction
6.1.1 Visible light uplink
6.1.2 Infrared uplink
6.1.3 Hybrid radio frequency systems
6.2 Summary
References
CH007.pdf
Chapter 7 Localisation and positioning
7.1 Introduction
7.2 Positioning with visible light
7.2.1 Received signal strength
7.2.2 Angle of arrival
7.2.3 Time difference of arrival
7.3 Positioning with data communication
7.4 Summary
References
CH008.pdf
Chapter 8 Internet-of-things and intelligent transport systems
8.1 Introduction
8.2 Internet-of-things
8.2.1 Energy harvesting
8.3 Intelligent transport systems
8.3.1 Distances and mobility
8.3.2 Platooning
8.3.3 Weather
8.4 Summary
References
CH009.pdf
Chapter 9 Oxygen sensing
9.1 Introduction
9.2 Applications
9.2.1 Cancer studies
9.2.2 Cell cultures
9.3 Types of oximetry
9.3.1 Haemoglobin-based oximetry
9.3.2 Phosphorescence quenching
9.3.3 Response and recovery time
9.4 Methods
9.4.1 Intensity
9.4.2 Frequency domain lifetime
9.4.3 Time domain lifetime
9.5 Instrumentation
9.5.1 Single point sensing
9.5.2 Imaging techniques
9.6 Summary
References
CH010.pdf
Chapter 10 Future outlook and conclusions
References
