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Optical Wireless Communications: System and Channel Modelling with MATLAB®

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TLDR
The authors highlight past and current research activities to illustrate optical sources, transmitters, detectors, receivers, and other devices used in optical wireless communications and describe techniques for using theoretical analysis and simulation to mitigate channel impact on system performance.
Abstract
Detailing a systems approach, Optical Wireless Communications: System and Channel Modelling with MATLAB, is a self-contained volume that concisely and comprehensively covers the theory and technology of optical wireless communications systems (OWC) in a way that is suitable for undergraduate and graduate-level students, as well as researchers and professional engineers. Incorporating MATLAB throughout, the authors highlight past and current research activities to illustrate optical sources, transmitters, detectors, receivers, and other devices used in optical wireless communications. They also discuss both indoor and outdoor environments, discussing how different factorsincluding various channel modelsaffect system performance and mitigation techniques. In addition, this book broadly covers crucial aspects of OWC systems: Fundamental principles of OWC Devices and systems Modulation techniques and schemes (including polarization shift keying) Channel models and system performance analysis Emerging visible light communications Terrestrial free space optics communication Use of infrared in indoor OWC One entire chapter explores the emerging field of visible light communications, and others describe techniques for using theoretical analysis and simulation to mitigate channel impact on system performance. Additional topics include wavelet denoising, artificial neural networks, and spatial diversity. Content also covers different challenges encountered in OWC, as well as outlining possible solutions and current research trends. A major attraction of the book is the presentation of MATLAB simulations and codes, which enable readers to execute extensive simulations and better understand OWC in general.

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Proceedings ArticleDOI

Channel Modeling and Performance Characterization of Underwater Visible Light Communications

TL;DR: This paper develops a closed-form path loss expression as a function of transceiver parameters and the water type and utilizes this new expression to determine the maximum achievable link distance for UVLC systems while satisfying a specified bit error rate.
Journal ArticleDOI

Adaptive Channel Coding and Power Control for Practical FSO Communication Systems Under Channel Estimation Error

TL;DR: The effect of channel estimation inaccuracies on the performance of the proposed adaptive schemes is investigated and it is shown that the accuracy of the channel estimator depends on the length of the sequence and, for a sufficiently largelength of the observation window, it achieves performance close to the receiver with known CSI.
Journal ArticleDOI

Optical Power Domain NOMA for Visible Light Communications

TL;DR: The experimental results show that, OPD-NOMA offers improved transmission performance compared to conventional NOMA using the same driver circuit, since it can make a better use of the linear dynamic range of the LED’s power–current response.
Journal ArticleDOI

VLC, OCC, IR and LiFi Reliable Optical Wireless Technologies to be Embedded in Medical Facilities and Medical Devices.

TL;DR: LiFi technology, recently deployed on the market, is mature enough to be integrated in the ERMA system addressed here and both VLC and OCC have promising future, as well.
Journal ArticleDOI

Free-Space Optical Communication: A Diversity-Multiplexing Tradeoff Perspective

TL;DR: The DMT is introduced for MIMO-FSO systems that utilize the intensity modulation and direct detection technique for which the channel gains are real and positive, contrary to MIMo radio-frequency (MIMo-RF) systems where theChannel gains are complex.
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