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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.read more
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Proceedings ArticleDOI
Human body impact on mobile visible light communication link
C. Le Bas,Stephanie Sahuguede,Anne Julien-Vergonjanne,Abdeslam Behlouli,Pierre Combeau,Lilian Aveneau +5 more
TL;DR: Investigation of VLC performance considering two body models with different reflectivity values and a mobile receiver with random orientations to account body movements shows that for low data rates, a 2D body model with perpendicular receiver orientation allows suitable performance estimation.
Journal ArticleDOI
Investigation and Analysis of Data Rate for Free Space Optical Communications System Under Dust Conditions
TL;DR: In this study, the performance of free-space optics (FSO) communication link under dust conditions was analysed and the system has a high BER at a high data rate and a high Q-factor at a low data rate.
Journal ArticleDOI
A Novel Blind Spectrum Sensing Technique for Multi-User Ultraviolet Communications in Atmospheric Turbulence Channel
Sudhanshu Arya,Yeon Ho Chung +1 more
TL;DR: A novel blind spectrum sensing scheme for an unknown ultraviolet signal over strong atmospheric turbulence channel, based on the estimated signal-to-noise ratio (SNR) and the noise power and equipped with spatial diversity scheme in the form of switch-and-stay combining is proposed.
Journal ArticleDOI
Performance evaluation of optical attocells configuration in an indoor visible light communication
TL;DR: A new LEDs distribution of five optical attocells configuration model is proposed in order to optimize the received power distribution and SNR at the center of the room for indoor VLC system and saved 24.9% of the transmitted power.
Journal ArticleDOI
Multi-Hop Relay Based Free Space Optical Communication Link for Delivering Medical Services in Remote Areas
TL;DR: This paper proposes 120 Gbps DP-16 QAM modulated multi-hop serial FSO link with coherent reception for delivering medical consultation services in remote and isolated locations and reveals that as the number of relay nodes increases, the error performance of the link for different atmospheric conditions approaches a state of convergence.