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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
Citations
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Proceedings ArticleDOI
Data Center Top of Rack Switch to Multiple Spine Switches Optical Wireless Uplinks
Abrar S. Alhazmi,Osama Zwaid Alsulami,Taisir E. H. El-Gorashi,Mohammed T. Alresheedi,Jaafar M. H. Elmirghani +4 more
TL;DR: In this paper, the authors proposed a novel approach to enable data center uplink communication between racks and spine switches, and evaluated the performance of their proposed system when each link operates at a data rate above 2.8 Gb/s.
Journal ArticleDOI
Threshold optimization for modified switching scheme of hybrid FSO/RF system in the presence of strong atmospheric turbulence
TL;DR: An algorithm is proposed to obtain the optimized thresholds, which yield minimum bit error rate (BER) for a given outage probability under a constraint on maximum transmitted power.
Journal ArticleDOI
Novel Design for Li-Fi Healthcare Monitoring System
Ammar Majeed,Ibrahim A. Murdas +1 more
TL;DR: The key idea of the created system is to remove the optical background noise power and to ensure patient's mobility at distance up to 4 m and 2.5 m in Los (line of sight) and diffuser links respectively.
Journal ArticleDOI
Performance of Subcarrier Intensity Modulated FSO Systems over Gamma---Gamma Turbulence Channels with Pointing Errors
TL;DR: A novel, exact closed-form expression is derived for the average symbol error probability of the considered free-space optical communication system using subcarrier intensity modulation (SIM) with general-order rectangular quadrature amplitude modulation (QAM) and operating over Gamma–Gamma turbulence channels subjected to pointing errors.
Proceedings ArticleDOI
A low complexity NOMA scheme in VLC systems using pulse modulations (invited paper)
TL;DR: The soft decision decoding (SDD) scheme is employed to decode the MPPM signal of the user under the better channel condition, which could fundamentally alleviate the adverse impact of EP on symbol error rate (SER) performance and is easier and faster to implement than the traditional SIC decoding scheme.