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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

Clipping-Enhanced Optical OFDM for IM/DD Communication Systems

TL;DR: The proposed clipping enhanced optical OFDM (CEO-OFDM) for IM/DD communication systems to reduce the clipping effects can support a higher throughput than other techniques when the same bit error rate is achieved.
Proceedings ArticleDOI

Impact of Transmitter Positioning Uncertainty on RSS-based Visible Light Positioning Accuracy

TL;DR: Simulation results show that, positioning accuracy can be severely compromised for positioning systems with a small number of Txs, and it is shown that higher lighting uniformity does not necessarily imply improved positioning performance.
Journal ArticleDOI

Performance analysis of interleaved LDPC for optical satellite communications

TL;DR: Simulation results show that the block-interleaving scheme can achieve a 5 dB gain compared to the pure LDPC scheme and an interleaving method in combination with LDPC codes is proposed to overcome the problem of burst error, which frequently occurs in the optical satellite communication systems (OSC).
Proceedings ArticleDOI

Pilot symbol utilization for reducing peak-to-average power ratio in optical OFDM

TL;DR: A technique that can mitigate high PAPR in optical OFDM using pilot symbol in the indoor VLC environment is described and there is indication from the simulation results that not only can the technique reduce high P APR but it also offers good bit error rate (BER) performance.
Proceedings ArticleDOI

Performance of indoor visible light systems using OOK and PPM modulations under multipath channels

TL;DR: In this article, the performance of On-Off Keying (OOK) and Pulse Position Modulation (PPM) modulation schemes in multipath indoor optical wireless links is investigated, and it is shown that PPM is more resilient to Inter-Symbol Interference induced by multipath channels when one array of Light Emitting Diode (LED) transmitters is employed compared with OOK schemes.
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