1st Edition

Optical Wireless Communications System and Channel Modelling with MATLAB®

    576 Pages 268 B/W Illustrations
    by CRC Press

    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 factors—including various channel models—affect 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.

    Introduction: Optical Wireless Communication Systems

    Wireless Access Schemes

    A Brief History of OWC

    OWC/Radio Comparison

    Link Configuration

    OWC Application Areas

    Safety and Regulations

    OWC Challenges

    Optical Sources and Detectors

    Light Sources

    Light-Emitting Diode

    The Laser


    Photodetection Techniques

    Photodetection Noise

    Optical Detection Statistics

    Channel Modelling

    Indoor Optical Wireless Communication Channel

    Artificial Light Interference

    Outdoor Channel

    Modulation Techniques


    Analogue Intensity Modulation

    Digital Baseband Modulation Techniques

    Pulse Position Modulation

    Pulse Interval Modulation

    Dual-Header PIM

    Multi-Level DPIM

    Comparisons of Baseband Modulation Schemes

    Subcarrier Intensity Modulation

    Orthogonal Frequency Division Multiplexing

    Optical Polarization Shift Keying


    System Performance Analysis: Indoor

    Effect of Ambient Light Sources on Indoor OWC Link Performance

    Effect of FLI without Electrical High-Pass Filtering

    Effect of Baseline Wander without FLI

    Effect of FLI with Electrical High-Pass Filtering

    Wavelet Analysis

    Link Performance for Multi-path Propagation

    Mitigation Techniques

    Equalization as a Classification Problem

    Introduction to Artificial Neural Network

    Training Network

    The ANN-Based Adaptive Equalizer

    FSO Link Performance under the Effect of Atmospheric Turbulence

    On–Off Keying

    Pulse Position Modulation

    Subcarrier Intensity Modulation

    Atmospheric Turbulence-Induced Penalty


    Outdoor OWC Links with Diversity Techniques

    Atmospheric Turbulence Mitigation Techniques

    Receiver Diversity in Log-Normal Atmospheric Channels

    Transmitter Diversity in a Log-Normal Atmospheric Channel

    Transmitter–Receiver Diversity in a Log-Normal Atmospheric Channel

    Results and Discussions of SIM-FSO with Spatial Diversity in a Log-Normal Atmospheric Channel

    SIM-FSO with Receiver Diversity in Gamma–Gamma and Negative Exponential Atmospheric Channels

    Terrestrial Free Space Optical Links with Subcarrier Time Diversity

    Aperture Averaging


    Visible Light Communications


    System Description

    System Implementations

    Multiple-Input-Multiple-Output VLC

    Home Access Network



    Professor Zabih Ghassemlooy (CEng, Fellow of IET, senior member of IEEE) received his BSc (Hons.) in electrical and electronics engineering from the Manchester Metropolitan University in 1981, and his MSc and Ph.D in optical communications from the University of Manchester Institute of Science and Technology thereafter in 1984 and 1987, respectively. Currently he is an associate dean for research in the School of Computing, Engineering and Information Sciences, University of Northumbria at Newcastle upon Tyne, UK. He also heads the Northumbria Communications Research Laboratories within the school. His research interests are mainly in the area of optical communications, and published over 415 papers. He is the founder and the chairman of the IEEE, IET International Symposium on Communication Systems, Network and Digital Signal Processing.

    Dr. W. Popoola had his national diploma in electrical engineering from The Federal Polytechnic, Ilaro, Nigeria and later graduated with first class honours degree in electronic and electrical engineering from Obafemi Awolowo University, Nigeria. He later proceeded to Northumbria University at Newcastle upon Tyne, England, UK, for his MSc in optoelectronic and communication systems where he graduated with distinction in 2006. He was awarded his Ph.D. in 2009 at the Northumbria University for his research work in free-space optical communications. He is currently a researcher with the Institute for Digital Communications, University of Edinburgh, UK working on visible light communications.

    Dr. S. Rajbhandari obtained his bachelor degree in electronics and communication engineering from the Institute of Engineering, Pulchowk Campus (Tribhuvan University), Nepal in 2004. In 2006, he received an MSc in optoelectronic and communication systems with distinction and was awarded the P. O. Byrne prize for most innovative project. He then joined the Optical Communications Research Lab (OCRG) at Northumbria University and was awarded a Ph.D degree in 2010. Since 2009, he has been with the OCRG at Northumbria University working as a postdoctoral researcher. He has published more than 70 scholarly articles in the area of optical wireless communications.

    "This book presents a thorough theoretical analysis of optical wireless communication while bridging theory with practice through MATLAB® programming. Using MATLAB will enable the reader to experiment with concepts directly on the computer while reading the book. It will also give the reader the opportunity to develop further concept since the basic code is readily available."
    —Driss Benhaddou, University of Houston, Texas, USA

    "As the field of optical wireless communications continues to spread, researchers, students, and industry practitioners face the need of an up-to-date and comprehensive textbook with sufficient detail. The book by Ghassemlooy et al. fills this critical gap and provides a much-needed resource that covers both indoor and outdoor optical wireless applications. I recommend it highly to anyone interested in the emerging area of optical wireless communications."
    —Murat Uysal, Özyeğin University, Istanbul, Turkey

    "… a valuable book!"
    —Prof. Erich Leiteb, Graz University of Technology, Austria