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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
Communication coverage improvement of indoor SDM-VLC system using NHS-OFDM with a modified imaging receiver
Chen Chen,Wen-De Zhong,Dehao Wu +2 more
TL;DR: Analytical and simulation results show that the communication coverage of an indoor 2 × 2 SDM-VLC system can be substantially improved by using NHS-OFDM with a modified ImR, compared with the system using Hermitian symmetry based OFDM (HS- OFDM) with a conventional ImR.
Proceedings ArticleDOI
Enhanced performance of FSO link using OFDM and comparison with traditional TDM-FSO link
Pravindra Kumar,Anand Srivastava +1 more
TL;DR: This paper shows that at BER of 10-3, there is 14.7 dB gain in signal-to-noise ratio (SNR) and 7.2 dB improvement in receiver sensitivity with OFDM-FSO link as compared to traditional TDM-FSo link.
Journal ArticleDOI
An innovative approach for performance enhancement of 320 Gbps free space optical communication system over turbulent channel
TL;DR: The use of multi-hop relay techniques to transmit wavelength division multiplexed (WDM) signal over the FSO channel allows substantial performance enhancement by alleviating channel losses while, WDM provides cost effective solution in improving the transmission capacity.
Proceedings ArticleDOI
Investigation of data encryption impact on broadcasting visible light communications
Farag Mousa,Andrew Burton,Hoa Le Minh,Zabih Ghassemlooy,Trung Q. Duong,Anthony C. Boucouvalas,Joaquin Perez,Xuewu Dai +7 more
TL;DR: The paper shows that the bit error rate (BER) performance for the un-secured and secured VLC systems (8 and 12-bit) for data rates of 2 and 12 Mbps and shows that there is 2-4 dB power penalties with the secured V LCs.
Proceedings ArticleDOI
Multi-wavelength visible light communication system design
TL;DR: This paper investigates the relationships between the colors comprising the lighting source for a range of lighting states, the spectral separation of communication channels, the relative intensities required to realize Lighting states, how modulation can be most effectively mapped to the available color channels, and the design of an optical filtering approach to maximize signal to noise ratio while minimizing crosstalk at the receiver.