Download or read book Optical Communication Theory and Techniques written by Enrico Forestieri and published by Springer Science & Business Media. This book was released on 2006-01-26 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the advent of optical communications, a greattechnological effort has been devoted to the exploitation of the huge bandwidth of optical fibers. Sta- ing from a few Mb/s single channel systems, a fast and constant technological development has led to the actual 10 Gb/s per channel dense wavelength - vision multiplexing (DWDM) systems, with dozens of channels on a single fiber. Transmitters and receivers are now ready for 40 Gb/s, whereas hundreds of channels can be simultaneously amplified by optical amplifiers. Nevertheless, despite such a pace in technological progress, optical c- munications are still in a primitive stage if compared, for instance, to radio communications: the widely spread on-off keying (OOK) modulation format is equivalent to the rough amplitude modulation (AM) format, whereas the DWDM technique is nothing more than the optical version of the frequency - vision multiplexing (FDM) technique. Moreover, adaptive equalization, ch- nel coding or maximum likelihood detection are still considered something “exotic” in the optical world. This is mainly due to the favourable char- teristics of the fiber optic channel (large bandwidth, low attenuation, channel stability, ...), which so far allowed us to use very simple transmission and detection techniques.
Download or read book Wireless Optical Communication Systems written by Steve Hranilovic and published by Springer Science & Business Media. This book was released on 2006-01-16 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume addresses the problem of designing efficient signalling and provides a link between the areas of communication theory and modem design for amplitude constrained linear optical intensity channel. It provides practical guidelines for the design of signalling sets for wireless optical intensity channels.
Download or read book Principles and Applications of Free Space Optical Communications written by and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optical Fiber Communications Systems written by Le Nguyen Binh and published by CRC Press. This book was released on 2010-04-19 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carefully structured to provide practical knowledge on fundamental issues, Optical Fiber Communications Systems: Theory and Practice with MATLAB® and Simulink® Models explores advanced modulation and transmission techniques of lightwave communication systems. With coverage ranging from fundamental to modern aspects, the text presents optical communication techniques and applications, employing single mode optical fibers as the transmission medium. With MATLAB and Simulink models that illustrate methods, it supplies a deeper understanding of future development of optical systems and networks. The book begins with an overview of the development of optical fiber communications technology over the last three decades of the 20th century. It describes the optical transmitters for direct and external modulation technique and discusses the detection of optical signals under direct coherent and incoherent reception. The author also covers lumped Er:doped and distributed Roman optical amplifiers with extensive models for the amplification of signals and structuring the amplifiers on the Simulink platform. He outlines a design strategy for optically amplified transmission systems coupled with MATLAB Simulink models, including dispersion and attenuation budget methodology and simulation techniques. The book concludes with coverage of advanced modulation formats for long haul optical fiber transmission systems with accompanied Simulink models. Although many books have been written on this topic over the last two decades, most of them present only the theory and practice of devices and subsystems of the optical fiber communications systems in the fields, but do not illustrate any computer models to represent the true practical aspects of engineering practice. This book fills the need for a text that emphasizes practical computing models that shed light on the behavior and dynamics of the devices.
Download or read book Optical Fiber Communications Systems written by Le Nguyen Binh and published by CRC Press. This book was released on 2011-06-08 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carefully structured to provide practical knowledge on fundamental issues, Optical Fiber Communications Systems: Theory and Practice with MATLAB and Simulink Models explores advanced modulation and transmission techniques of lightwave communication systems. With coverage ranging from fundamental to modern aspects, the text presents optical communic
Download or read book Optical Fiber Communications written by Senior John M. and published by Pearson Education India. This book was released on 2009 with total page 1132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Optical Wireless Communication Systems written by Shlomi Arnon and published by Cambridge University Press. This book was released on 2012-05-24 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combines theory with real-world case studies to give a comprehensive overview of modern optical wireless technology.
Download or read book Advances in Communication Systems written by A. V. Balakrishnan and published by Academic Press. This book was released on 2014-06-28 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Communication Systems: Theory and Applications, Volume 2 focuses on laser transmission, stochastic approximation, optical techniques, adaptive compression, and synchronous satellite and manned space-flight communication systems. The selection first offers information on a study of multiple scattering of optical radiation with applications to laser communication and a recursive method for solving regression problems. Discussions focus on the mathematical model of the optical communication system; numerical characterization of transmission channel; computational aspects of the equation of radiative transfer; and applications to communications problems. The text then examines the optical techniques in communication systems, as well as optics fundamentals and applications to communications. The manuscript takes a look at synchronous satellite communication systems and the theory of adaptive data compression. Topics include system compression ratio, open-loop mean square error, synchronous satellites, anticipated developments in synchronous satellite technology, and closed-loop mean square error. The text also elaborates on manned spaceflight communications systems and the orbiting geophysical observatory communication system. The text is a valuable reference for researchers interested in laser transmission, synchronous satellite and manned space-flight communication systems, and adaptive compression.
Download or read book Communication and Signal Processing Methods for Efficient Optical Link Component Utilization written by Elaine Shin-Yeu Chou and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The exponential growth trend of network traffic during the past few decades continues to be driven by emerging applications. As global traffic demands rise, the share of traffic carried by optical fiber is increasing simultaneously. Therefore, it is imperative that future optical fiber links take full advantage of the resources available to maximize capacity. This work aims to apply communication theory concepts and signal processing techniques to optical communication links to ultimately increase capacity in systems that are subject to component limitations. First, we explore the advantages of adaptive-rate access networks, implemented through adaptive coding and modulation that adjusts the forward error correction code rate and modulation order in response to the channel conditions of each user. Our adaptive coding and modulation scheme can achieve an equalized bit rate of 40 Gb/s with 25G-class components on a network with fiber lengths of 5 to 25 km. Next, we study the fundamental performance of Kramers-Kronig detection, a technique that uses signal processing to retrieve the phase of a signal from its intensity measurement, making comparisons to standard coherent detection and standard direct detection. Finally, we study the benefit of successive interference cancellation in frequency-selective space-division multiplexed ultra-long-haul submarine links with mode-dependent gain caused by optical amplifier limitations. We show that successive interference cancellation, in conjunction with coding across modes, decreases capacity loss resulting from mode-dependent gain by 39% at 15,000 km and increases system reach by 28% compared to minimum-mean-square error detection in a link with moderate mode-dependent gain.
Download or read book Digital Processing written by Le Nguyen Binh and published by CRC Press. This book was released on 2017-07-12 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: With coherent mixing in the optical domain and processing in the digital domain, advanced receiving techniques employing ultra-high speed sampling rates have progressed tremendously over the last few years. These advances have brought coherent reception systems for lightwave-carried information to the next stage, resulting in ultra-high capacity global internetworking. Digital Processing: Optical Transmission and Coherent Receiving Techniques describes modern coherent receiving techniques for optical transmission and aspects of modern digital optical communications in the most basic lines. The book includes simplified descriptions of modulation techniques for such digital transmission systems carried by light waves. It discusses the basic aspects of modern digital optical communications in the most basic lines. In addition, the book covers digital processing techniques and basic algorithms to compensate for impairments and carrier recovery, as well as noise models, analysis, and transmission system performance.
Download or read book Optical Communications written by Jürgen Franz and published by CRC Press. This book was released on 2000 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: The advantages of optical communications are many: ultra-high speed, highly reliable information transmission, and cost-effective modulation and transmission links to name but a few. It is no surprise that optical fiber communications systems are now in extensive use all over the world. Along with software and microelectronics, optical communication represents a key technology of modern telecommunication systems. Optical Communications: Components and Systems provides the basic material required for advanced study in theory and applications of optical fiber and space communication systems. After a review of some fundamental background material, component-based chapters discuss all relevant passive and active optical and optoelectronic components used in point-to-point links and in networks. Systems chapters address the analysis and optimization of both incoherent and coherent systems, introduce fiber optic link design, and discuss physical limits. The authors also provide an overview of applications such as optical networks and optical free-space communications. The advanced interactive multimedia communications of today and the future rely on optical fiber and space communication techniques. Optical Communications: Components and Systems offers engineers and physicists a working reference for the selection and design of optical communication systems and provides engineering students with a valuable text that prepares them for work in this essential and rapidly growing field.
Download or read book Enabling Technologies for High Spectral efficiency Coherent Optical Communication Networks written by Xiang Zhou and published by John Wiley & Sons. This book was released on 2016-04-11 with total page 647 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enabling Technologies for High Spectral-efficiency Coherent Optical Communication Networks Presents the technological advancements that enable high spectral-efficiency and high-capacity fiber-optic communication systems and networks This book examines key technology advances in high spectral-efficiency fiber-optic communication systems and networks, enabled by the use of coherent detection and digital signal processing (DSP). The first of this book’s 16 chapters is a detailed introduction. Chapter 2 reviews the modulation formats, while Chapter 3 focuses on detection and error correction technologies for coherent optical communication systems. Chapters 4 and 5 are devoted to Nyquist-WDM and orthogonal frequency-division multiplexing (OFDM). In chapter 6, polarization and nonlinear impairments in coherent optical communication systems are discussed. The fiber nonlinear effects in a non-dispersion-managed system are covered in chapter 7. Chapter 8 describes linear impairment equalization and Chapter 9 discusses various nonlinear mitigation techniques. Signal synchronization is covered in Chapters 10 and 11. Chapter 12 describes the main constraints put on the DSP algorithms by the hardware structure. Chapter 13 addresses the fundamental concepts and recent progress of photonic integration. Optical performance monitoring and elastic optical network technology are the subjects of Chapters 14 and 15. Finally, Chapter 16 discusses spatial-division multiplexing and MIMO processing technology, a potential solution to solve the capacity limit of single-mode fibers. Contains basic theories and up-to-date technology advancements in each chapter Describes how capacity-approaching coding schemes based on low-density parity check (LDPC) and spatially coupled LDPC codes can be constructed by combining iterative demodulation and decoding Demonstrates that fiber nonlinearities can be accurately described by some analytical models, such as GN-EGN model Presents impairment equalization and mitigation techniques Enabling Technologies for High Spectral-efficiency Coherent Optical Communication Networks is a reference for researchers, engineers, and graduate students.
Download or read book Wireless Optical Communication Systems written by Steve Hranilovic and published by Springer. This book was released on 2008-11-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume addresses the problem of designing efficient signalling and provides a link between the areas of communication theory and modem design for amplitude constrained linear optical intensity channel. It provides practical guidelines for the design of signalling sets for wireless optical intensity channels.
Download or read book Principles of Lightwave Communications written by Göran Einarsson and published by Wiley. This book was released on 1996-06-04 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles of Lightwave Communications Göran Einarsson Royal Institute of Technology, Stockholm, Sweden Advances in optical communications and optoelectronic components have revolutionized telecommunication transmission. Uniquely, this book provides a comprehensive treatment of optical fiber communications using a modern communication theory approach. Presenting mathematical models for the building blocks of optical systems, this authoritative text provides a solid basis for analysis and design of lightwave communications systems. Features include: Introduction to the theory of dispersion in optical fibers including solitons Analysis of Heterodyne reception, including the effect of laser phase noise In-depth coverage of optical amplifiers from a communication theory point of view Optical detection theory with PIN-diodes and avalanche photodetectors with a detailed discussion of optical information theory Comprehensive treatment of direct detection receivers and systems Basics of analog optical systems This book is essential reading for engineers and scientists working in research and development of optical communication systems, particularly optical detection and fiber optics. Postgraduate students of physics and optical communications, with a basic knowledge of optics and optical semiconductor components, will also find this an invaluable reference source.
Download or read book Optical Wireless Communications written by Z. Ghassemlooy and published by CRC Press. This book was released on 2019-04-30 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 2nd Edition of Optical Wireless Communications: System and Channel Modelling with MATLAB® with additional new materials, is a self-contained volume that provides a concise and comprehensive coverage of the theory and technology of optical wireless communication systems (OWC). The delivery method makes the book appropriate for students studying at undergraduate and graduate levels as well as researchers and professional engineers working in the field of OWC. The book gives a detailed description of OWC, focusing mainly on the infrared and visible bands, for indoor and outdoor applications. A major attraction of the book is the inclusion of Matlab codes and simulations results as well as experimental test-beds for free space optics and visible light communication systems. This valuable resource will aid the readers in understanding the concept, carrying out extensive analysis, simulations, implementation and evaluation of OWC links. This 2nd edition is structured into nine compact chapters that cover the main aspects of OWC systems: History, current state of the art and challenges Fundamental principles Optical source and detector and noise sources Modulation, equalization, diversity techniques Channel models and system performance analysis Visible light communications Terrestrial free space optics communications Relay-based free space optics communications Matlab codes. A number of Matlab based simulation codes are included in this 2nd edition to assist the readers in mastering the subject and most importantly to encourage them to write their own simulation codes and enhance their knowledge.
Download or read book Optical Wireless Communications written by Z. Ghassemlooy and published by CRC Press. This book was released on 2017-07-12 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Optical Communication Theory written by Robert O. Harger and published by Academic Press. This book was released on 1977-01-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
