Download or read book Design and Analysis of Digital Direct detection Fiber optic Communication Systems Using Volterra Series Approach written by Kumar V. Peddanarappagari and published by . This book was released on 1998 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance Analysis and Design of WDM Based Optical Communication Systems Using a Volterra Series Method written by Qun Zhang and published by . This book was released on 2001 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fiber optic Communications written by Gerard Lachs and published by McGraw-Hill Professional Publishing. This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first comprehensive applied book in years on this rapidly-changing area of telecommunications, here is the only resource capable of bringing you fully up to speed on the latest developments in fiber optic communication systems (FOCS). Designed to help you master the mathematics and statistics needed to create high-performance FOCS, Fiber Optic Communications offers you current, in-depth coverage of: optical amplification and the operational characteristics of optical amplifiers; several types of optical detectors - including a uniquely rigorous treatment of quantum noise, receiver noise, and noise in optical amplifiers; wave-division multiplexing - which greatly increases the data rate capability of optical fibers; optical heterodyne detection (OHD) systems - including system performance and proven methods for dealing with phase noise; pros and cons of OHD receivers versus direct detection receivers - one of the hottest debates in fiber optics; and design and performance of a proposed OHD system that features much greater detector sensitivity than present systems.

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2000 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phase Modulated Optical Communication Systems written by Keang-Po Ho and published by Springer Science & Business Media. This book was released on 2005-12-06 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fiber-optic communication systems have revolutionized our telecommunication infrastructures – currently, almost all telephone land-line, cellular, and internet communications must travel via some form of optical fibers. In these transmission systems, neither the phase nor frequency of the optical signal carries information – only the intensity of the signal is used. To transmit more information in a single optical carrier, the phase of the optical carrier must be explored. As a result, there is renewed interest in phase-modulated optical communications, mainly in direct-detection DPSK signals for long-haul optical communication systems. When optical amplifiers are used to maintain certain signal level among the fiber link, the system is limited by amplifier noises and fiber nonlinearities. Phase-Modulated Optical Communication Systems surveys this newly popular area, covering the following topics: - The transmitter and receiver for phase-modulated coherent lightwave systems - Method for performance analysis of phase-modulated optical signals - Direct-detection DPSK signal with fiber nonlinearities, degraded by nonlinear phase noise and intrachannel effects - Wavelength-division-multiplexed direct-detection DPSK signals - Multi-level phase-modulated optical signals, such as the four-phase DQPSK signal. Graduate students, professional engineers, and researchers will all benefit from this updated treatment of an important topic in the optical communications field.

Download or read book Digital Signal Processing For High speed Optical Communication written by Jianjun Yu and published by World Scientific Publishing Company. This book was released on 2018-03-09 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is an increasing tendency to integrate optical communication with wireless communication to satisfy continuously emerging (new) data communication demands. Thus, optical-wireless-integrated access networks and transmission systems, as well as LED-based visible light communication are attracting ever increasing research interest. Digital signal processing (DSP) is one new technology for optical transmission. As such this book is designed to pave the way to the better understanding of the deployment of DSP in optical fiber communication systems.Digital Signal Processing for High-Speed Optical Communication covers a wide area of DSP topics in optical communications, and describes state-of-the-art digital signal processing techniques for high-speed optical communication. In this book, numerous advanced digital signal processing techniques aiming at the promotion of the capacity increase and performance improvement of optical or optical-wireless communication systems and networks are presented and explained. Coverage includes new technologies, optical filter with MLSE, and new pre-coding and pre-equalization applicable to single-carrier and multi-carrier, direct-detection and coherent-detection optical commutation systems and networks.

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 2016-04-29 with total page 719 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 Digital Signal Processing In High Speed Optical Fiber Communication Principle and Application written by Jianjun Yu and published by Springer Nature. This book was released on 2020-07-06 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the principles and applications of optical fiber communication based on digital signal processing (DSP) for both single and multi-carrier modulation signals. In the context of single carrier modulation, it describes DSP for linear and nonlinear optical fiber communication systems, discussing all-optical Nyquist modulation signal generation and processing, and how to use probabilistic and geometrical shaping to improve the transmission performance. For multi-carrier modulation, it examines DSP-based OFDM signal generation and detection and presents 4D and high-order modulation formats. Lastly, it demonstrates how to use artificial intelligence in optical fiber communication. As such it is a useful resource for students, researches and engineers in the field of optical fiber communication.

Download or read book Advanced Digital Optical Communications written by Le Nguyen Binh and published by CRC Press. This book was released on 2017-11-22 with total page 1341 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition of Digital Optical Communications provides a comprehensive treatment of the modern aspects of coherent homodyne and self-coherent reception techniques using algorithms incorporated in digital signal processing (DSP) systems and DSP-based transmitters to overcome several linear and nonlinear transmission impairments and frequency mismatching between the local oscillator and the carrier, as well as clock recovery and cycle slips. These modern transmission systems have emerged as the core technology for Tera-bits per second (bps) and Peta-bps optical Internet for the near future. Featuring extensive updates to all existing chapters, Advanced Digital Optical Communications, Second Edition: Contains new chapters on optical fiber structures and propagation, optical coherent receivers, DSP equalizer algorithms, and high-order spectral DSP receivers Examines theoretical foundations, practical case studies, and MATLAB® and Simulink® models for simulation transmissions Includes new end-of-chapter practice problems and useful appendices to supplement technical information Downloadable content available with qualifying course adoption Advanced Digital Optical Communications, Second Edition supplies a fundamental understanding of digital communication applications in optical communication technologies, emphasizing operation principles versus heavy mathematical analysis. It is an ideal text for aspiring engineers and a valuable professional reference for those involved in optics, telecommunications, electronics, photonics, and digital signal processing.

Download or read book Coherent Optical Communications Systems written by Silvello Betti and published by Wiley-Interscience. This book was released on 1995-02-06 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: This valuable professional resource offers a timely, in-depth look at the many new and innovative technologies and systems configurations available to telecommunications engineers who design optical communications networks. In addition to providing a broad ranging review of state-of-the-art technologies and systems, it arms designers with comprehensive analytical tools with which to comparatively assess available components and systems configurations for performance, reliability, and practicality.

Download or read book The Analysis of Optical Direct Detection Communication Systems with Point Process Observations written by David Paul Brady and published by . This book was released on 1990 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design and Analysis of a Double Carrier Modulation differential Detection Technique for Optical Fiber Communications written by Naseer Abbas Matrood and published by . This book was released on 2003 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fiber optic long haul transmissions have been globally deployed at a staggering rate. All of the installed networks are using Intensity Modulation/Direct Detection (IM/DD). Although the IM/DD systems are proven and used widely, these networks are still subjected to many problems. The main problems associated with long haul transmission are; high dispersion and losses incurred by the fiber, and the inability of the receiver circuit to regenerate the transmitted bits. This is because of low signal power and inter-symbol interference, in addition to the masking noises. The recovery technique in the conventional receivers based on the IM/DD scheme uses an injected voltage level as a threshold into a decision circuit, which decides whether the incoming bit is a 0 or a 1. This scheme has two inherent problems; the instability of the injected threshold voltage, and the complexity of a dynamic threshold processing. As the threshold voltage has its own noise and fluctuation, it adds to the deterioration of the signal, thus limits the systems performance. Meanwhile, due to the random nature of the incoming bits, coupled with the masking noises and jitters, the threshold voltage level cannot be set at a fixed value, and therefore a dynamic voltage threshold adjustment is required. The demand of high data rate and long transmission distance impose much difficulty, therefore new approaches and techniques have to be applied to improve the system and solve these problems. This led to the development of new techniques for the system performance improvement. This thesis introduces a new transmission technique to improve the optical communication system performances. The new technique namely Double Carrier Modulation / Differential Detection (DCM/Diff.D) is presented. The system uses two carri,ers to send the data. One carrier carries the data, while the other carries the data inversion. A differential detection scheme based on the amplitude subtraction is used at the receiver end. The original signal Al and its inversion A2 are detected by two photo detectors and produce two voltage signals V I and V2. The voltage signal that is produced by the inversion data signal is subtracted from that of the original data signal. Note that no external DC voltage supply is required to be the reference threshold voltage as in conventional systems. V2 itself automatically serves as the threshold whose value is always reversal to that of the data, V I (between mark and space levels). Thus the first problem associated with threshold fluctuation and noise is minimized. At the same time, the automatic decision making is provided because both VI and V2 themselves change together dynamically depending on the received optical power levels at receivers 1 and 2 respectively. Therefore there is no need for complicated automatic threshold control schemes such as the eye-pattern scanning method. This suggests doubling the eye magnitude of the conventional system. Therefore, the new system suggests doubling the conventional distance. The new technique is presented by two models; one-fiber model and two-fiber model. A bit error rate (BER) of as good as 10'13 is achieved over 150 km distance for 2.5 Gbps data rate with OdBm transmit power, while conventional systems perform good only for 70 km distance for the same system parameters. The study carried out through a computer simulation. The relationship in design parameters namely; distance, bit rate, bit format, filters bandwidth, photodiode type, and wavelength spacing, are well studied in view of their effects on the performance parameters namely; BER and eye-opening. It is shown here that DCM/Diff.D improves the system performance significantly.

Download or read book American Doctoral Dissertations written by and published by . This book was released on 2001 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simulation of Nonlinear Optic fibre Communication Systems Using Volterra Series Transfer Function Techniques written by Ken Kai-fu Chang and published by . This book was released on 2002 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of Direct detection Optical Communication Systems with Multi pulse Pulse Position Modulation written by Ramaiah Velidi and published by . This book was released on 1995 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fiber Optic Communication Systems written by Govind P. Agrawal and published by Wiley-Interscience. This book was released on 2002-06-11 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: CD-ROM contains: a software package for designing fiber-optic communication systems called "OptiSystem Lite" and a set of problems for each chapter.

Download or read book Design and Simulation of 2 55 symbol for Micrometer Mid infrared Digital Fiber Optical Communication Systems Using Direct and Coherent Detection Schemes written by Kriengkrai Tintasuwan and published by . This book was released on 1989 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: