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Download or read book DSP-enabled Reconfigurable Optical Network Devices and Architectures for Cloud Access Networks written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Xiao Duan
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (16 download)
Download or read book DSP-enabled Reconfigurable Optical Network Devices and Architectures for Cloud Access Networks written by Xiao Duan and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Darli Augusto de Arruda Mello
Publisher : Springer Nature
ISBN 13 : 3030665410
Total Pages : 238 pages
Book Rating : 4.0/5 (36 download)
Download or read book Digital Coherent Optical Systems written by Darli Augusto de Arruda Mello and published by Springer Nature. This book was released on 2021-03-08 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook details the architecture of a digital coherent optical system and describes its main digital signal processing (DSP) algorithms. The authors first show how the combination of advanced modulation techniques, DSP and coherent detection has led to significant gains in capacity and ease of operation. The authors follow the path of the information from its generation in the transmitter, to propagation through the fiber and processing by the DSP algorithms in the receiver. The work summarizes academic results and presents them in a didactic way to students and practitioners working on the area of optical communications. A full suite of classroom materials is included for easy integration into a curriculum, containing theoretic and simulation problems, and off-the-shelf Matlab/Octave functions.
Author : She-Hwa Yen
Publisher : Stanford University
ISBN 13 :
Total Pages : 145 pages
Book Rating : 4.F/5 ( download)
Download or read book Reconfigurable Technology for Future Optical Access Networks written by She-Hwa Yen and published by Stanford University. This book was released on 2011 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fiber-based access is recognized as the most promising technology for solving broadband bandwidth bottlenecks. Time division multiplexing passive optical networks (TDM-PONs) that are passive and non-reconfigurable are currently the most widely deployed type of fiber access networks. However, due to their passive nature, TDM-PONs faces several limitations such as inflexible service area coverage, lack of intelligence for control, and inability to counteract security attacks. In order to address the current limitations of optical access networks, we propose reconfigurable technologies for next generation PONs. Two novel reconfigurable technologies are proposed, analyzed, and experimentally evaluated. The first solution is a reconfigurable power-and wavelength- assignment technology based on a novel non-volatile, reconfiguration node. The proposed remote node can reconfigure the network to adapt it to varying degrees of deployment conditions and/or network attacks. Moreover, the proposed remote node incorporates a novel quasi-passive device that does not consume energy once it is reconfigured into a new latching state. Therefore, the proposed remote node has very low energy consumption and does not require local power supply to preserve the passive character of the distribution network. In particular, two novel quasi-passive optical power splitter technologies based on Micro-Electro-Mechanical Systems (MEMS) and transition metal oxide have been designed for the reconfigurable device. A simulation study shows the proposed reconfigurable device would outperform traditional passive splitter in terms of maximum number of supportable users under realistic deployment conditions. The second solution addresses the issue of reconfigurable network consolidation and infrastructure simplification. Current TDM-PONs suffers from limited reach and split-ratio. To enhance the performance in terms of service range and quality of service, reconfigurable network consolidation is a promising solution. It can also simplify the network and reduce cost. We propose the following novel reconfigurable technologies for consolidation and simplification of next generation access networks: (1) Passive reach-extension technology for the drop section of optical access networks; (2) Sleep mode ONUs for energy saving; (3) Centrally managed optical signature that can monitor and protect the upstream link; and (4) Multi-rate burst mode receivers. These reconfigurable technologies can bring the intelligence into optical access networks and improve the efficiency and flexibility for next generation optical access networks.
Author : Zhensheng Jia
Publisher : CRC Press
ISBN 13 : 1000736962
Total Pages : 128 pages
Book Rating : 4.0/5 (7 download)
Download or read book Coherent Optics for Access Networks written by Zhensheng Jia and published by CRC Press. This book was released on 2019-10-28 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will highlight the motivation for coherent optics in access and introduce digital coherent optical system in detail, including advanced modulation formats, architecture of modulation and detection, and DSP flow for both transmitter and receiver. This book will also demonstrate potential approaches to re-design and re-engineer the digital coherent concept from long-haul and metro solutions to the access network, leveraging reduction in complexity and cost as well as the benefits of capacity increases and operational improvements. This book will illustrate the details on optimization of the digital, optical, and electrical complexity and standardization and interoperability.
Author : Saeed Ghasemi
Publisher :
ISBN 13 :
Total Pages : 135 pages
Book Rating : 4.:/5 (115 download)
Download or read book Real-time Digital Signal Processing for New Wavelength-to-the-user Optical Access Networks written by Saeed Ghasemi and published by . This book was released on 2020 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nowadays, optical access networks provide high capacity to end users with growing availability of multimedia contents that can be streamed to fixed or mobile devices. In this regard, one of the most flexible and low-cost approaches is Passive Optical Network (PON) that is used in Fiber-to-the-Home (FTTH). Due to the growing of the bandwidth demands, Wavelength Division Multiplexing (WDM), and later on ultra-dense WDM (udWDM) PON, with a narrow channel spacing, to increase the number of users through a single fiber, has been deployed.The udWDM-PON with coherent technology is an attractive solution for the next generation optical access networks with advanced digital signal processing (DSP). Thanks to the higher sensitivity and improved channel selectivity in coherent detection with efficient DSP, optical networks support larger number of users in longer distances.Since the cost is the main concern in the optical access networks, this thesis presents DSP architectures in coherent receiver (Rx), based on low-cost direct phase modulated commercial DFB lasers. The proposals are completely in agreement with consept of wavelength-to-the-user, where each client in optical network is dedicated to an individual wavelength. Next, in a 6.25 GHz spaced udWDM grid with the optimized DSP techniques and phase-shift-keying (PSK) modulation format, the high sensitivity is achieved in real-time field-programmable-gate-array (FPGA) implementations. Moreover, this thesis reduces hardware complexity of optical carrier recovery (CR) with two various strategies. First, based on differential mth-power frequency estimator (FE) by using look-up-tables (LUTs) and second, LUT-free CR architecture, with optimizing the power consumption and hardware resources, as well as improving the channel selectivity in terms of speed and robustness.Furthermore, by designing very simple but efficient clock recovery, a symbol-rate DSP architecture, which process data using only one sample per symbol (1-sps), for polarization diversity (POD) structure, becomes possible. It makes the DSP independent from state-of-polarization (SOP), even in the case of low-cost optical front-end and low-speed analog-to-digital converters (ADCs), keeps the performance high as well as sensitivity in real-time implementations on FPGA.
Author : Shuang Yin
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (95 download)
Download or read book UltraFlow Dual-mode Access Network written by Shuang Yin and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical Flow Switching (OFS) network has been proposed as a complement to the existing Electronic Packet Switching (EPS) based network for its high efficiency in transmitting large files. UltraFlow access network enables OFS in the access network domain, and provides dual-mode services to the end users, i.e., conventional IP and novel Flow. The UltraFlow dual-mode network architecture is a promising solution to the problem of ever-increasing growth of Internet traffic and the newly emerging network applications. The UltraFlow project involves the collaboration of three universities: Stanford University, Massachusetts Institute of Technology (MIT), and University of Texas at Dallas. The MIT group focuses on the design and analysis of OFS in the core and metro network, while the focus of UT Dallas is on designing and analyzing the UltraFlow control plane. At Stanford University, we focus on designing and experimentally demonstrating the UltraFlow dual-mode access network. This dissertation proposes and discusses the concept, architecture, design, implementation and potential applications of the UltraFlow dual-mode access network. The rest of this dissertation is organized as follows. First, this dissertation introduces the concept the UltraFlow dual-mode access network and shows that this architecture is crucial to achieve high throughput transmission considering various Internet traffic patterns. Also presented is the physical layer implementation of UltraFlow dual-mode access network, which coexists with the legacy Passive Optical Networks (PONs). The transport layer design and software defined control plane will also be briefly described. This dissertation next discusses a novel Intra-PON Flow communication architecture, which enables transparent lightpaths among users located in the same access network. Intra-PON channels can support advanced network applications, e.g., video/file server backup, and Coordinated Multipoint (CoMP) transmission in the 5G mobile network era. The proposed architecture adopts a Quasi-PAssive Reconfigurable (QPAR) node, proposed and developed by our group previously, in the UltraFlow access network testbed, which enables dynamic wavelength allocation and improves the UltraFlow dual-mode access network performance. Experimental results then appear on remotely pumped Erbium Doped Fiber Amplifier (EDFA) and distantly powered QPAR node, which can maintain the passive nature of the legacy PONs and achieve high split ratio. This work also investigates and assesses the network performance advantages of Intra-PON Flow transmission via extensive network simulations. Finally, the dissertation reports the line rate evolution paths, beyond state-of-the-art 10 Gbps per wavelength transmission, for the next generation optical access network. This report shows the feasibility of implementing low-cost 25 and 40 Gbps per wavelength transmission in PONs. Advance modulation formats, i.e., Electrical Duobinary (EDB) and 4-level Pulse Amplitude Modulation (PAM-4), optical amplification, and Digital Signal Processing (DSP) are considered as key technologies to support the data rate increase and maintain relatively low system cost with 10 Gbps grade optics. This work includes the experimental results on system power budget, split ratio, and reach for both 25 and 40 Gbps per wavelength transmission with different system designs, and suggests an optimal set of system specifications for both 25 and 40 Gbps transmission.
Author : Philipp Claudius Schindler
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (922 download)
Download or read book Next-Generation Optical Access Networks Architectures, Signal Processing and Devices written by Philipp Claudius Schindler and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Biswanath Mukherjee
Publisher : Springer Nature
ISBN 13 : 3030162508
Total Pages : 1169 pages
Book Rating : 4.0/5 (31 download)
Download or read book Springer Handbook of Optical Networks written by Biswanath Mukherjee and published by Springer Nature. This book was released on 2020-10-15 with total page 1169 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook is an authoritative, comprehensive reference on optical networks, the backbone of today’s communication and information society. The book reviews the many underlying technologies that enable the global optical communications infrastructure, but also explains current research trends targeted towards continued capacity scaling and enhanced networking flexibility in support of an unabated traffic growth fueled by ever-emerging new applications. The book is divided into four parts: Optical Subsystems for Transmission and Switching, Core Networks, Datacenter and Super-Computer Networking, and Optical Access and Wireless Networks. Each chapter is written by world-renown experts that represent academia, industry, and international government and regulatory agencies. Every chapter provides a complete picture of its field, from entry-level information to a snapshot of the respective state-of-the-art technologies to emerging research trends, providing something useful for the novice who wants to get familiar with the field to the expert who wants to get a concise view of future trends.
Author : Tarek S. El-Bawab
Publisher : Springer Science & Business Media
ISBN 13 : 0387291598
Total Pages : 458 pages
Book Rating : 4.3/5 (872 download)
Download or read book Optical Switching written by Tarek S. El-Bawab and published by Springer Science & Business Media. This book was released on 2008-02-11 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applications of optical switching in network elements and communication networks are discussed in considerable depth. Optical circuits, packet, and burst switching are all included. Composed of distinct self-contained chapters with minimum overlaps and independent references. Provides up-to-date comprehensive coverage of optical switching, technologies, devices, systems and networks. Discusses applications of optical switching in network elements and communications networks.
Author : Jane M. Simmons
Publisher : Springer
ISBN 13 : 3319052276
Total Pages : 529 pages
Book Rating : 4.3/5 (19 download)
Download or read book Optical Network Design and Planning written by Jane M. Simmons and published by Springer. This book was released on 2014-05-06 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book takes a pragmatic approach to deploying state-of-the-art optical networking equipment in metro-core and backbone networks. The book is oriented towards practical implementation of optical network design. Algorithms and methodologies related to routing, regeneration, wavelength assignment, sub rate-traffic grooming and protection are presented, with an emphasis on optical-bypass-enabled (or all-optical) networks. The author has emphasized the economics of optical networking, with a full chapter of economic studies that offer guidelines as to when and how optical-bypass technology should be deployed. This new edition contains: new chapter on dynamic optical networking and a new chapter on flexible/elastic optical networks. Expanded coverage of new physical-layer technology (e.g., coherent detection) and its impact on network design and enhanced coverage of ROADM architectures and properties, including colorless, directionless, contentionless and gridless. Covers ‘hot’ topics, such as Software Defined Networking and energy efficiency, algorithmic advancements and techniques, especially in the area of impairment-aware routing and wavelength assignment. Provides more illustrative examples of concepts are provided, using three reference networks (the topology files for the networks are provided on a web site, for further studies by the reader). Also exercises have been added at the end of the chapters to enhance the book’s utility as a course textbook.
Author : John R. Vacca
Publisher : John Wiley & Sons
ISBN 13 : 0470075058
Total Pages : 504 pages
Book Rating : 4.4/5 (7 download)
Download or read book Optical Networking Best Practices Handbook written by John R. Vacca and published by John Wiley & Sons. This book was released on 2006-11-28 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical Networking Best Practices Handbook presents optical networking in a very comprehensive way for nonengineers needing to understand the fundamentals of fiber, high-capacity, high-speed equipment and networks, and upcoming carrier services. The book provides a practical understanding of fiber optics as a physical medium, sorting out single-mode versus multi-mode and the crucial concept of Dense Wave-Division Multiplexing.
Author : Fa-Long Luo
Publisher : John Wiley & Sons
ISBN 13 : 1119116465
Total Pages : 611 pages
Book Rating : 4.1/5 (191 download)
Download or read book Signal Processing for 5G written by Fa-Long Luo and published by John Wiley & Sons. This book was released on 2016-10-17 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive and invaluable guide to 5G technology, implementation and practice in one single volume. For all things 5G, this book is a must-read. Signal processing techniques have played the most important role in wireless communications since the second generation of cellular systems. It is anticipated that new techniques employed in 5G wireless networks will not only improve peak service rates significantly, but also enhance capacity, coverage, reliability , low-latency, efficiency, flexibility, compatibility and convergence to meet the increasing demands imposed by applications such as big data, cloud service, machine-to-machine (M2M) and mission-critical communications. This book is a comprehensive and detailed guide to all signal processing techniques employed in 5G wireless networks. Uniquely organized into four categories, New Modulation and Coding, New Spatial Processing, New Spectrum Opportunities and New System-level Enabling Technologies, it covers everything from network architecture, physical-layer (down-link and up-link), protocols and air interface, to cell acquisition, scheduling and rate adaption, access procedures and relaying to spectrum allocations. All technology aspects and major roadmaps of global 5G standard development and deployments are included in the book. Key Features: Offers step-by-step guidance on bringing 5G technology into practice, by applying algorithms and design methodology to real-time circuit implementation, taking into account rapidly growing applications that have multi-standards and multi-systems. Addresses spatial signal processing for 5G, in particular massive multiple-input multiple-output (massive-MIMO), FD-MIMO and 3D-MIMO along with orbital angular momentum multiplexing, 3D beamforming and diversity. Provides detailed algorithms and implementations, and compares all multicarrier modulation and multiple access schemes that offer superior data transmission performance including FBMC, GFDM, F-OFDM, UFMC, SEFDM, FTN, MUSA, SCMA and NOMA. Demonstrates the translation of signal processing theories into practical solutions for new spectrum opportunities in terms of millimeter wave, full-duplex transmission and license assisted access. Presents well-designed implementation examples, from individual function block to system level for effective and accurate learning. Covers signal processing aspects of emerging system and network architectures, including ultra-dense networks (UDN), software-defined networks (SDN), device-to-device (D2D) communications and cloud radio access network (C-RAN).
Author : Ken-ichi Kitayama
Publisher : Cambridge University Press
ISBN 13 : 1107026164
Total Pages : 361 pages
Book Rating : 4.1/5 (7 download)
Download or read book Optical Code Division Multiple Access written by Ken-ichi Kitayama and published by Cambridge University Press. This book was released on 2014-04-10 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: A self-contained guide to OCDMA for Next-Generation FTTH systems, from the fundamentals to cutting-edge research and practical perspectives.
Author : Paul R. Prucnal
Publisher : CRC Press
ISBN 13 : 1498725244
Total Pages : 412 pages
Book Rating : 4.4/5 (987 download)
Download or read book Neuromorphic Photonics written by Paul R. Prucnal and published by CRC Press. This book was released on 2017-05-08 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book sets out to build bridges between the domains of photonic device physics and neural networks, providing a comprehensive overview of the emerging field of "neuromorphic photonics." It includes a thorough discussion of evolution of neuromorphic photonics from the advent of fiber-optic neurons to today’s state-of-the-art integrated laser neurons, which are a current focus of international research. Neuromorphic Photonics explores candidate interconnection architectures and devices for integrated neuromorphic networks, along with key functionality such as learning. It is written at a level accessible to graduate students, while also intending to serve as a comprehensive reference for experts in the field.
Author : Víctor López
Publisher : Springer
ISBN 13 : 3319301748
Total Pages : 301 pages
Book Rating : 4.3/5 (193 download)
Download or read book Elastic Optical Networks written by Víctor López and published by Springer. This book was released on 2016-06-13 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents advances in the field of optical networks - specifically on research and applications in elastic optical networks (EON). The material reflects the authors’ extensive research and industrial activities and includes contributions from preeminent researchers and practitioners in optical networking. The authors discuss the new research and applications that address the issue of increased bandwidth demand due to disruptive, high bandwidth applications, e.g., video and cloud applications. The book also discusses issues with traffic not only increasing but becoming much more dynamic, both in time and direction, and posits immediate, medium, and long-term solutions throughout the text. The book is intended to provide a reference for network architecture and planning, communication systems, and control and management approaches that are expected to steer the evolution of EONs.
Author : Tolga Tekin
Publisher : Woodhead Publishing
ISBN 13 : 008100513X
Total Pages : 431 pages
Book Rating : 4.0/5 (81 download)
Download or read book Optical Interconnects for Data Centers written by Tolga Tekin and published by Woodhead Publishing. This book was released on 2016-11-01 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current data centre networks, based on electronic packet switches, are experiencing an exponential increase in network traffic due to developments such as cloud computing. Optical interconnects have emerged as a promising alternative offering high throughput and reduced power consumption. Optical Interconnects for Data Centers reviews key developments in the use of optical interconnects in data centres and the current state of the art in transforming this technology into a reality. The book discusses developments in optical materials and components (such as single and multi-mode waveguides), circuit boards and ways the technology can be deployed in data centres. Optical Interconnects for Data Centers is a key reference text for electronics designers, optical engineers, communications engineers and R&D managers working in the communications and electronics industries as well as postgraduate researchers. Summarizes the state-of-the-art in this emerging field Presents a comprehensive review of all the key aspects of deploying optical interconnects in data centers, from materials and components, to circuit boards and methods for integration Contains contributions that are drawn from leading international experts on the topic
