Elastic Optical Networks
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Elastic Optical Networks
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Author : Bijoy Chatterjee
language : en
Publisher: CRC Press
Release Date : 2020-05-12
Elastic Optical Networks written by Bijoy Chatterjee and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-05-12 with Science categories.
The rapid growth in communications and internet has changed our way of life, and our requirement for communication bandwidth. Optical networks can enable us to meet the continued demands for this bandwidth, although conventional optical networks struggle in achieving this, due to the limitation of the electrical bandwidth barrier. Flexgrid technology is a promising solution for future high-speed network design. To promote an efficient and scalable implementation of elastic optical technology in the telecommunications infrastructure, many challenging issues related to routing and spectrum allocation (RSA), resource utilization, fault management and quality of service provisioning must be addressed. This book reviews the development of elastic optical networks (EONs), and addresses RSA problems with spectrum fragment issues, which degrade the quality of service provisioning. The book starts with a brief introduction to optical fiber transmission system, and then provides an overview of the wavelength division multiplexing (WDM), and WDM optical networks. It discusses the limitations of conventional WDM optical networks, and discusses how EONs overcome these limitations. It presents the architecture of the EONs and its operation principle. To complete the discussion of network architecture, this book focuses on the different node architectures, and compares their performance in terms of scalability and flexibility. It reviews and classifies different RSA approaches, including their pros and cons. It focuses on different aspects related to RSA. The spectrum fragmentation is a serious issue in EONs, which needs to be managed. The book explains the fragmentation problem in EONs, discusses, and analyzes the major conventional spectrum allocation policies in terms of the fragmentation effect in a network. The taxonomies of the fragmentation management approaches are presented along with different node architectures. State-of-the-art fragmentation management approaches are looked at. A useful feature of this book is that it provides mathematical modeling and analyzes theoretical computational complexity for different problems in elastic optical networks. Finally, this book addresses the research challenges and open issues in EONs and provides future directions for future research.
Elastic Optical Networks
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Author : Víctor López
language : en
Publisher: Springer
Release Date : 2016-06-13
Elastic Optical Networks written by Víctor López and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-06-13 with Technology & Engineering categories.
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.
Provisioning Recovery And In Operation Planning In Elastic Optical Networks
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Author : Luis Velasco
language : en
Publisher: John Wiley & Sons
Release Date : 2017-10-09
Provisioning Recovery And In Operation Planning In Elastic Optical Networks written by Luis Velasco and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-10-09 with Science categories.
Explains the importance of Elastic Optical Networks (EONs) and how they can be implemented by the world’s carriers This book discusses Elastic Optical Networks (EONs) from an operational perspective. It presents algorithms that are suitable for real-time operation and includes experimental results to further demonstrate the feasibility of the approaches discussed. It covers practical issues such as provisioning, protection, and defragmentation. It also presents provisioning and recovery in single layer elastic optical networks (EON). The authors review algorithms for provisioning point-to-point, anycast, and multicast connections, as well as transfer-based connections for datacenter interconnection. They also include algorithms for recovery connections from failures in the optical layer and in-operation planning algorithms for EONs. Provisioning, Recovery and In-operation Planning in Elastic Optical Network also examines multi-layer scenarios. It covers virtual network topology reconfiguration and multi-layer recovery, and includes provisioning customer virtual networks and the use of data analytics in order to bring cognition to the network. In addition, the book: Presents managing connections dynamically—and the flexibility to adapt the connection bitrate to the traffic needs fit well for new types of services, such as datacenter interconnection and Network Function Virtualization (NFV) Examines the topic in a holistic and comprehensive way, addressing control and management plane issues for provisioning, recovery, and in-operation planning Covers provisioning, recovery, and in-operation planning for EONs at the proposed exhaustive level The rapid expanse of new services has made the use of EONs (a relatively new concept) a necessity. That’s why this book is perfect for students and researchers in the field of technologies for optical networks (specifically EONs), including network architectures and planning, dynamic connection provisioning, on-line network re-optimization, and control and management planes. It is also an important text for engineers and practitioners working for telecom network operators, service providers, and vendors that require knowledge on a rapidly evolving topic.
Optical Wdm Networks
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Author : Devi Chadha
language : en
Publisher: John Wiley & Sons
Release Date : 2019-07-22
Optical Wdm Networks written by Devi Chadha and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-07-22 with Science categories.
Provides a comprehensive and updated account of WDM optical network systems Optical networking has advanced considerably since 2010. A host of new technologies and applications has brought a significant change in optical networks, migrating it towards an all-optical network. This book places great emphasis on the network concepts, technology, and methodologies that will stand the test of time and also help in understanding and developing advanced optical network systems. The first part of Optical WDM Networks: From Static to Elastic Networks provides a qualitative foundation for what follows—presenting an overview of optical networking, the different network architectures, basic concepts, and a high-level view of the different network structures considered in subsequent chapters. It offers a survey of enabling technologies and the hardware devices in the physical layer, followed by a more detailed picture of the network in the remaining chapters. The next sections give an in-depth study of the three basic network structures: the static broadcast networks, wavelength routed networks, and the electronic/optical logically routed networks, covering the characteristics of the optical networks in the access, metropolitan area, and long-haul reach. It discusses the networking picture; network control and management, impairment management and survivability. The last section of the book covers the upcoming technologies of flex-grid and software defined optical networking. Provides concise, updated, and comprehensive coverage of WDM optical networks Features numerous examples and exercise problems for the student to practice Covers, in detail, important topics, such as, access, local area, metropolitan, wide area all-optical and elastic networks Includes protocols, design, and analysis along with the control and management of the networks Offers exclusive chapters on advance topics to cover the present and future technological trends, such as, software defined optical networking and the flexible grid optical networks Optical WDM Networks: From Static to Elastic Networks is an excellent book for under and post graduate students in electrical/communication engineering. It will also be very useful to practicing professionals in communications, networking, and optical systems.
Elastic Optical Networks
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Author : Jurgen Bar
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2017-09-07
Elastic Optical Networks written by Jurgen Bar and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-07 with categories.
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
Optical Fiber Telecommunications Vib
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Author : Ori Gerstel
language : en
Publisher: Elsevier Inc. Chapters
Release Date : 2013-05-11
Optical Fiber Telecommunications Vib written by Ori Gerstel and has been published by Elsevier Inc. Chapters this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-05-11 with Technology & Engineering categories.
This chapter introduces elastic optical networking, which is a new paradigm for the wavelength division multiplexing (WDM) layer, based on a much more flexible use of the spectrum without a rigid wavelength grid, transponders that can be programmed for different modulation formats, tightly packed channels in a so called “superchannel” and impairment-aware control planes that tie the client layer and the optical layer together. We start by reviewing the changes in network usage patterns that require an overhaul of the network architecture. We then survey the enabling technologies, including flexible spectrum reconfigurable add/drop multiplexers (FlexSpectrum ROADMs), bit rate variable transponders (also known as software defined), and control plane capabilities. We provide a vision of the resulting architecture, including how to decide on the connection bit rate and other properties and how to manage the spectrum, and compare it to today’s WDM systems. We finish by surveying progress in standards for this technology.
Statistical Capacity Sharing And Virtualization In Survivable Elastic Optical Networks
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Author : Fahim Arefin Khandaker
language : en
Publisher:
Release Date : 2016
Statistical Capacity Sharing And Virtualization In Survivable Elastic Optical Networks written by Fahim Arefin Khandaker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with Network performance (Telecommunication) categories.
With the exponential growth of internet traffic, elastic optical network has gained popularity due to its flexible nature. Introduction of various bandwidth-hungry applications require dynamic provisioning and switching of connections based on the user demand. In statistical capacity sharing, spectrum resources can be shared between multiple connections. With the support of statistical capacity sharing, connections are able to switch to different rates according to requirement. However, Routing, Modulation format selection and Spectrum allocation (RMSA) is a challenging task in a statistically shared elastic optical network. Survivability is another important issue in elastic optical networks. It becomes more challenging when statistical sharing is introduced in to the network. In this work, we address statistical capacity sharing in elastic optical networks. We also consider virtualization of elastic optical network in this work. Our objective is to minimize blocking probability of a connection request to be admitted in to the network. We also intend to increase the probability of an existing connection request of achieving higher rates. First, we study the problem of statistical capacity sharing for static elastic optical networks. For a given set of connection requests, we design an analytical model in order to calculate the probability of achieving higher rates when a connection request demands for a higher rate. Our goal is to evaluate the degree of statistical sharing supported by the network. Next, we study the problem of RMSA in statistically shared elastic optical networks. We require an admission control policy in order to efficiently utilize limited network resources. Spectrum management is also a necessary step since the connection requests keep changing their line rate requirement over time. Spectrum must be allocated and re-allocated carefully. We evaluate for two line rates, base rate and each rate. Our objective is to minimize connection blocking and peak rate blocking. We then introduce survivability in elastic optical networks where statistical sharing is supported. The problem is to decide whether to provide protection to base rate only or both base rate and peak rate under capacity constraint. In our study, we only focus on base rate protection, while minimizing the base rate and peak rate blocking. Finally, in a different study, we investigate virtual optical network (VON) mapping problem. We introduce spectrum and modulation format convertible regenerators for efficient VON mapping and RMSA. We propose heuristic algorithms in order to minimize network blocking probability. Our proposed algorithms can achieve lower blocking probability by utilizing spectrum and modulation format convertible regenerators.
Optical Network Design And Planning
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Author : Jane M. Simmons
language : en
Publisher: Springer
Release Date : 2014-05-06
Optical Network Design And Planning written by Jane M. Simmons and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-06 with Technology & Engineering categories.
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.
Analysis Of The Spectrum Occupancy In Elastic Optical Network
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Author : Joel Caba Oriola
language : en
Publisher:
Release Date : 2017
Analysis Of The Spectrum Occupancy In Elastic Optical Network written by Joel Caba Oriola and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
Elastic Optical Networks were proposed in response to the large capacity and diverse traffic granularity of the future Internet. Depending on the bandwidth requirements, EONs allocate an appropriate-sized spectrum to each connection. This new scheme breaks with the traditional WDM networks which uses static connections. Nevertheless, these networks resources are poorly used under dynamic traffic condition. This thesis proposes a hybrid scheme where resources are allocated both in a static and dynamic manner. It also pretends to give a solution to the principal drawback of the hybrid scheme, the inability to absorb random connection request peaks.
Dynamic Routing And Resource Allocation In Elastic Optical Networks
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Author : Pouria Sayyad Khodashenas
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2015-04-01
Dynamic Routing And Resource Allocation In Elastic Optical Networks written by Pouria Sayyad Khodashenas and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-04-01 with categories.
Elastic Optical Networks (EON) is widely accepted today as the next step in the evolution toward high capacity networking. The idea behind it is to optimize the use of resources by flexibly assigning spectrum, data rate and modulation format adapted to the needs of the end-to-end connection requests. This book is devoted to the study of three important issues in EONs, 1) dynamic source aggregation of sub-wavelength connections, 2) correlation between traffic granularity and defragmentation periodicity and 3) using spectrum fragmentation to better allocate time-varying connections.