Author: Edward MutafungwaPublisher:
ISBN: 9789512271757
Category :
Languages : en
Pages : 55
Book Description
Design and Performance Analysis of Pure and Hybrid WDM Optical Networks
Author: Edward MutafungwaPublisher:
ISBN: 9789512271757
Category :
Languages : en
Pages : 55
Book Description
Design and Performance Analysis of WDM Optical Networks
Author: Ye TaoPublisher:
ISBN:
Category :
Languages : en
Pages : 264
Book Description
Abstract: Wavelength Division Multiplexing (WDM) is now being widely used in optical networks. WDM significantly increases the capacity of a single fiber by allowing it to simultaneously transmit multiple wavelengths. While such enormous capacity is very exciting, it has also led to the advent of drastically more complex WDM networks. In this work, we consider two architecture design problems for optical networks: (1) the optimal amplifier placement problem, and (2) the traffic grooming, routing, and protection problem for optical networks. In an optical network, optical signals from transmitters attenuate gradually as they propagate through optical fibers, therefore their strength needs to be restored by optical amplifiers before they become too weak to be detected by receivers. Optical amplifiers, however, also introduce the spontaneous emission noise, which is a major problem associated with them. In general, a long optical channel needs enough amplifiers in order to limit the cumulative spontaneous emission noise and attain adequate amplification gain. In our amplifier placement problem, the goal is to minimize the cost associated with optical amplifiers in an optical network subject to constraints on the cumulative spontaneous emission noise. The optical network can be a linear or a mesh network, and the locations of amplifiers can be arbitrary or pre-specified, which are referred as continuous and discrete case, respectively. We propose several different methods based on various optimization techniques and heuristics to solve the problem. In the second part of this work, we consider the traffic grooming, routing, and protection problem in optical networks. There are two basic architectures used in optical networks: ring and mesh. The ring architecture is relatively simple and easy to implement, and it also provides a straightforward way for traffic protection. On the other hand, the mesh architecture is more resilient to various network failures, but is much more complex. Recently, a hybrid architecture that is based on and takes advantage of both ring and mesh architectures has been proposed. We study the traffic grooming, routing, and protection problem for ring, mesh, and hybrid architectures, and use a two-step approach in conjunction with the linear programming technique to solve the problem. Numerical results are provided for a comprehensive comparison between these different architectures.
Optical WDM Networks
Author: Devi ChadhaPublisher: John Wiley & Sons
ISBN: 1119393345
Category : Science
Languages : en
Pages : 387
Book Description
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.
Performance Analysis and Design of WDM Based Optical Communication Systems Using a Volterra Series Method
Author: Qun ZhangDesign, Implementation, and Analysis of Next Generation Optical Networks: Emerging Research and Opportunities
Author: Imtiaz, Waqas AhmedPublisher: IGI Global
ISBN: 1522597697
Category : Computers
Languages : en
Pages : 221
Book Description
By the end of the decade, approximately 50 billion devices will be connected over the internet using multiple services such as online gaming, ultra-high definition videos, and 5G mobile services. The associated data traffic demand in both fixed and mobile networks is increasing dramatically, causing network operators to have to migrate the existing optical networks towards next-generation solutions. The main challenge within this development stems from network operators having difficulties finding cost-effective next-generation optical network solutions that can match future high capacity demand in terms of data, reach, and the number of subscribers to support multiple network services on a common network infrastructure. Design, Implementation, and Analysis of Next Generation Optical Networks: Emerging Research and Opportunities is an essential reference source that discusses the next generation of high capacity passive optical access networks (PON) in terms of design, implementation, and analysis and offers a complete reference of technology solutions for next-generation optical networks. Featuring research on topics such as artificial intelligence, electromagnetic interface, and wireless communication, this book is ideally designed for researchers, engineers, scientists, and students interested in understanding, designing, and analyzing the next generation of optical networks.
Modeling, Performance Analysis, and Survivability Evaluation of Multi-fiber WDM Optical Networks
Author: Fahad A. Al-ZahraniPublisher:
ISBN:
Category : Optical communications
Languages : en
Pages : 484
Book Description
Optical Network Design and Planning
Author: Jane M. SimmonsPublisher: Springer
ISBN: 3319052276
Category : Technology & Engineering
Languages : en
Pages : 529
Book Description
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.
Optical WDM Networks
Author: Krishna M. SivalingamPublisher: Springer Science & Business Media
ISBN: 0306470217
Category : Computers
Languages : en
Pages : 351
Book Description
Optical WDM networking technology is spearheading a bandwidth revolution in the networking infrastructure being developed for the next generation Internet. Rapid advances in optical components have enabled the transition from point-to-point WDM links to all-optical networking. Optical WDM Networks: Principles and Practice presents some of the most important challenges facing the optical networking community, along with some suggested solutions. Earlier textbooks in optical networking have a narrower perspective, and rapidly advancing research has created the need for fresh and current information on problems and issues in the field. The volume editors and contributing authors have endeavoured to capture a substantial subset of the key problems and known solutions to these problems. All of the chapters are original contributions from leading international researchers. The chapters address a wide variety of topics, including the state of the art in WDM technology, physical components that make up WDM fiber-optic networks, medium access protocols, wavelength routed networks, optical access networks, network management, and performance evaluation of wavelength routing networks. The chapters also survey critical points in past research and tackle more recent problems. Practitioners and network product engineers interested in current state-of-the-art information beyond textbook-type coverage, and graduate students commencing research in this area, will appreciate the concise - and pertinent - information presented herein.
Design of Optical WDM Networks
Author: Byrav RamamurthyPublisher: Springer Science & Business Media
ISBN: 1461516757
Category : Computers
Languages : en
Pages : 177
Book Description
Lo, soul! seest thou not God's purpose from the first? The earth to be spann'd, connected by net-work From Passage to India! Walt Whitman, "Leaves of Grass", 1900. The Internet is growing at a tremendous rate today. New services, such as telephony and multimedia, are being added to the pure data-delivery framework of yesterday. Such high demands on capacity could lead to a "bandwidth-crunch" at the core wide-area network resulting in degra dation of service quality. Fortunately, technological innovations have emerged which can provide relief to the end-user to overcome the In ternet's well-known delay and bandwidth limitations. At the physical layer, a major overhaul of existing networks has been envisaged from electronic media (such as twisted-pair and cable) to optical fibers - in the wide area, in the metropolitan area, and even in the local area set tings. In order to exploit the immense bandwidth potential of the optical fiber, interesting multiplexing techniques have been developed over the years. Wavelength division multiplexing (WDM) is such a promising tech nique in which multiple channels are operated along a single fiber si multaneously, each on a different wavelength. These channels can be independently modulated to accommodate dissimilar bit rates and data formats, if so desired. Thus, WDM carves up the huge bandwidth of an optical fiber into channels whose bandwidths (1-10 Gbps) are compati ble with peak electronic processing speed.
Author: Jason P. Jue