Download or read book Survivability Issues in Single and Multi domain Optical Networks written by Chengyi Gao and published by . This book was released on 2013 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Finally, we investigate the problem of survivable multi-domain routing when certain amount of intra-domain disjointness information is provided. With the assistance of the disjointness information, a pair of link-disjoint inter-domain paths with minimum total cost can then be obtained for each connection.
Download or read book Virtual Optical Network Design in Multi domain Optical Networks written by Sangjin Hong and published by . This book was released on 2016 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recent emergence of software defined networking (SDN) and cloud-based services is changing the current network ecosystem. Network virtualization is being extended from layer 2/3 (L2/L3) packet switched virtual private networks (VPNs) to layer 1 (L1) circuit switched VPNs and can provide multiple architectures simultaneously on a shared infrastructure. Optical network virtualization is required to support high-capacity dynamic traffic. The elements of optical network layer virtualization consist of sliceable bandwidth-variable optical transponders, optical cross-connects (OXCs), reconfigurable optical add-drop multiplexers (ROADMs), sliceable regenerators, optical fiber links, wavelengths, and spectrum slices. Most existing works on virtual optical network (VON) mapping consider virtualization in a single domain. However, in some cases, the resources required for a VON may span multiple geographic or administrative domains. We first consider the problem of efficient VON mapping in multi-domain optical networks (VON-MD) with the objective of minimizing total network link cost for a given VON demand that is embedded over a multi-domain optical network. We propose a heuristic algorithm that addresses the issues of virtual link ordering, domain selection, and topology aggregation and that attempts to minimize total network link cost. We provide an integer linear programming formulation (ILP-VON-MD) to compare with our heuristic approaches. We next consider VON provisioning over a flexible-grid multi-domain optical network with the objective of minimizing total network cost, including the cost of transponders, regenerators, and spectrum. We propose a three-step heuristic algorithm that addresses the issues of domain selection, topology aggregation, and routing, modulation format, and spectrum assignment (RMSA) when mapping virtual optical links onto multi-domain physical optical links. We also suggest an algorithm based on topology aggregation for provisioning a virtual optical network over a flexible-grid multi-domain optical network with the objective of minimizing the spectrum slot usage. Lastly, we consider survivable virtual network mapping in a multi-domain optical network with the objective of minimizing total network link cost for a given virtual traffic demand that is embedded over the multi-domain optical network. The survivability constraint guarantees the connectivity of virtual nodes after any single optical link failure.
Download or read book Optical Networks written by Hussein T. Mouftah and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical Networks - Architecture and Survivability, is a state-of-the-art work on survivable and cost-effective design of control and management for networks with IP directly over Wavelength Division Multiplexing (WDM) technology (or called Optical Internet). The authors address issues of signaling mechanisms, resource reservation, and survivable routing and wavelength assignment. Special emphasis has been given to the design of meshed, middle-sized, and wavelength-routed networks with dynamic traffic in the optical domain, such as the next-generation Metropolitan Area Network. Research and development engineers, graduate students studying wavelength-routed WDM networks, and senior undergraduate students with a background in algorithms and networking will find this book interesting and useful. This work may also be used as supplemental readings for graduate courses on internetworking, routing, survivability, and network planning algorithms.
Download or read book Survivability and Traffic Grooming in WDM Optical Networks written by Arun Somani and published by Cambridge University Press. This book was released on 2006-01-19 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: The advent of fiber optic transmission systems and wavelength division multiplexing (WDM) have led to a dramatic increase in the usable bandwidth of single fiber systems. This book provides detailed coverage of survivability (dealing with the risk of losing large volumes of traffic data due to a failure of a node or a single fiber span) and traffic grooming (managing the increased complexity of smaller user requests over high capacity data pipes), both of which are key issues in modern optical networks. A framework is developed to deal with these problems in wide-area networks, where the topology used to service various high-bandwidth (but still small in relation to the capacity of the fiber) systems evolves toward making use of a general mesh. Effective solutions, exploiting complex optimization techniques, and heuristic methods are presented to keep network problems tractable. Newer networking technologies and efficient design methodologies are also described.
Download or read book Survivability Issues in WDM Optical Networks written by Chang Liu and published by . This book was released on 2007 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: WDM optical networks make it possible for the bandwidth of transport networks to reach a level on which any failures would cause tremendous data loss and affect a lot of users. Thus, survivability issues of WDM optical networks have attracted a lot of research work. Within the scope of this dissertation, two categories of problems are studied, one is survivable mapping from IP topology to WDM topology, the other is p-cycle protection schemes in WDM networks.
Download or read book Fault Localization for Next Generation Survivable All optical Networks written by Mazen George Khair and published by . This book was released on 2008 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Control Architecture of Survivable Multi domain Optical Networks written by He He and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Domain Multi Domain Protection and Provisioning in Optical Networks written by Kien Do Trung and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Survivable Optical WDM Networks written by Canhui (Sam) Ou and published by Springer Science & Business Media. This book was released on 2010-07-19 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers these key topics: Shared-mesh protection for optical WDM networks. Survivable traffic grooming for hierarchical optical WDM networks. Survivable data over next-generation SONET/SDH with inverse multiplexing.
Download or read book Survivability and Traffic Grooming in WDM Optical Networks written by Arun Somani and published by . This book was released on 2006-01-12 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides coverage of survivability and traffic grooming; two key issues in modern optical networks.
Download or read book Survivability Issues in Optical and Optical Wireless Access Networks written by Khaled Maamoun and published by . This book was released on 2012-10-13 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design of Survivable Optical Networks by Mathematical Optimization written by Adrian Zymolka and published by Cuvillier Verlag. This book was released on 2007-06-14 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cost-efficient design of survivable optical telecommunication networks is the topic of this thesis. In cooperation with network operators, we have developed suitable concepts and mathematical optimization methods to solve this comprehensive planningtask in practice. Optical technology is more and more employed in modern telecommunication net-works.Digital information is therebytransmittedas short light pulses through glass fibers. Moreover, the optical medium allows for simultaneous transmissions on a single fiber by use of different wavelengths. Recent optical switches enable a direct forwarding of optical channels in the network nodes without the previously required signalretransformation to electronics. Their integration creates ongoingopticalconnections, which are called lightpaths. We study the problem of finding cost-efficient configurations of optical networks which meet specified communication requirements. A configuration comprises the determination of all lightpaths to establish as well as the detailed allocation of all required devices and systems. We use a flexible modeling framework for a realistic representation of the networks and their composition.For differentnetworkarchitectures, we formulate integer linear programs which model the design task in detail. Moreover, network survivability is an important issue due to the immense bandwidths offered by optical technology. Operators therefore request for designs which perpetuate protected connections and guarantee for a defined minimum throughput in case of malfunctions. In order to achieve an effective realization of scalable protection, we present a novel survivability concept tailored to optical networks and integrate several variants into the models. Our solution approach is based on a suitable model decomposition into two subtasks which separates two individually hard subproblems and enables this way to compute cost-efficient designs with approved quality guarantee. The first subtask consists of routing the connections with corresponding dimensioning of capacities and constitutes a common core task in the area of network planning. Sophisticated methods for such problems have already been developed and are deployed by appropriate integration. The second subtask is characteristic for optical networks and seeks for a conflict-free assignment of available wavelengths to the lightpaths using a minimum number of involved wavelength converters. For this coloring-like task, we derive particular models and study methods to estimate the number of unavoidable conversions. As constructive approach, we develop heuristics and an exact branch-and-price algorithm. Finally, we carry out an extensive computational study on realistic data, provided by our industrial partners. As twofold purpose, we demonstrate the potential of our approach for computing good solutions with quality guarantee, and we exemplify its flexibility for application to network design and analysis.
Download or read book Reliability Survivability and Quality of Large Scale Telecommunication Systems written by Peter Stavroulakis and published by John Wiley & Sons. This book was released on 2003-09-11 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Competition within the telecommunications companies is growing fiercer by the day. Therefore, it is vital to ensure a high level of quality and reliability within all telecommunications systems in order to guard against faults and the failure of components and network services. Within large scale systems such quality and reliability problems are ever higher. The metrics of Quality and Reliability have to date only been available in journals and technical reports of companies which have designed or produced major parts of systems used in large applications. This book provides a self-contained treatment enabling the reader to be able to produce, define and utilise the metrics of Quality and Reliability required for the design and implementation of a large application such as a world class event as the Olympic Games. An additional outcome is that this book can be used as a guide for producing an ISO standard for large scale Systems such as the Olympic Games. * Provides presentations of techniques used for solving quality and reliability problems in telecommunications networks replete with illustrations of their applications to real-world services and world class events * Individual chapters written by respective international experts within their fields This will prove highly informative for Practising engineers, researchers and telecommunications professionals, academics and graduate students in telecommunications, standards bodies and organisations such as ISO.
Download or read book IP over WDM written by Sudhir Dixit and published by John Wiley & Sons. This book was released on 2004-07-26 with total page 579 pages. Available in PDF, EPUB and Kindle. Book excerpt: The key technology to delivering maximum bandwidth over networks is Dense Wave-length Division Multiplexing (DWDM) Describes in detail how DWDM works and how to implement a range of transmission protocols Covers device considerations, the pros and cons of various network layer protocols, and quality of service (QoS) issues The authors are leading experts in this field and provide real-world implementation examples First book to describe the interplay between the physical and IP (Internet Protocol) layers in optical networks
Download or read book WDM Systems and Networks written by Neophytos (Neo) Antoniades and published by Springer Science & Business Media. This book was released on 2011-12-08 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modeling, Simulation, Design and Engineering of WDM Systems and Networks provides readers with the basic skills, concepts, and design techniques used to begin design and engineering of optical communication systems and networks at various layers. The latest semi-analytical system simulation techniques are applied to optical WDM systems and networks, and a review of the various current areas of optical communications is presented. Simulation is mixed with experimental verification and engineering to present the industry as well as state-of-the-art research. This contributed volume is divided into three parts, accommodating different readers interested in various types of networks and applications. The first part of the book presents modeling approaches and simulation tools mainly for the physical layer including transmission effects, devices, subsystems, and systems), whereas the second part features more engineering/design issues for various types of optical systems including ULH, access, and in-building systems. The third part of the book covers networking issues related to the design of provisioning and survivability algorithms for impairment-aware and multi-domain networks. Intended for professional scientists, company engineers, and university researchers, the text demonstrates the effectiveness of computer-aided design when it comes to network engineering and prototyping.
Download or read book Issues in Electronics Research and Application 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 3091 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Electronics Research and Application: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Electronics Research and Application. The editors have built Issues in Electronics Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Electronics Research and Application in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Electronics Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Download or read book Artificial Intelligence and Sustainable Computing written by Manjaree Pandit and published by Springer Nature. This book was released on 2023-10-25 with total page 737 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents high-quality research papers presented at 4th International Conference on Sustainable and Innovative Solutions for Current Challenges in Engineering and Technology (ICSISCET 2022) held at Madhav Institute of Technology & Science (MITS), Gwalior, India, from November 19 to 20, 2022. The book extensively covers recent research in artificial intelligence (AI) that knit together nature-inspired algorithms, evolutionary computing, fuzzy systems, computational intelligence, machine learning, deep learning, etc., which is very useful while dealing with real problems due to their model-free structure, learning ability, and flexible approach. These techniques mimic human thinking and decision-making abilities to produce systems that are intelligent, efficient, cost-effective, and fast. The book provides a friendly and informative treatment of the topics which makes this book an ideal reference for both beginners and experienced researchers.
