Download or read book Wavelength Assignment Algorithms for WDM Optical Networks microform written by Zhengbing Bian and published by Library and Archives Canada = Bibliothèque et Archives Canada. This book was released on 2003 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wavelength Assignment Algorithms for WDM Optical Networks written by Zhengbing Bian and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Distributed Wavelength Assignment Algorithms and the Traffic Classification and Service ClaServ in Wavelength routed All optical Networks microform written by Yunhao Li and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 2002 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Routing and Wavelength Assignment Algorithms in Wdm Optical Networks written by Amit Wason and published by LAP Lambert Academic Publishing. This book was released on 2011-10 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a good literature survey of various mathematical models and routing & wavelengths assignment algorithms in WDM optical networks. Some of the new algorithms for optimization of blocking probability have aslo been covered. This book is good for researchers who are working on optical networks and advancements in fiber optics communication. Mathematical models covered in this book are simple and easy to implement. A good number of routing and wavelength assignment algorithms have also been covered in this book which can be used to reduce blocking probability of the optical network. This book can be very helpful to the research scholars.

Download or read book Implementation of Routing and Wavelength Assignment Algorithms for Wavelength convertible WDM Optical Networks in ARTHUR written by Kanna Potharlanka and published by . This book was released on 2000 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wavelength Assignment Algorithms for Wavelength Division Multiplexing Optical Networks written by and published by . This book was released on 2014 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internet traffic -- Wavelength -- Algorithms 0́3 Internet 0́3Multiplexing -- Optical networks.

Download or read book Multiwavelength Optical Networks written by Xiaohua Jia and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiwavelength Optical Networks systematically studies the major research issues in WDM (Wavelength Division Multiplexing) optical networks, such as routing and wavelength assignment, QoS multicast routing, design of logical topologies, and placement of wavelength converters. The book consists of two parts. The first part studies the fundamental concepts and principles of WDM networks. The second part discusses advanced and research issues of WDM networks. The authors of the book have many years of working experience in the areas of computer networks and network optimization. The book discusses many difficult issues of WDM networks in a very comprehensive way. For each problem, there is a background discussion, and then the mathematical formulation, followed by the solutions.

Download or read book Dissemination of Information in Optical Networks written by Subir Bandyopadhyay and published by Springer. This book was released on 2009-09-02 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a broad overview of techniques used in the design of Wavelength Division Multiplexing (WDM) networks for efficient dissemination of information in computer networks. It starts with an overview of the hardware components then provides a thorough review of WDM. Each topic is covered rigorously with emphasis on detailed explanations of the approaches used. Numerous exercises are included.

Download or read book Algorithms for Wavelength Assignment and Call Control in Optical Networks written by Zhengbing Bian and published by . This book was released on 2008 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Routing and channel assignment is a fundamental problem in computer/communication networks. In wavelength division multiplexing (WDM) optical networks, the problem is called routing and wavelength assignment or routing and path coloring (RPC) problem: given a set of connection requests, find a routing path to connect each request and assign each path a wavelength channel (often called a color) subject to certain constraints. One constraint is the distinct channel assignment: the colors (channels) of the paths in the same optical fiber must be distinct. Another common constraint is the channel continuity: a path is assigned a single color. When a path may be assigned different colors on different fibers, the RPC problem is known as the routing and call control (RCC) problem. When the routing paths are given as part of the problem input, the RPC and RCC problems are called the path coloring and call control problems, respectively. Major optimization goals for the above problems include to minimize the number of colors for realizing a given set of requests and to maximize the number of accommodated requests using a given number of colors. Those optimization problems are NP-hard for most network topologies, even for simple networks like rings and trees of depth one. In this thesis, we make the following contributions. (1) We give better approximation algorithms which use at most 3L (L is the maximum number of paths in a fiber) colors for the minimum path coloring problem in trees of rings. The 3L upper bound is tight since there are instances requiring 3L colors. We also give better approximation algorithms for the maximum RPC problem in rings. (2) We develop better algorithms for the minimum and maximum RPC problems on multi-fiber networks. (3) We develop better algorithms for the call control problem on simple topologies. (4) We develop carving-decomposition based exact algorithms for the maximum edge-disjoint paths problem in general topologies. We develop and implement tools for computing optimal branch/carving decompositions of planar graphs to provide a base for the branch/carving-decomposition based algorithms. These tools are of independent interests.

Download or read book Wavelength Assignment Algorithms for Optical Multicast in WDM Networks written by Yinzhu Zhou and published by . This book was released on 2007 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Study of Routing and Wavelength Assignment Problem and Performance Analysis of Genetic Algorithm for All Optical Networks written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: All-optical networks uses the concept of wavelength division multiplexing (WDM). The problem of routing and wavelength assignment (RWA) is critically important for increasing the efficiency of wavelength routed All-optical networks. For the given set of connections, the task of setting up lightpaths by routing and assigning a wavelength to each connection is called routing and wavelength allocation problem. In work to date, the problem has been formulated as integer linear programming problem. There are two variations of the problem: static and dynamic, in the static case, the traffic is known where as in dynamic case, connection request arrive in some random fashion. Here we adopt the static view of the problem. We have studied the Genetic Algorithm to solve the RWA problem and also we studied a modified Genetic Algorithm with reference to the basic model. We studied a novel opimization problem formulations that offer the promise of radical improvements over the existing methods. We adopt a static view of the problem and saw new integer- linear programming formulations, which can be addressed with highly efficient linear programming methods and yield optimal or near-optimal RWA policies. All-optical WDM networks are chracterized by multiple metrics (hop-count, cost, delay), but generally routing protocols only optimize one metric, using some variant shortest path algorithm (e.g., the Dijkstra, all-pairs and Bellman-ford algorithms). The multicriteria RWA problem has been solved combining the relevant metrics or objective functions. The performance of RWA algorithms have been studied across the different standard networks. The performance of both the algorithms are studied with respect to the time taken for making routing decision, number of wavelengths required and cost of the requested lightpaths. It has been observed that the modified genetic algorithm performed better than the existing algorithm with respect to the time and cost parameters.

Download or read book Optical Network Routing and Wavelength Assignment Algorithms written by Toby S. Lazar and published by . This book was released on 2004 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Routing and wavelength assignment in optical networks written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A indústria das comunicações tem passado nos últimos anos, mundialmente, por profundas transformações. A Internet é a responsável pela maior destas transformações. Com o advento da Internet, existe a necessidade de uma banda de transmissão maior para o tráfego de dados. Para resolver esse problema, surgiu o conceito de redes ópticas e a multiplexação no domínio do comprimento de onda. Entretanto, isso criou um outro problema: o roteamento dos pacotes. A maior parte das redes de comunicação hoje em dia, ainda possui muitos sinais eletrônicos, o que significa que os sinais ópticos precisam ser convertidos em elétricos para serem ampliados, regenerados ou roteados e, depois, reconvertidos para ópticos. Isso acaba gerando atrasos na transmissão dos sinais e um gargalo nas redes ópticas. Para minimizar este problema, vários algoritmos foram criados. Apegando-se a tais fatos, este estudo explora o tema para implementar um algoritmo de enumeração recursiva, que tem como objetivo alocação de comprimentos em redes ópticas, visando minimizar o custo total de transmissão. Esse algoritmo foi testado e comparado com o algoritmo de programação linear, que fornece a solução ótima.

Download or read book Algorithm for Dynamic Wavelength Assignment in Wavelength Routed All optical Networks written by Andrei G. Stoica and published by . This book was released on 2000 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Algorithms for DWDM Optical Networks Optimization written by Paulo Maurício and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Hierarchical Wavelength Assignment Algorithm with Wavelength Re use for Routing Within WDM Networks written by Rolfe Josef Sassenfeld and published by . This book was released on 1998 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Routing and Wavelength Assignment Algorithms for Optical DWDM Networks written by Tibor Fábry-Asztalos and published by . This book was released on 1999 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: