The Complexity Of Traffic Grooming In Optical Path Networks With Egress Traffic
DOWNLOAD
Download The Complexity Of Traffic Grooming In Optical Path Networks With Egress Traffic PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get The Complexity Of Traffic Grooming In Optical Path Networks With Egress Traffic book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
The Complexity Of Traffic Grooming In Optical Path Networks With Egress Traffic
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2003
The Complexity Of Traffic Grooming In Optical Path Networks With Egress Traffic written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
We consider the problem of minimizing network costs when grooming traffic in optical networks that support Wavelength Division Multiplexing (WDM). While the general problem has been shown to be NP-Hard for a number of cost measures, there still exist restricted problems for which no complexity bound is known. In this research, we restrict our attention to traffic grooming for path networks with egress (all-to-one) traffic. This restricted model has practical significance for high speed (optical) access networks and can also lead to better bounds and approximations on more general network topologies (such as ring and star networks) that can be decomposed into path networks. Three important cost measures for this restricted model are studied. The first cost measure is the total number of ADMs used by the solution. Minimizing this cost was known to be NP-Complete even for egress traffic without using cross connects. We show that allowing an unbounded number of wavelengths obviates the need for digital cross connects at the nodes and hence the problem remains NP-Complete even when cross connects are allowed. The second cost measure is the number of transceivers used by the solution. We show that the problem of minimizing the number of transceivers is NP-Complete, even when restricted to egress traffic. We then develop a simple approximation scheme where the transceiver cost exceeds the minimum by at most the number of required wavelengths. Finally, we show that under certain conditions, there exist solutions that simultaneously minimize both ADM and transceiver costs. The third cost model aims to minimize the total electronic switching in the network. For this cost measure, we develop a polynomial time algorithm to determine the cost and structure of an optimum solution when the wavelength capacity constraint is relaxed. A closed form expression to determine the minimum cost is presented for problem instances with uniform traffic. We observe that these costs provide a l.
The Complexity Of Traffic Grooming In Optical Path Networks With Egress Traffic
DOWNLOAD
Author : Prashant Iyer
language : en
Publisher:
Release Date : 2003
The Complexity Of Traffic Grooming In Optical Path Networks With Egress Traffic written by Prashant Iyer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
Keywords: lightpaths, virtual topology, NP-Completeness.
Traffic Grooming For Optical Networks
DOWNLOAD
Author : Rudra Dutta
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-08-06
Traffic Grooming For Optical Networks written by Rudra Dutta and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-08-06 with Technology & Engineering categories.
The objective of this book is to provide timely and comprehensive coverage of the principles, technology, practice, and future of tra?c grooming in op- cal networks. Tra?c grooming considerations are already shaping new switch designs and standards, including next generation Synchronous Optical N- work/Synchronous Digital Hierarchy (SONET/SDH) and Generic Framing Procedure (GFP), are a?ecting future optical network technologies, and are creating new business opportunities. Yet information on the topic is sc- tered and there is a shortage of technical sources where relevant material can be accessed in a single location. The motivation for this book was to bridge this gap by providing a single authoritative point of reference to the tra?c grooming state of the art. Tra?c grooming is a complex subject, involving a number of interrelated concepts, standards, and technologies. It is also a rapidly growing ?eld of study,makingitdi?cultforasinglebooktocoverallaspectsindetail.Tocope with this scope and complexity, this book provides appropriate background information, followed by an in-depth study of a few key issues and challenges. It has been our intention to bring together a broad range of perspectives from preeminent researchers in both academia and industry. We believe that these multiple, diverse points of view add considerable value and make the contents more interesting to the reader.
Advances In Optical Networks And Components
DOWNLOAD
Author : Partha Pratim Sahu
language : en
Publisher: CRC Press
Release Date : 2020-07-09
Advances In Optical Networks And Components written by Partha Pratim Sahu and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-07-09 with Computers categories.
This book is intended as a graduate/post graduate level textbook for courses on high-speed optical networks as well as computer networks. The ten chapters cover basic principles of the technology as well as latest developments and further discuss network security, survivability, and reliability of optical networks and priority schemes used in wavelength routing. This book also goes on to examine Fiber To The Home (FTTH) standards and their deployment and research issues and includes examples in all the chapters to aid the understanding of problems and solutions. Presents advanced concepts of optical network devices Includes examples and exercises inall the chapters of the book to aid the understanding of basic problems and solutions for undergraduate and postgraduate students Discusses optical ring metropolitan area networks and queuing system and its interconnection with other networks Discusses routing and wavelength assignment Examines restoration schemes in the survivability of optical networks
Fun With Algorithms
DOWNLOAD
Author : Pierluigi Crescenzi
language : en
Publisher: Springer
Release Date : 2007-06-27
Fun With Algorithms written by Pierluigi Crescenzi and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-06-27 with Computers categories.
This book constitutes the refereed proceedings of the 4th International Conference on Fun with Algorithms, FUN 2007, held in Castiglioncello, Italy in June 2007. It details the use, design, and analysis of algorithms and data structures, focusing on results that provide amusing, witty, but nonetheless original and scientifically profound, contributions to the area.
Long Haul And Access Networks Optical Metro And Wdm
DOWNLOAD
Author : A. Lord
language : en
Publisher: IOS Press
Release Date : 2001
Long Haul And Access Networks Optical Metro And Wdm written by A. Lord and has been published by IOS Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Computers categories.
This volume contains the proceedings of the NOC 2001 at Adastral park, UK, June 26-29 2001. With about 70 papers, this book highlights the gigabit ethernet PON developments, and other work on standard broadband PONs such as, dynamic bandwith assignment. There are 10 papers on optical packet switiching and work on optical cross-connects and DWDM for long-haul systems is presented.
Journal Of Communications And Networks
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2004
Journal Of Communications And Networks written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Computer networks categories.
Optical Wdm Networks
DOWNLOAD
Author : Biswanath Mukherjee
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-06-15
Optical Wdm Networks written by Biswanath Mukherjee and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-06-15 with Computers categories.
Research and development on optical wavelength-division multiplexing (WDM) networks have matured considerably. While optics and electronics should be used appropriately for transmission and switching hardware, note that "intelligence'' in any network comes from "software,'' for network control, management, signaling, traffic engineering, network planning, etc.The role of software in creating powerful network architectures for optical WDM networks is emphasized. Optical WDM Networks is a textbook for graduate level courses. Its focus is on the networking aspects of optical networking, but it also includes coverage of physical layers in optical networks. The author introduces WDM and its enabling technologies and discusses WDM local, access, metro, and long-haul network architectures. Each chapter is self-contained, has problems at the end of each chapter, and the material is organized for self study as well as classroom use. The material is the most recent and timely in capturing the state-of-the-art in the fast-moving field of optical WDM networking.
Network Architectures Management And Applications Ii
DOWNLOAD
Author : S. J. Ben Yoo
language : en
Publisher: SPIE-International Society for Optical Engineering
Release Date : 2005
Network Architectures Management And Applications Ii written by S. J. Ben Yoo and has been published by SPIE-International Society for Optical Engineering this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Computers categories.
Proceedings of SPIE present the original research papers presented at SPIE conferences and other high-quality conferences in the broad-ranging fields of optics and photonics. These books provide prompt access to the latest innovations in research and technology in their respective fields. Proceedings of SPIE are among the most cited references in patent literature.
Knapsack Problems
DOWNLOAD
Author : Hans Kellerer
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-19
Knapsack Problems written by Hans Kellerer and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-19 with Mathematics categories.
Thirteen years have passed since the seminal book on knapsack problems by Martello and Toth appeared. On this occasion a former colleague exclaimed back in 1990: "How can you write 250 pages on the knapsack problem?" Indeed, the definition of the knapsack problem is easily understood even by a non-expert who will not suspect the presence of challenging research topics in this area at the first glance. However, in the last decade a large number of research publications contributed new results for the knapsack problem in all areas of interest such as exact algorithms, heuristics and approximation schemes. Moreover, the extension of the knapsack problem to higher dimensions both in the number of constraints and in the num ber of knapsacks, as well as the modification of the problem structure concerning the available item set and the objective function, leads to a number of interesting variations of practical relevance which were the subject of intensive research during the last few years. Hence, two years ago the idea arose to produce a new monograph covering not only the most recent developments of the standard knapsack problem, but also giving a comprehensive treatment of the whole knapsack family including the siblings such as the subset sum problem and the bounded and unbounded knapsack problem, and also more distant relatives such as multidimensional, multiple, multiple-choice and quadratic knapsack problems in dedicated chapters.