Download or read book Design and Analysis of Survivable Wdm Mesh Networks written by Ji Li and published by . This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Survivable Design and Analysis of WDM Mesh Networks written by Wei Huo and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, we are particularly interested in studying the impact of network element failure(s) on network survivability. Namely, we propose and analyze a series of models and schemes to protect and restore the affected services in the networks, thus achieve a better survivability in optical networks. In additions to an introduction of optical networks and a survey of the related work, this thesis first focuses on the problem of fast recovery in Chapter 3. By using the framework of Offset-Time restoration, a novel model based on time-driven scheduling is proposed. It substantially shortens the restoration time and can be applied in both single-link failure and dual-link failure scenarios. Next, capacity reprovisioning, as a simple and efficient mechanism to protect a network against multiple failures, is investigated and a new reprovisioning scheme is proposed in Chapter 4. Finally, the application of capacity reprovisioning in traffic grooming is considered. Two frameworks, i.e., lightpath level reprovisioning and connection level reprovisioning, are proposed in Chapter 5 to improve the survivability of optical networks with grooming capability.
Download or read book Design and Analysis of Survivable WDM Mesh Networks written by Ji Li (Ph. D.) and published by . This book was released on 2007 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design and Analysis of Survivable Telecom Mesh Networks written by Lei Song and published by . This book was released on 2007 with total page 250 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 Design and Analysis of Survivable Optical Networks written by Canhui (Sam) Ou and published by . This book was released on 2004 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book WDM Mesh Networks written by Hui Zang and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, with the rapid growth of the Internet, the bandwidth demand for data traffic is exploding. Optical networks based on wavelength-division multiplexing (WDM) technology offer the promise to satisfy the bandwidth requirements of the Internet infrastructure. With WDM technology, signals are carried simultaneously on mUltiple wavelengths on a single fiber. WDM provides a practical approach of resolving the mismatch between the fiber ca pacity and the peak electronic processing speed. Mesh-based WDM networks have recently attracted much research and development interest since the In ternet topology is meshed in nature, and more importantly, mesh-based WDM networks are flexible with respect to routing and survivability. This book exam ines the management and survivability issues of mesh-based WDM networks and proposes new WDM network protocols and algorithms that could make telecommunication networks more efficient. Wavelength-routing has been one of the most important technologies to em ploy WDM in backbone networks. In wavelength-routed WDM networks, optical channels, which are referred to as lightpaths, are set up between WDM terminals. Most chapters of this bock are focused on various issues related to wavelength-routed networks, namely, routing and wavelength-assignment, con trol and management, fault management, and wavelength-converter placement. This book also presents an all-optical packet-switched network architecture based on the concept of photonic slot routing. The audience for this book are network designers and planners, research and development engineers active in the field of telecommunications, and students of optical networking at the graduate or senior undergraduate levels.
Download or read book Designing Survivable Wavelength Division Multiplexing WDM Mesh Networks written by Anwar Haque and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book WDM and Photonic Networks written by D. W. Faulkner and published by IOS Press. This book was released on 2000 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 1 WDM and Photonic Networks will focus on recent developments in long-haul WDM and photonic networks and will include invited papers from key vendors and technologists. A paper on DWDM by Lucent will show how Raman amplification enables the quadrupling of the line rate from OC-192 to OC-768 in a recent 1.6Tb/s experiment.
Download or read book Design Survivable WDM Mesh Network Using Path Protection microform written by Zhenjiang Han and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 2003 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Survivable Design in WDM Mesh Networks written by Wensheng He and published by . This book was released on 2006 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation addresses several important survivable design issues in WDM mesh networks. Shared backup path protection has been shown to be efficient in terms of capacity utilization, due to the sharing of backup capacity. However, sharing of backup capacity also complicates the restoration process, and leads to slow recovery. The p-cycle scheme is the most efficient ring-type protection method in terms of capacity utilization. Recently, the concept of pre-cross-connected protection was proposed to increase the recovery speed of shared path protection. We overview these protection methods. The recovery time of these schemes are compared analytically. We formulate integer programming optimization problems for three protection methods in static traffic scenario, considering wavelength continuity constraint. We develop a p-cycle based scheme to deal with dynamic traffic in WDM networks. We use a two-step approach. In first step, we find a set of p-cycles to cover the network and reserve enough capacity in p-cycles. In second step, we route the requests as they randomly arrive one by one. We propose two routing algorithms. Compared to the shared path protection, the p-cycle based design has the advantage of fast recovery, less control signaling, less dynamic state information to be maintained. To evaluate the blocking performance of proposed method, we compare it with shared backup path protection by extensive simulations. We propose a path-based protection method for two-link failures in mesh optical networks. We identify the scenarios where the backup paths can share their wavelengths without violating 100% restoration guarantee (backup multiplexing). We use integer linear programming to optimize the total capacity requirement for both dedicated- and shared-path protection schemes. The recently proposed light trail architecture offers a promising candidate for carrying IP centric traffic over optical networks. The survivable design is a critical part of the integral process of network design and operation. We propose and compare two protection schemes. The survivable light trail design problem using connection based protection model is solved using a two-step approach.
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 Mesh based Survivable Networks written by Wayne D. Grover and published by Prentice Hall. This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A whole new suite of how-to capabilities, theoretical understandings, and newideas to apply to network planning and design.
Download or read book Design and Analysis of Survivability for Emerging Network Applications written by Qingya She and published by . This book was released on 2008 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: We investigate survivable traffic grooming for anycast over Wavelength Division Multiplexing (WDM) networks. An auxiliary graph model and three differentiated survivable schemes based on the graph model are proposed. At last, we focus on reliable multi-resource manycast over Optical Burst Switching (OBS) networks. Reliable transmission mechanisms are proposed to minimize the resource blocking probability, which results from burst contention in the OBS network and from resource unavailability at the destinations. An analytical model for various schemes is developed.
Download or read book Design and Analysis of Survivable Multipath Provisioning in Telecom Mesh Networks written by Sheng Huang and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With the maturity and deployment of next-generation SONET/SDH technologies, optical networks employing wavelength-division multiplexing (WDM) technology have emerged as the most viable infrastructure to meet the huge bandwidth demand for the future Internet. In such networks, survivability is a critical concern because the failure of a network element may cause tremendous data and revenue loss. This research investigates the issues of survivable multipath provisioning in next-generation telecom networks. Multipath provisioning, supported by virtual concatenation (VCAT), is a key feature of next-generation SONET/SDH networks. We first investigate the differential-delay constraint (DDC) problem in multipath routing. We present an effective approach for failure protection and backup sharing in multipath provisioning. We develop a novel algorithm to calculate differential-delay-constrained K link-disjoint paths and evaluate its performance with different DDC values. Next, we explore adaptive reliable multipath provisioning to meet the service-level agreement (SLA)between a network operator and its customer. We develop a model to calculate connection availability using multiple disjoint paths. Based on the model, we design an adaptive algorithm to increase provisioning efficiency. Two bandwidth-migration methods are proposed and studied for mission-critical requests. Then, we study the problem of survivable traffic grooming with inverse multiplexing. We compare the protection-at-connection and protection-at-lightpath level approaches with typical constraints including DDC, inverse multiplexing factor (IMF), and grooming ports. Finally, we propose and investigate the characteristics of a multistate multipath provisioning scheme for telecom mesh networks. We integrate the conventional primary-backup method with reprovisioning and degraded service into a state-transition model to handle different levels of failures, including disaster failure (DF). This work makes important contributions, including new models, algorithms, and architectures for survivable multipath provisioning in next-generation telecom networks.
Download or read book Architectures and Algorithms for Survivable Wavelength shared Optical WDM Mesh Networks written by Mahesh Sivakumar and published by . This book was released on 2007 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design and Analysis of WDM Network Architectures written by Hui Zang and published by . This book was released on 2001 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
