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Author: Sheng Huang Publisher: ISBN: 9781109661910 Category : Languages : en Pages :
Book Description
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.
Author: Sheng Huang Publisher: ISBN: 9781109661910 Category : Languages : en Pages :
Book Description
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.
Author: Guo Li Publisher: ISBN: Category : Multiplexing Languages : en Pages : 176
Book Description
"Back to the 1 960s, Internet originated from the military research of survivable, fault-tolerant and distributed computer networks. Half-century later, quarter of Earth's population use Internet services. International business transactions are promoted by the accelerated information interaction across the world. With the prosperity Internet brought to our society, its survivability and capacity become an important issue.
Author: Krishna Kant Publisher: Springer Science & Business Media ISBN: 3642113214 Category : Computers Languages : en Pages : 539
Book Description
This book constitutes the refereed proceedings of the 11th International Conference on Distributed Computing and Networking, ICDCN 2010, held in Kolkata, India, during January 3-6, 2010. There were 169 submissions, 96 to the networking track and 73 to the distributed computing track. After review the committee selected 23 papers for the networking and 21 for the distributed computing track. The topics addressed are network protocol and applications, fault-tolerance and security, sensor networks, distributed algorithms and optimization, peer-to-peer networks and network tracing, parallel and distributed systems, wireless networks, applications and distributed systems, optical, cellular and mobile ad hoc networks, and theory of distributed systems.
Author: Anna Tzanakaki Publisher: Springer Nature ISBN: 3030380858 Category : Computers Languages : en Pages : 661
Book Description
This book constitutes the refereed proceedings of the 23rd International IFIP conference on Optical Network Design and Modeling, ONDM 2019, held in Athens, Greece, in May 2019. The 39 revised full papers were carefully reviewed and selected from 87 submissions. The papers focus on cutting-edge research in established areas of optical networking as well as their adoption in support of a wide variety of new services and applications. This involves the most recent trends in networking including 5G and beyond, big data and network data analytics, cloud/edge computing, autonomic networking, artificial intelligence assisted networks, secure and resilient networks, that drive the need for increased capacity, efficiency, exibility and adaptability in the functions that the network can perform. In this context new disaggregated optical network architectures were discussed, exploiting and integrating novel multidimensional photonic technology solutions as well as adopting open hardware and software platforms relying on software defined networking (SDN), and network function virtualization (NFV) to allow support of new business models and opportunities.
Author: Rachid Benlamri Publisher: Springer ISBN: 3642305075 Category : Computers Languages : en Pages : 662
Book Description
This two-volume-set (CCIS 293 and CCIS 294) constitutes the refereed proceedings of the International Conference on Networked Digital Technologies, NDT 2012, held in Dubai, UAE, in April 2012. The 96 papers presented in the two volumes were carefully reviewed and selected from 228 submissions. The papers are organized in topical sections on collaborative systems for e-sciences; context-aware processing and ubiquitous systems; data and network mining; grid and cloud computing; information and data management; intelligent agent-based systems; internet modeling and design; mobile, ad hoc and sensor network management; peer-to-peer social networks; quality of service for networked systems; semantic Web and ontologies; security and access control; signal processing and computer vision for networked systems; social networks; Web services.
Author: Jeff Kennington Publisher: Springer Science & Business Media ISBN: 1441961119 Category : Business & Economics Languages : en Pages : 384
Book Description
This book surveys state-of-the-art optimization modeling for design, analysis, and management of wireless networks, such as cellular and wireless local area networks (LANs), and the services they deliver. The past two decades have seen a tremendous growth in the deployment and use of wireless networks. The current-generation wireless systems can provide mobile users with high-speed data services at rates substantially higher than those of the previous generation. As a result, the demand for mobile information services with high reliability, fast response times, and ubiquitous connectivity continues to increase rapidly. The optimization of system performance has become critically important both in terms of practical utility and commercial viability, and presents a rich area for research. In the editors' previous work on traditional wired networks, we have observed that designing low cost, survivable telecommunication networks involves extremely complicated processes. Commercial products available to help with this task typically have been based on simulation and/or proprietary heuristics. As demonstrated in this book, however, mathematical programming deserves a prominent place in the designer's toolkit. Convenient modeling languages and powerful optimization solvers have greatly facilitated the implementation of mathematical programming theory into the practice of commercial network design. These points are equally relevant and applicable in today’s world of wireless network technology and design. But there are new issues as well: many wireless network design decisions, such as routing and facility/element location, must be dealt with in innovative ways that are unique and distinct from wired (fiber optic) networks. The book specifically treats the recent research and the use of modeling languages and network optimization techniques that are playing particularly important and distinctive roles in the wireless domain.
Author: Sheng Huang
Author: Sheng Huang
Author: Guo Li
Author: Krishna Kant
Author: Anna Tzanakaki
Author: Rachid Benlamri
Author: Wenbing Zhao
Author: Woon Seng Gan
Author: Mutamed Khatib
Author: Jeff Kennington
Author: Biswanath Mukherjee