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Modeling and Optimization Techniques for Ensuring Resilience in Heterogeneous Networked Systems

Modeling and Optimization Techniques for Ensuring Resilience in Heterogeneous Networked Systems
Author: Alexey V. Sorokin
Publisher:
Total Pages: 114
Release: 2012
Genre:
ISBN:
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The third part of the dissertation addresses optimization models for network topology design that enable end-to-end dual-path support in a distributed wireless sensor network. We consider the case of a stationary sensor network with isotropic antennas, where the control variable for topology management is the transmission power on network nodes. For optimization modeling, the network metrics of relevance are coverage, robustness and power utilization.

Mathematics for Action

Mathematics for Action
Author: UNESCO
Publisher: UNESCO Publishing
Total Pages: 70
Release: 2022-03-11
Genre: Political Science
ISBN: 9231005170
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Analysis and Modeling of Resilience for Networked Systems

Analysis and Modeling of Resilience for Networked Systems
Author: Kamlesh Ashok Joshi
Publisher:
Total Pages: 46
Release: 2014
Genre: Computer network architectures
ISBN:
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"A cyber physical system (CPS) has two main subsystems; a physical infrastructure that is responsible for managing and implementing physical tasks, e.g., generation and distribution of a physical commodity, and a cyber infrastructure that is used to support and enhance these physical operations through computing, communication, and control. Imperfect cyber control can lower the efficacy and even reliability of existing physical infrastructures. As such, justifiable reliance on CPSs requires rigorous investigation of the effect of incorporating cyber infrastructure on functional and non-functional aspects of system performance. One non-functional metric of note is resilience, defined as the ability of a system to "bounce back" from a disrupted state to what is considered as an acceptable performance. This dissertation proposes a deterministic and non-deterministic model for resilience of networked CPSs. The model is illustrated through application to a nine-bus power grid. Multiple disruptive events are considered, and associated figures of merit are defined, with the overall objective of representing system-level resilience as a function of component restoration time - assumed to be both deterministic and non-deterministic. The proposed technique can also be used to rank components based on their impact on system resilience. The model is validated through discrete event simulation."--Abstract, page iii.

Network Bioscience Volume II

Network Bioscience Volume II
Author: Marco Pellegrini
Publisher: Frontiers Media SA
Total Pages: 168
Release: 2023-09-01
Genre: Science
ISBN: 2832532039
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Multi-Disciplinary Applications of Fog Computing: Responsiveness in Real-Time

Multi-Disciplinary Applications of Fog Computing: Responsiveness in Real-Time
Author: Acharjya, Debi Prasanna
Publisher: IGI Global
Total Pages: 300
Release: 2023-08-03
Genre: Computers
ISBN: 1668444682
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Recently, several fog computing applications have been developed like IoT-based healthcare, 5G, blockchains, autonomous driving, and mobile wireless applications. They also address challenges such as data management, scalability, regulations, interoperability, device network human interfaces, security, and privacy. Further study on these applications is required to ensure this technology is utilized appropriately. Multi-Disciplinary Applications of Fog Computing: Responsiveness in Real-Time focuses on fog computing problems and solutions for various applications and covers the new approaches, architecture, and theoretical foundations in the fog paradigm of storage, communication, and computing. The book explores recent trends and challenges that lead to a potential course for the ideas, practices, norms, and strategies related to fog computing. Covering key topics such as data privacy, data analytics, and the internet of things, this reference work is ideal for computer scientists, policymakers, researchers, scholars, practitioners, instructors, and students.

Cyber Resilience of Systems and Networks

Cyber Resilience of Systems and Networks
Author: Alexander Kott
Publisher: Springer
Total Pages: 475
Release: 2018-05-30
Genre: Technology & Engineering
ISBN: 3319774921
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This book introduces fundamental concepts of cyber resilience, drawing expertise from academia, industry, and government. Resilience is defined as the ability to recover from or easily adjust to shocks and stresses. Unlike the concept of security - which is often and incorrectly conflated with resilience -- resilience refers to the system's ability to recover or regenerate its performance after an unexpected impact produces a degradation in its performance. A clear understanding of distinction between security, risk and resilience is important for developing appropriate management of cyber threats. The book presents insightful discussion of the most current technical issues in cyber resilience, along with relevant methods and procedures. Practical aspects of current cyber resilience practices and techniques are described as they are now, and as they are likely to remain in the near term. The bulk of the material is presented in the book in a way that is easily accessible to non-specialists. Logical, consistent, and continuous discourse covering all key topics relevant to the field will be of use as teaching material as well as source of emerging scholarship in the field. A typical chapter provides introductory, tutorial-like material, detailed examples, in-depth elaboration of a selected technical approach, and a concise summary of key ideas.

Security and Resilience of Cyber Physical Systems

Security and Resilience of Cyber Physical Systems
Author: Krishan Kumar Goyal
Publisher: Chapman & Hall/CRC
Total Pages: 0
Release: 2022-08
Genre: Computers
ISBN: 9781003185543
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"In this era of 5G digital communication, the implementation of industry 4.0 is the need of the hour. The main aim of this industrial revolution is to completely automate the industry for better productivity, correct decision making and increased efficiency. All the concepts of industry 4.0 can only be implemented with the help of Cyber Physical System aka CPS. This is a smart system in which complete mechanism is monitored and controlled by computer-based algorithms. Confidentiality, Integrity and Availability are the three major concern for providing the add on security to any organization or a system. It has become a biggest challenge among the security professionals to secure these cyber physical systems. Hackers and bad guys are planning various kinds of attacks on daily basis on these systems. This book addresses the various security and privacy issues involved in the cyber physical system. There is need to explore the interdisciplinary analysis to ensure the resilience of these systems including different types of cyber threats to these systems. The book highlights the importance of security in preventing, detecting, characterizing and mitigating different types of cyber threats on CPS. The book offers a simple to understand various organized chapters related to the CPS and their security for graduate students, faculty, research scholars and industry professionals"--

Visual Media Coding and Transmission

Visual Media Coding and Transmission
Author: Ahmet Kondoz
Publisher: John Wiley & Sons
Total Pages: 588
Release: 2009-04-01
Genre: Technology & Engineering
ISBN: 0470740655
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This book presents the state-of-the-art in visual media coding and transmission Visual Media Coding and Transmission is an output of VISNET II NoE, which is an EC IST-FP6 collaborative research project by twelve esteemed institutions from across Europe in the fields of networked audiovisual systems and home platforms. The authors provide information that will be essential for the future study and development of visual media communications technologies. The book contains details of video coding principles, which lead to advanced video coding developments in the form of Scalable Coding, Distributed Video Coding, Non-Normative Video Coding Tools and Transform Based Multi-View Coding. Having detailed the latest work in Visual Media Coding, networking aspects of Video Communication is detailed. Various Wireless Channel Models are presented to form the basis for both link level quality of service (QoS) and cross network transmission of compressed visual data. Finally, Context-Based Visual Media Content Adaptation is discussed with some examples. Key Features: Contains the latest advances in this important field covered by VISNET II NoE Addresses the latest multimedia signal processing and coding algorithms Covers all important advance video coding techniques, scalable and multiple description coding, distributed video coding and non-normative tools Discusses visual media networking with various wireless channel models QoS methods by way of link adaptation techniques are detailed with examples Presents a visual media content adaptation platform, which is both context aware and digital rights management enabled Contains contributions from highly respected academic and industrial organizations Visual Media Coding and Transmission will benefit researchers and engineers in the wireless communications and signal processing fields. It will also be of interest to graduate and PhD students on media processing, coding and communications courses.

Optimization of Computer Networks

Optimization of Computer Networks
Author: Pablo Pavón Mariño
Publisher: John Wiley & Sons
Total Pages: 399
Release: 2016-05-02
Genre: Technology & Engineering
ISBN: 1119013356
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This book covers the design and optimization of computer networks applying a rigorous optimization methodology, applicable to any network technology. It is organized into two parts. In Part 1 the reader will learn how to model network problems appearing in computer networks as optimization programs, and use optimization theory to give insights on them. Four problem types are addressed systematically – traffic routing, capacity dimensioning, congestion control and topology design. Part 2 targets the design of algorithms that solve network problems like the ones modeled in Part 1. Two main approaches are addressed – gradient-like algorithms inspiring distributed network protocols that dynamically adapt to the network, or cross-layer schemes that coordinate the cooperation among protocols; and those focusing on the design of heuristic algorithms for long term static network design and planning problems. Following a hands-on approach, the reader will have access to a large set of examples in real-life technologies like IP, wireless and optical networks. Implementations of models and algorithms will be available in the open-source Net2Plan tool from which the user will be able to see how the lessons learned take real form in algorithms, and reuse or execute them to obtain numerical solutions. An accompanying link to the author’s own Net2plan software enables readers to produce numerical solutions to a multitude of real-life problems in computer networks (www.net2plan.com).