Download or read book Secure Network Coding Dependency of Efficiency on Network Topology written by Stefan Pfennig and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Network Coding Applications written by Christina Fragouli and published by Now Publishers Inc. This book was released on 2008-01-08 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Network Coding Applications looks at how ideas from network coding can have an impact on a number of new applications. It explains what network coding is, explores what its benefits are, and how much it costs to design and operate networks implementing network coding
Download or read book Comparison of Different Secure Network Coding Paradigms Concerning Transmission Efficiency written by Stefan Pfennig and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Efficient Network Coding for Different Network Topologies written by and published by . This book was released on 2014 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Network coding is known to be able to improve a network's throughput and resilience to packet losses. However, in practice high decoding complexity has been a major obstacle that prevents network coding from being widely employed. This thesis considers efficient network coding methods that have low complexity for different types of scenarios. Simple network topologies are first considered. We propose a systematic network coding approach for networks that consist of one or two two-hop lossy paths. It is proved that, compared to the random linear network coding approach, the proposed scheme requires much less computation in encoding and decoding and also achieves a higher end-to-end rate. It is demonstrated that a judicious use of uncoded packets in these networks may provide considerable gain over random coding. For networks with complex or changing topologies, we investigate the generation-based strategy to design network codes, in which source packets are grouped into subsets called generations and coding is only performed among packets belonging to the same generation. We design generation-based network codes for two different decoders that may be used in different scenarios to meet specific performance/complexity constraints. The first approach, which is generation-by-generation decoding, decodes within generations and therefore its complexity can be made linear by properly choosing the generation size. We analyze the decoding process and propose 1) a method to estimate the optimal amount of overlap among generations, which is a key parameter of generation-based network codes and 2) a new code based on unequal-size generations. The proposed code is shown to outperform existing codes in terms of both computational cost and reception overhead. The second approach considers overhead-optimized decoding, which decodes generations jointly and has lower overhead than the generation-by-generation decoder but requires more computation. We provide an overhead-optimized decoder design with low computational cost and then design codes that are sparser than existing codes. The proposed code is shown to have lower overhead and decoding cost.
Download or read book Communications and Multimedia Security written by Bart De Decker and published by Springer. This book was released on 2012-09-05 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 13th IFIP TC 6/TC 11 International Conference on Communications and Multimedia Security, CMS 2012, held in Canterbury, UK, in September 2012. The 6 revised full papers presented together with 8 short papers, 8 extended abstracts describing the posters that were discussed at the conference, and 2 keynote talks were carefully reviewed and selected from 43 submissions. The papers are organized in topical sections on image and handwriting analysis, authentication and performance, biometrics, forensics and watermarking, and communications security.
Download or read book Network Coding for Network Tomography written by Pegah Sattari and published by . This book was released on 2012 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Network tomography aims at inferring internal network characteristics, such as topology and/or link-level characteristics, such as loss rate or delay, based on measurements at the edge of the network. There is a significant body of work on this problem using multicast and/or unicast end-to-end probes. Independently, recent advances in network coding have shown that there are several advantages from allowing intermediate nodes to process and combine, in addition to just forward, incoming packets. In this dissertation, we revisit the problem of network tomography with network coding. We show that network coding offers several benefits in terms of complexity, accuracy, and bandwidth savings. Our key intuition is that network coding at intermediate nodes introduces topology-dependent correlation in the content of coded packets, which can then be exploited for inferring the coding points. This thesis makes three contributions. First, we revisit multiple-source loss tomography in tree topologies with multicast and network coding capabilities, and we provide, for the first time, a low-complexity Maximum Likelihood Estimator (MLE) for the link loss rates. In addition to the MLE, we also apply and evaluate message-passing algorithms for link loss estimation, both in trees and in general topologies. Second, we study the topology inference problem in multiple-source multiple-receiver (M-by-N) networks. We build on prior work, which infers a general M-by-N topology by first inferring several 2-by-2 subnetwork components, and then merging them to obtain the M-by-N topology. We show that, with simple network coding operations at intermediate nodes, it is possible to perfectly identify every 2-by-2 component, which was not possible previously using only multicast or unicast probes. Furthermore, we propose a new algorithm for merging all 2-by-2 components to obtain the M-by-N topology. We cast the problem as multiple hypotheses testing (in particular, generalized binary search), and we design a greedy algorithm that adaptively selects which 2-by-2 components to measure so as to minimize the number of measurements needed to infer the M-by-N topology, and we analyze its performance. In the last part of the thesis, we revisit the traceback problem, which arises in the context of denial-of-service attacks, where multiple attack sources flood a victim destination by sending a large number of packets. The goal of traceback is to identify the paths traversed by these malicious packets all the way back to the attack sources, by allowing intermediate nodes to mark a dedicated field on headers of packets passing through them with the node ID. We incorporate, for the first time, network coding in two different types of traceback schemes: probabilistic packet marking schemes and algebraic traceback. In probabilistic packet marking, routers probabilistically mark packets with a function of their router ID. We demonstrate the benefit of network coding, by essentially reducing the traceback problem to a coupon collector's problem. In contrast, algebraic traceback encodes the IDs of routers on a single path as coefficients in a polynomial of a single variable. We extend that idea to encode multiple paths into a multivariate polynomial and we establish a one-to-one mapping between multi-path algebraic traceback and a particular network coding problem.
Download or read book Information and Communications Security written by Sihan Qing and published by Springer. This book was released on 2018-04-17 with total page 683 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 19th International Conference on Information and Communications Security, ICICS 2017, held in Beijing, China, in December 2017. The 43 revised full papers and 14 short papers presented were carefully selected from 188 submissions. The papers cover topics such as Formal Analysis and Randomness Test; Signature Scheme and Key Management; Algorithms; Applied Cryptography; Attacks and Attacks Defense; Wireless Sensor Network Security; Security Applications; Malicious Code Defense and Mobile Security; IoT Security; Healthcare and Industrial Control System Security; Privacy Protection; Engineering Issues of Crypto; Cloud and E-commerce Security; Security Protocols; Network Security.
Download or read book An Interdisciplinary Approach to Modern Network Security written by Sabyasachi Pramanik and published by CRC Press. This book was released on 2022-05-02 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Interdisciplinary Approach to Modern Network Security presents the latest methodologies and trends in detecting and preventing network threats. Investigating the potential of current and emerging security technologies, this publication is an all-inclusive reference source for academicians, researchers, students, professionals, practitioners, network analysts and technology specialists interested in the simulation and application of computer network protection. It presents theoretical frameworks and the latest research findings in network security technologies, while analyzing malicious threats which can compromise network integrity. It discusses the security and optimization of computer networks for use in a variety of disciplines and fields. Touching on such matters as mobile and VPN security, IP spoofing and intrusion detection, this edited collection emboldens the efforts of researchers, academics and network administrators working in both the public and private sectors. This edited compilation includes chapters covering topics such as attacks and countermeasures, mobile wireless networking, intrusion detection systems, next-generation firewalls, web security and much more. Information and communication systems are an essential component of our society, forcing us to become dependent on these infrastructures. At the same time, these systems are undergoing a convergence and interconnection process that has its benefits, but also raises specific threats to user interests. Citizens and organizations must feel safe when using cyberspace facilities in order to benefit from its advantages. This book is interdisciplinary in the sense that it covers a wide range of topics like network security threats, attacks, tools and procedures to mitigate the effects of malware and common network attacks, network security architecture and deep learning methods of intrusion detection.
Download or read book Network and Index Coding with Application to Robust and Secure Communications written by Salim Y. El Rouayheb and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its introduction in the year 2000 by Ahlswede et al., the network coding paradigm has revolutionized the way we understand information flows in networks. Traditionally, information transmitted in a communication network was treated as a commodity in a transportation network, much like cars on highways or fluids in pipes. This approach, however, fails to capture the very nature of information, which in contrast to material goods, can be coded and decoded. The network coding techniques take full advantage of the inherent properties of information, and allow the nodes in a network, not only to store and forward, but also to "mix", i.e., encode, their received data. This approach was shown to result in a substantial throughput gain over the traditional routing and tree packing techniques. In this dissertation, we study applications of network coding for guarantying reliable and secure information transmission in networks with compromised edges. First, we investigate the construction of robust network codes for achieving network resilience against link failures. We focus on the practical important case of unicast networks with non-uniform edge capacities where a single link can fail at a time. We demonstrate that these networks exhibit unique structural properties when they are minimal, i.e., when they do not contain redundant edges. Based on this structure, we prove that robust linear network codes exist for these networks over GF(2), and devise an efficient algorithm to construct them. Second, we consider the problem of securing a multicast network against an eavesdropper that can intercept the packets on a limited number of network links. We recast this problem as a network generalization of the classical wiretap channel of Type II introduced by Ozarow and Wyner in 1984. In particular, we demonstrate that perfect secrecy can be achieved by using the Ozarow-Wyner scheme of coset coding at the source, on top of the implemented network code. Consequently, we transparently recover important results available in the literature on secure network coding. We also derive new bounds on the required secure code alphabet size and an algorithm for code construction. In the last part of this dissertation, we study the connection between index coding, network coding, and matroid linear representation. We devise a reduction from the index coding problem to the network coding problem, implying that in the linear case these two problems are equivalent. We also present a second reduction from the matroid linear representability problem to index coding, and therefore, to network coding. The latter reduction establishes a strong connection between matroid theory and network coding theory. These two reductions are then used to construct special instances of the index coding problem where vector linear codes outperform scalar linear ones, and where non-linear encoding is needed to achieve the optimal number of transmission. Thereby, we provide a counterexample to a related conjecture in the literature and demonstrate the benefits of vector linear codes.
Download or read book Network Coding Performance Evaluation and an Application to Underwater Networks written by Xiake Ding and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Network coding is a promising technology that many researchers have advocated due to its potentially significant benefits to improve the efficiency of data transmission. In this thesis, we use simulations to evaluate the performance of different network topologies using network coding. By comparing the results with networks without network coding, we confirm that network coding can improve the network throughput. It also has a potential to decrease the end to end delay and improve the reliability. However, there are tradeoff (between delay and reliability) when network coding is used, and some limitations which we summarize. Finally, we have also implemented network coding to a three-dimensional underwater network by using parameters that truly reflect the underwater channel. Our performance evaluations show a better throughput and end-to-end delay but not the PDR (Packet Delivery Rate) in the underwater topology we used.
Download or read book Accurate and Efficient Network Monitoring on Mesh Topologies Via Network Coding written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Accurate and efficient measurement of network-internal characteristics is critical for management and maintenance of large-scale networks. In this thesis, we propose a linear algebraic network tomography (LANT) framework for active inference of link loss rates on mesh topologies via network coding. Probe packets are transmitted from the sources to the destinations along a set of paths. Intermediate nodes linearly combine the received probes and transmit the coded probes using pre-determined coding coefficients. Although a smaller probe size can reduce the bandwidth usage of the network, the inference framework is not valid if the probe size falls below a certain threshold. To this end, we establish a tight lower bound on probe size which is necessary for establishing the mappings between the contents of the received probes and the losses on the different sets of paths. Then, we develop algorithms to find the coding coefficients such that the lower bound on probe size is achieved. Furthermore, we propose a linear algebraic approach to developing consistent estimators of link loss rates, which converge to the actual loss rates as the number of probes increases. We show that using the LANT framework, the identifiability of a link, which only depends on the network topology, is a necessary and sufficient condition for the consistent estimation of its loss rate. Simulation results show that the LANT framework achieves better estimation accuracy than the belief propagation (BP) algorithm for large number of probe packets.
Download or read book Network Coding written by Tracey Ho and published by Cambridge University Press. This book was released on 2008-04-14 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Network coding promises to significantly impact the way communications networks are designed, operated, and understood. The first book to present a unified and intuitive overview of the theory, applications, challenges, and future directions of this emerging field, this is a must-have resource for those working in wireline or wireless networking. *Uses an engineering approach - explains the ideas and practical techniques *Covers mathematical underpinnings, practical algorithms, code selection, security, and network management *Discusses key topics of inter-session (non-multicast) network coding, lossy networks, lossless networks, and subgraph-selection algorithms Starting with basic concepts, models, and theory, then covering a core subset of results with full proofs, Ho and Lun provide an authoritative introduction to network coding that supplies both the background to support research and the practical considerations for designing coded networks. This is an essential resource for graduate students and researchers in electronic and computer engineering and for practitioners in the communications industry.
Download or read book Network Coding Theory written by Raymond W. Yeung and published by Now Publishers Inc. This book was released on 2006 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a tutorial on the basics of network coding theory. Divided into two parts, this book presents a unified framework for understanding the basic notions and fundamental results in network coding. It is aimed at students, researchers and practitioners working in networking research.
Download or read book Springer Handbook of Optical Networks written by Biswanath Mukherjee and published by Springer Nature. This book was released on 2020-10-15 with total page 1169 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook is an authoritative, comprehensive reference on optical networks, the backbone of today’s communication and information society. The book reviews the many underlying technologies that enable the global optical communications infrastructure, but also explains current research trends targeted towards continued capacity scaling and enhanced networking flexibility in support of an unabated traffic growth fueled by ever-emerging new applications. The book is divided into four parts: Optical Subsystems for Transmission and Switching, Core Networks, Datacenter and Super-Computer Networking, and Optical Access and Wireless Networks. Each chapter is written by world-renown experts that represent academia, industry, and international government and regulatory agencies. Every chapter provides a complete picture of its field, from entry-level information to a snapshot of the respective state-of-the-art technologies to emerging research trends, providing something useful for the novice who wants to get familiar with the field to the expert who wants to get a concise view of future trends.
Download or read book Proceedings of Fourth International Conference on Computing Communications and Cyber Security written by Sudeep Tanwar and published by Springer Nature. This book was released on 2023-07-01 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book features selected research papers presented at the Fourth International Conference on Computing, Communications, and Cyber-Security (IC4S 2022), organized in Ghaziabad India, during October 21–22, 2022. The conference was hosted at KEC Ghaziabad in collaboration with WSG Poland, SFU Russia, & CSRL India. It includes innovative work from researchers, leading innovators, and professionals in the area of communication and network technologies, advanced computing technologies, data analytics and intelligent learning, the latest electrical and electronics trends, and security and privacy issues.
Download or read book Network Aware Security for Group Communications written by Yan Sun and published by Springer Science & Business Media. This book was released on 2007-10-17 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims to fill a growing need in the research community for a reference that describes the state-of-the-art in securing group communications. It focuses on tailoring the security solution to the underlying network architecture (such as the wireless cellular network or the ad hoc/sensor network), or to the application using the security methods (such as multimedia multicasts).
Download or read book Handbook on Theoretical and Algorithmic Aspects of Sensor Ad Hoc Wireless and Peer to Peer Networks written by Jie Wu and published by CRC Press. This book was released on 2005-08-08 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt: The availability of cheaper, faster, and more reliable electronic components has stimulated important advances in computing and communication technologies. Theoretical and algorithmic approaches that address key issues in sensor networks, ad hoc wireless networks, and peer-to-peer networks play a central role in the development of emerging network
