Download or read book Efficient Data Dissemination Protocols in Wireless Pervasive Networks written by Elena Fasolo and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reliable Data Dissemination in Dense Wireless Networks written by Weiyao Xiao and published by . This book was released on 2010 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Commercial providers are increasingly permitting third-parties to develop and implement their own applications on wireless devices, ranging from sensors to 3G cellular phones. Accordingly, reliable data dissemination is quickly emerging as a key enabling technology, providing fundamental services such as over-the-air programming and security patching. The commonly high density of wireless devices hampers efficient accomplishment of this task, however. In this dissertation, we address the scalability of reliable data dissemination in two ways: (i) we develop and analyze policies harnessing the multi-channel transceiving capabilities of single radio wireless devices, and (ii) we rigorously address the problem of quantifying forward error correction (FEC) redundancy to eliminate control traffic (e.g., Acknowledgments) with high probability. We first analyze the performance limits of data dissemination in multi-channel, single radio networks. For arbitrary topology networks, we model this problem as a stochastic shortest path optimization and provide approaches to compute the optimal control policy achieving minimum average delay, in a finite number of steps. Due to the prohibitive computational complexity of the optimal solution, we develop asymptotically optimal polices for practical networks with high node density. Our analysis and simulations reveal that a single radio in each receiver suffices to achieve performance gain directly proportional to the number of channels available. Next, pairing rateless coding with extreme value theory, we quantify FEC redundancy by analyzing the cumulative distribution function (CDF) of the data dissemination completion time. We precisely characterize this CDF and demonstrate the existence of a phase transition associated with it. Further, we analyze heterogeneous packet loss models, by establishing a connection to the multi-set coupon collector problem. Finally, we address the problem of performing online FEC estimation under unknown channel statistics. Leveraging properties of extreme value estimators, we design novel techniques that extrapolate over limited information. We demonstrate the benefit of accurately quantifying FEC redundancy through real experiments, which reveal drastic reduction in control traffic, energy consumption and overall delay. In summary, this work contributes to the design and analysis of rapid and energy-efficient data dissemination protocols for large scale wireless networks, thereby facilitating their deployment.
Download or read book Efficient Data Dissemination in Wireless Ad Hoc Networks written by Louisa Harutyunyan and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimal Data Dissemination in Stochastic and Arbitrary Wireless Networks written by Hongxing Li and published by . This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Optimal Data Dissemination in Stochastic and Arbitrary Wireless Networks" by Hongxing, Li, 李宏兴, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Data dissemination among wireless devices is an essential application in wireless networks. In contrast to its wired counterparts which have more stable network settings, wireless networks are subject to network dynamics, such as variable network topology, channel availability and capacity, which are due to user mobility, signal collision, random channel fading and scattering, etc. Network dynamics complicate the protocol design for optimal data disseminations. Although the topic has been intensively discussed for many years, existing solutions are still not completely satisfactory, especially for stochastic or arbitrary networks. In this thesis, we address optimal data dissemination in both stochastic and arbitrary wireless networks, using techniques of Lyapunov optimization, graph theory, network coding, multi-resolution coding and successive interference cancellation. We first discuss the maximization of time-averaged throughput utility over a long run for unicast and multirate multicast, respectively, in stochastic wireless networks without probing into the future. For multi-session unicast communications, a utility-maximizing cross-layer design, composed of joint end-to-end rate control, routing, and channel allocation, is proposed for cognitive radio networks with stochastic primary user occupations. Then, we study optimal multirate multicast to receivers with non-uniform receiving rates, also making dynamic cross-layer decisions, in a general wireless network with both a timevarying topology and random channel capacities, by utilizing random linear network coding and multi-resolution coding. In both solutions, we assume users are selfish and prefer only to relay data for others with strong social ties. Such social selfishness of users is a new constraint in network protocol design. Its impact on efficient data dissemination in wireless networks is largely unstudied, especially under stochastic settings. Lyapunov optimization is applied in our protocol design achieving close-to-optimal utilities. Next, we turn to latency-minimizing data aggregation in wireless sensor networks having arbitrary network topologies under the physical interference model. Different from our effort for stochastic networks where we target at time-averaged optimality over a long run, the objective here is to minimize the time-span to accomplish one round of aggregation scheduling for all sensors in an arbitrary topology. This problem is NP-hard, involving both aggregation tree construction and collision-free link scheduling. The current literature mostly considers the protocol interference model, which has been shown to be less practical than the physical interference model in characterizing the interference relations in the real world. A distributed solution under the physical interference model is challenging since cumulative interferences from all concurrently transmitting devices need to be well measured. In this thesis, we present a distributed aggregation protocol with an improved approximation ratio as compared with previous work. We then discuss the tradeoff between aggregation latency and energy consumption for arbitrary topologies when the successive interference cancellation technique is in force. Another distributed algorithm is introduced with asymptotic optimality in both aggregation latency and latency-energy tradeoff. Through theoretical analysis and
Download or read book Effective Data Dissemination Over Multi hop Gigabit Wireless Networks written by and published by . This book was released on 2015 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theory and Practice of Wireless Sensor Networks Cover Sense and Inform written by Habib M. Ammari and published by Springer Nature. This book was released on 2022-10-03 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims at developing a reader’s thorough understanding of the challenges and opportunities of two categories of networks, namely k-covered wireless sensor networks and k-barrier covered wireless sensor networks. It presents a variety of theoretical studies based on percolation theory, convexity theory, and applied computational geometry, as well as the algorithms and protocols that are essential to their design, analysis, and development. Particularly, this book focuses on the cover, sense, and inform (CSI) paradigm with a goal to build a unified framework, where connected k-coverage (or k-barrier coverage), sensor scheduling, and geographic data forwarding, gathering, and delivery are jointly considered. It provides the interested reader with a fine study of the above networks, which can be covered in introductory and advanced courses on wireless sensor networks. This book is useful to senior undergraduate and graduate students in computer science, computer engineering, electrical engineering, information science, information technology, mathematics, and any related discipline. Also, it is of interest to computer scientists, researchers, and practitioners in academia and industry with interest in these two networks from their deployment until data gathering and delivery.
Download or read book Efficient Data Communication Protocols for Wireless Networks written by Engin Zeydan and published by . This book was released on 2010 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wireless Sensor Networks and Energy Efficiency Protocols Routing and Management written by Zaman, Noor and published by IGI Global. This book was released on 2012-01-31 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book focuses on wireless sensor networks and their operation, covering topics including routing, energy efficiency and management"--
Download or read book Data Management in Pervasive Systems written by Francesco Colace and published by Springer. This book was released on 2015-10-17 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contributes to illustrating the methodological and technological issues of data management in Pervasive Systems by using the DataBenc project as the running case study for a variety of research contributions: sensor data management, user-originated data operation and reasoning, multimedia data management, data analytics and reasoning for event detection and decision making, context modelling and control, automatic data and service tailoring for personalization and recommendation. The book is organized into the following main parts: i) multimedia information management; ii) sensor data streams and storage; iii) social networks as information sources; iv) context awareness and personalization. The case study is used throughout the book as a reference example.
Download or read book Wireless Information Highways written by Dimitrios Katsaros and published by IGI Global. This book was released on 2005-01-01 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of wireless networks and mobile computing is an area of very active investigation. Though, the majority of the research and development, focuses on devising efficient communication protocols so as to provide a stable communication channel to allow the information flow freely among the mobile clients. Recently, the investigation turned its interest also to the problem of providing advanced data management functionalities to the clients. In order to support data-intensive applications over the wireless medium, several techniques have been proposed addressing issues like security, quality of service, service discovery, data dissemination, location management, location-based and transactional applications. Although much has been written, especially recently, in this rapidly growing field, no other book treats problems in wireless networks from a computer science perspective, although a number of books that follow the engineering approach exist. Wireless Information Highways provides and excellent introduction and balanced coverage of the most important topics related to the methodologies developed to support data management in asymmetric communication environments. This book is based on a number of self-contained chapters and provides an opportunity for practitioners and researchers to explore the connection between various computer science techniques and develop solutions to problems that arise in the rapidly emerging field of wireless networks.
Download or read book Intelligent Technologies and Techniques for Pervasive Computing written by Kolomvatsos, Kostas and published by IGI Global. This book was released on 2013-05-31 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pervasive computing enables users to interact with information resources in their everyday lives. The development of computational technologies that can exist in ever smaller devices while simultaneously increasing processing power allows such devices to blend seamlessly into tangible environments. Intelligent Technologies and Techniques for Pervasive Computing provides an extensive discussion of such technologies, theories and practices in an attempt to shed light on current trends and issues in the adaption of pervasive systems. Within its pages, students and practitioners of computer science will find both recent developments and practical applicationsan overview of the field and how intelligent techniques can help to improve user experience in the distribution and consumption of pertinent, timely information. This book is part of the Advances in Computational Intelligence and Robotics series collection.
Download or read book Advanced Technologies Embedded and Multimedia for Human centric Computing written by Yueh-Min Huang and published by Springer Science & Business Media. This book was released on 2013-11-13 with total page 1213 pages. Available in PDF, EPUB and Kindle. Book excerpt: The theme of HumanCom and EMC is focused on the various aspects of human-centric computing for advances in computer science and its applications, embedded and multimedia computing and provides an opportunity for academic and industry professionals to discuss the latest issues and progress in the area of human-centric computing. And the theme of EMC (Advanced in Embedded and Multimedia Computing) is focused on the various aspects of embedded system, smart grid, cloud and multimedia computing, and it provides an opportunity for academic, industry professionals to discuss the latest issues and progress in the area of embedded and multimedia computing. Therefore this book will be include the various theories and practical applications in human-centric computing and embedded and multimedia computing.
Download or read book Energy Efficient Distributed Computing Systems written by Albert Y. Zomaya and published by John Wiley & Sons. This book was released on 2012-07-26 with total page 605 pages. Available in PDF, EPUB and Kindle. Book excerpt: The energy consumption issue in distributed computing systems raises various monetary, environmental and system performance concerns. Electricity consumption in the US doubled from 2000 to 2005. From a financial and environmental standpoint, reducing the consumption of electricity is important, yet these reforms must not lead to performance degradation of the computing systems. These contradicting constraints create a suite of complex problems that need to be resolved in order to lead to 'greener' distributed computing systems. This book brings together a group of outstanding researchers that investigate the different facets of green and energy efficient distributed computing. Key features: One of the first books of its kind Features latest research findings on emerging topics by well-known scientists Valuable research for grad students, postdocs, and researchers Research will greatly feed into other technologies and application domains
Download or read book Proceedings of the International Conference on Recent Cognizance in Wireless Communication Image Processing written by Nitin Afzalpulkar and published by Springer. This book was released on 2016-04-28 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises the proceedings of the International Conference on Recent Cognizance in Wireless Communication & Image Processing. It brings together content from academicians, researchers, and industry experts in areas of Wireless Communication and Image Processing. The volume provides a snapshot of current progress in computational creativity and a glimpse of future possibilities. The proceedings include two kinds of paper submissions: (i) regular papers addressing foundation issues, describing original research on creative systems development and modeling; and (ii) position papers describing work-in-progress or research directions for computational creativity. This work will be useful to professionals and researchers working in the core areas of wireless communications and image processing.
Download or read book Green Pervasive and Cloud Computing written by Man Ho Allen Au and published by Springer. This book was released on 2017-05-06 with total page 821 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the 12th International Conference on Green, Pervasive, and Cloud Computing, GPC 2017, held in Cetara, Italy, in May 2017 and the following colocated workshops: First International Workshop on Digital Knowledge Ecosystems 2017; and First Workshop on Cloud Security Modeling, Monitoring and Management, CS3M 2017. The 58 full papers included in this volume were carefully reviewed and selected from 169 initial submissions. They deal with cryptography, security and biometric techniques; advances network services, algorithms and optimization; mobile and pervasive computing; cybersecurity; parallel and distributed computing; ontologies and smart applications; and healthcare support systems.
Download or read book Advanced Intelligent Environments written by Wolfgang Minker and published by Springer Science & Business Media. This book was released on 2009-06-16 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last decade a number of research areas have contributed to the concept of advanced intelligent environments, these include ubiquitous computing, pervasive computing, embedded intelligence, intelligent user interfaces, human factors, intelligent buildings, mobile communications, domestic robots, intelligent sensors, artistic and architectural design and ambient intelligence. Undeniably, multimodal spoken language dialogue interaction is a key factor in ensuring natural interaction and therefore of particular interest for advanced intelligent environments. It will therefore represent one focus of the proposed book. The book will cover all key topics in the field of intelligent environments from a variety of leading researchers. It will bring together several perspectives in research and development in the area.
Download or read book Advances in Grid and Pervasive Computing written by Yeh-Ching Chung and published by Springer. This book was released on 2006-05-01 with total page 683 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the First International Conference on Grid and Pervasive Computing, GPC 2006. The 64 revised full papers were carefully reviewed. The papers are organized in topical sections on grid scheduling, peer-to-peer computing, Web/grid services, high performance computing, ad hoc networks, wireless sensor networks, grid applications, data grid, pervasive applications, semantic Web, semantic grid, grid load balancing, wireless ad hoc/sensor networks, and mobile computing.
