Download or read book Radiolocation in Ubiquitous Wireless Communication written by Danko Antolovic and published by Springer Science & Business Media. This book was released on 2010-01-05 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thisvolumehasitsbeginningsinalaboratoryproject,developmentofaradiolocator for the Wi-Fi network that was growing by leaps and bounds on the campus of Indiana University at that time. What started as a very focused and practical attempt to improve network management, touched in its lifetime upon broader issues of the use of radio spectrum, design of system architectures for the wireless medium, and image formation outside the limits of geometrical optics. Ihaveintendedthisbookmostlyfortheaudienceofengineersandsystemdesi- ers, in the growing ?eld of radio communication among small, portable, ubiquitous devices that have become hybrid platforms for personal communication and p- sonal computing. It is also a book addressed to network professionals, people to whom radio is largely a black box, a medium that they usually rely upon, but s- dom fully understand. In fact, in the course of my work in the ?eld, I have witnessed, to my dismay, a wide disconnect between the networking world and the radio technology that n- working has come to depend upon so heavily. Perhaps, because digital wireless communication is seen as digital ?rst and wireless second, there is often a m- placed emphasis on its information-processingside, with the methodologycentered around the discrete symbol, and with little intuition of the underlying physics. I had it once suggested to me, in apparent seriousness, to use radio cards for intra-system communication within a radiolocator! Wireless communication is radio, plain and simple.
Download or read book Handbook of Research on Mobility and Computing Evolving Technologies and Ubiquitous Impacts written by Cruz-Cunha, Maria Manuela and published by IGI Global. This book was released on 2011-04-30 with total page 1584 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses the main issues, challenges, opportunities, and trends related to this explosive range of new developments and applications, in constant evolution, and impacting every organization and society as a whole. This two volume handbook supports post-graduate students, teachers, and researchers, as well as IT professionals and managers.
Download or read book 3rd Symposium of Ubiquitous Computing and Ambient Intelligence 2008 written by Juan Manuel Corchado Rodríguez and published by Springer Science & Business Media. This book was released on 2008-09-16 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Symposium on Ubiquitous Computing and Ambient Intelligence (UCAmI) began as a workshop held in 2003 in San Sebastián (Spain) under the Spanish Artificial Intelligence Conference. This event gathered 32 attendees and 18 papers were p- sented. The second edition, already as a Symposium, took place in Granada (Spain) under the first Spanish Computer Science Conference (CEDI). Later, in 2006, a s- ond workshop was celebrated in Ciudad Real and, in 2007; the second Symposium was organized in Zaragoza by the CEDI conference. Now we continue to work on the organization of this event in Salamanca, a beautiful Spanish city. The European Community and the Sixth and Seventh Framework Programs - courage researchers to explore the generic scope of the AmI vision. In fact, some researchers have a crucial role in this vision. Emile Aarts from Philips describes - bient Intelligence as "the integration of technology into our environment, so that p- ple can freely and interactively utilize it". This idea agrees with the proposal of Mark Weiser regarding the Ubiquitous Computing paradigm.
Download or read book Location Systems written by Anthony LaMarca and published by Springer Nature. This book was released on 2022-06-01 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in electronic location technology and the coming of age of mobile computing have opened the door for location-aware applications to permeate all aspects of everyday life. Location is at the core of a large number of high-value applications ranging from the life-and-death context of emergency response to serendipitous social meet-ups. For example, the market for GPS products and services alone is expected to grow to US$200 billion by 2015. Unfortunately, there is no single location technology that is good for every situation and exhibits high accuracy, low cost, and universal coverage. In fact, high accuracy and good coverage seldom coexist, and when they do, it comes at an extreme cost. Instead, the modern localization landscape is a kaleidoscope of location systems based on a multitude of different technologies including satellite, mobile telephony, 802.11, ultrasound, and infrared among others. This lecture introduces researchers and developers to the most popular technologies and systems for location estimation and the challenges and opportunities that accompany their use. For each technology, we discuss the history of its development, the various systems that are based on it, and their trade-offs and their effects on cost and performance. We also describe technology-independent algorithms that are commonly used to smooth streams of location estimates and improve the accuracy of object tracking. Finally, we provide an overview of the wide variety of application domains where location plays a key role, and discuss opportunities and new technologies on the horizon. Table of Contents: Introduction / The Global Positioning System / Infrared and Ultrasonic Systems / Location Esimation with 802.11 / Cellular-Based Systems / Other Approaches / Improving Localization Accuracy / Location-Based Applications and Services / Challenges and Opportunities / References
Download or read book Satellite and Terrestrial Radio Positioning Techniques written by Davide Dardari and published by Academic Press. This book was released on 2011-11-09 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Develop a whole range of location-aware personal devices and services using this all-encompassing reference of classical and state-of-the-art methods, techniques and applications for location and satellite positioning. Publisher's note.
Download or read book Handbook on Array Processing and Sensor Networks written by Simon Haykin and published by John Wiley & Sons. This book was released on 2010-02-12 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt: A handbook on recent advancements and the state of the art in array processing and sensor Networks Handbook on Array Processing and Sensor Networks provides readers with a collection of tutorial articles contributed by world-renowned experts on recent advancements and the state of the art in array processing and sensor networks. Focusing on fundamental principles as well as applications, the handbook provides exhaustive coverage of: wavelets; spatial spectrum estimation; MIMO radio propagation; robustness issues in sensor array processing; wireless communications and sensing in multi-path environments using multi-antenna transceivers; implicit training and array processing for digital communications systems; unitary design of radar waveform diversity sets; acoustic array processing for speech enhancement; acoustic beamforming for hearing aid applications; undetermined blind source separation using acoustic arrays; array processing in astronomy; digital 3D/4D ultrasound imaging technology; self-localization of sensor networks; multi-target tracking and classification in collaborative sensor networks via sequential Monte Carlo; energy-efficient decentralized estimation; sensor data fusion with application to multi-target tracking; distributed algorithms in sensor networks; cooperative communications; distributed source coding; network coding for sensor networks; information-theoretic studies of wireless networks; distributed adaptive learning mechanisms; routing for statistical inference in sensor networks; spectrum estimation in cognitive radios; nonparametric techniques for pedestrian tracking in wireless local area networks; signal processing and networking via the theory of global games; biochemical transport modeling, estimation, and detection in realistic environments; and security and privacy for sensor networks. Handbook on Array Processing and Sensor Networks is the first book of its kind and will appeal to researchers, professors, and graduate students in array processing, sensor networks, advanced signal processing, and networking.
Download or read book WLAN Positioning Systems written by Azadeh Kushki and published by Cambridge University Press. This book was released on 2012-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Describing the relevant detection and estimation theory, this detailed guide provides the background knowledge needed to tackle the design of practical WLAN positioning systems. It sets out key system-level challenges and design considerations in increasing positioning accuracy and reducing computational complexity, and it also examines design trade-offs and experimental results. Radio characteristics in real environments are discussed, as are the theoretical aspects of non-parametric statistical tools appropriate for modeling radio signals, statistical estimation techniques and the model-based stochastic estimators often used for positioning. A historical account of positioning systems in also included, giving graduate students, researchers and practitioners alike the perspective needed to understand the benefits and potential applications of WLAN positioning.
Download or read book Advanced Materials for Electromagnetic Shielding written by Maciej Jaroszewski and published by John Wiley & Sons. This book was released on 2018-11-30 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of the field of materials that shield people and sensitive electronic devices from electromagnetic fields Advanced Materials for Electromagnetic Shielding offers a thorough review of the most recent advances in the processing and characterization of the electromagnetic shielding materials. In this groundbreaking book, the authors—noted experts in the field—discuss the fundamentals of shielding theory as well as the practice of electromagnetic field measuring techniques and systems. They also explore applications of shielding materials used as absorbers of electromagnetic radiation, or as magnetic shields and explore coverage of new advanced materials for EMI shielding in aerospace applications. In addition, the text contains methods of preparation and applicability of metal foams. This comprehensive text examines the influence of technology on the micro-and macrostructure of polymers enabling their use in screening technology, technologies of shielding materials based on textiles, and analyses of its effectiveness in screening. The book also details the method of producing nanowires and their applications in EM shielding. This important resource: Explores the burgeoning market of electromagnetic shielding materials as we create, depend upon, and are exposed to more electronic devices than ever Addresses the most comprehensive issues relating to electromagnetic fields Contains information on the manufacturing, characterization methods, and properties of materials used to protect against them Discusses the important characterization techniques compared with one another, thus allowing scientists to select the best approach to a problem Written for materials scientists, electrical and electronics engineers, physicists, and industrial researchers, Advanced Materials for Electromagnetic Shielding explores all aspects in the area of electromagnetic shielding materials and examines the current state-of-the-art and new challenges in this rapidly growing area.
Download or read book Edge Computing Simplified written by Perry Lea and published by Packt Publishing Ltd. This book was released on 2024-06-28 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: No detailed description available for "Edge Computing Simplified".
Download or read book Special Issue on Reconfigurable Radio Technologies in Support of Ubiquitous Seamless Computing written by Panagiotis Demestichas and published by . This book was released on 2006 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Managing Radio Resources in Dense Wireless Areas written by Haleh Tabrizi and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Smartphone proliferation has created the demand for ubiquitous access to wireless data anywhere and at any time. This demand is particularly perceived in crowded venues such as concert halls, conference halls and sports stadiums, where a large number of mobile devices contend for limited spectrum. This dissertation focuses on highly dense wireless areas, where all users must communicate simultaneously with a common destination node, such as a cellular base-station. The research identifies a solution of multiple, small, dynamic user hotspots to better distribute the limited radio resources. This is achieved by taking advantage of reduced pathloss, communicating over locally available spectrum, and reuse of spectrum over spatially separated links. This dissertation presents two different methods of selecting hotspots, routing data and allocating resources in dense wireless areas. The first part of this dissertation focuses on improving network performance by creating a clustered configuration of nodes where the nodes within each cluster can operate over locally available spectrum (white-spaces). A single node within each cluster is designated as the hotspot, and all the other nodes communicate with the destination node through the hotspots. A semi-distributed algorithm, that clusters the nodes and coordinates the hotspots to tether over locally available white-spaces is proposed. In addition to providing simultaneous service to more users than conventional direct communication in cellular networks, simulation results show that the proposed method can increase the average battery life of devices by 30%. The second part of this dissertation aims at improving network performance in dense wireless areas through multiple hops and spatial reuse of spectrum. The proposed method groups nodes based on their location and creates a structured multi-hop configuration in which each group can forward its neighbor's data. Employing the large number of active radio nodes as relays, and exploiting the common direction of communication toward the single destination allows spatially separated groups to reuse limited spectrum resources. Resource allocation and routing among users is formulated as a convex cross-layer optimization problem. Furthermore, exploiting the structure of such problem leads to a semi-distributed optimization algorithm. As such, each node can optimize its resources independently based on local channel information.
Download or read book The Art of Wireless Sensor Networks written by Habib M. Ammari and published by Springer Science & Business Media. This book was released on 2013-12-17 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last one and a half decades, wireless sensor networks have witnessed significant growth and tremendous development in both academia and industry. A large number of researchers, including computer scientists and engineers, have been interested in solving challenging problems that span all the layers of the protocol stack of sensor networking systems. Several venues, such as journals, conferences, and workshops, have been launched to cover innovative research and practice in this promising and rapidly advancing field. Because of these trends, I thought it would be beneficial to provide our sensor networks community with a comprehensive reference on as much of the findings as possible on a variety of topics in wireless sensor networks. As this area of research is in continuous progress, it does not seem to be a reasonable solution to keep delaying the publication of such reference any more. This book relates to the second volume and focuses on the advanced topics and applications of wireless sensor networks. Our rationale is that the second volume has all application-specific and non-conventional sensor networks, emerging techniques and advanced topics that are not as matured as what is covered in the first volume. Thus, the second volume deals with three-dimensional, underground, underwater, body-mounted, and societal networks. Following Donald E. Knuth’s above-quoted elegant strategy to focus on several important fields (The Art of Computer Programming: Fundamental Algorithms, 1997), all the book chapters in this volume include up-to-date research work spanning various topics, such as stochastic modeling, barrier and spatiotemporal coverage, tracking, estimation, counting, coverage and localization in three-dimensional sensor networks, topology control and routing in three-dimensional sensor networks, underground and underwater sensor networks, multimedia and body sensor networks, and social sensing. Most of these major topics can be covered in an advanced course on wireless sensor networks. This book will be an excellent source of information for graduate students majoring in computer science, computer engineering, electrical engineering, or any related discipline. Furthermore, computer scientists, researchers, and practitioners in both academia and industry will find this book useful and interesting.
Download or read book Pervasive Computing written by Judy Kay and published by Springer. This book was released on 2012-06-28 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 10th International Conference on Pervasive Computing, Pervasive 2012, held in Newcastle, UK, in June 2012. The 28 revised papers presented were carefully reviewed and selected from 138 submissions. The contributions are grouped into the following topical sections: activity capturing; urban mobility and computing; home and energy; HCI; development tools and devices; indoor location and positioning; social computing and games; privacy; public displays and services.
Download or read book Introduction to Wireless Localization written by Eddie C. L. Chan and published by John Wiley & Sons. This book was released on 2012-05-11 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of the entire landscape of both outdoor and indoor wireless positioning, and guides the reader step by step in the implementation of wireless positioning applications on the iPhone. Explanations of fundamental positioning techniques are given throughout the text, along with many programming examples, providing the reader with an independent, practical, and enjoyable learning of the material while gaining a real feel for the subject. Provides an accessible introduction to positioning technologies such as Global Positioning System and Wi-Fi positioning Presents hands-on skills to iOS 5.0 programming for location-aware applications Gives a thorough grounding in signal propagation, line-of-sight and interference effects for accurate positioning Covers the location-aware video streaming and conferencing with practical iPhone application examples Accompanied by a website containing programming code described in the text and lecture presentation slides for instructors This book is primarily intended for anyone who wants to study wireless localization. It is an ideal textbook for graduate students who are first learning localization techniques, as well as advanced undergraduates in computer science interested in translating localization concepts into real code. Professionals, engineers and researchers working in location-aware services and related techniques using mobile positioning and AI technologies will find this book to be a helpful reference. Companion website for the book: www.wiley.com/go/chan/wireless
Download or read book Computer Aided Systems Theory EUROCAST 2011 written by Roberto Moreno-Díaz and published by Springer Science & Business Media. This book was released on 2012-01-26 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two-volume proceedings, LNCS 6927 and LNCS 6928, constitute the papers presented at the 13th International Conference on Computer Aided Systems Theory, EUROCAST 2011, held in February 2011 in Las Palmas de Gran Canaria, Spain. The total of 160 papers presented were carefully reviewed and selected for inclusion in the books. The contributions are organized in topical sections on concepts and formal tools; software applications; computation and simulation in modelling biological systems; intelligent information processing; heurist problem solving; computer aided systems optimization; model-based system design, simulation, and verification; computer vision and image processing; modelling and control of mechatronic systems; biomimetic software systems; computer-based methods for clinical and academic medicine; modeling and design of complex digital systems; mobile and autonomous transportation systems; traffic behaviour, modelling and optimization; mobile computing platforms and technologies; and engineering systems applications.
Download or read book Britain written by and published by . This book was released on 1943 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Content Networking in the Mobile Internet written by Sudhir Dixit and published by John Wiley & Sons. This book was released on 2004-11-11 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents a combined view of content and wireless technologiesuseful to both the industry and academia Offers a good mix of theory and practice to understand theinternal working of the wireless/mobile content deliverynetworks Bridges the gap between the wireless and content researchcommunities Focuses not only on the latest technology enablers for speediercontent delivery in the mobile Internet, but also on how tointegrate them to provide workable end-to-end solutions
