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| Author | : Martin Schmidhammer |
| Publisher | : utzverlag GmbH |
| Total Pages | : 168 |
| Release | : 2023-07-25 |
| Genre | : Computers |
| ISBN | : 383165008X |
Download Ubiquitous Radio Sensing Book in PDF, ePub and Kindle
Many applications in the emerging smart environments, such as smart cities and intelligent transportation, require an accurate situational awareness, i.e., information about presence and location of all users in the environment. A reliable situational awareness is based on robust communications and sensing techniques, as well as large-scale deployment. Therefore, an integration of sensing functionality is envisioned as a native capability of next generation wireless networks. This work provides a novel radio sensing approach for the localization of non-cooperative users, referred to as multipath-enhanced device-free localization (MDFL). For localization, MDFL exploits user-induced variations in the received power of static signal components, i.e., line-of-sight and multipath components. Due to its low computational complexity, the proposed MDFL approach represents a suitable technique for the emerging perceptive wireless networks and can help to enable ubiquitous radio sensing.
| Author | : Kiran Raj Joshi |
| Publisher | : |
| Total Pages | : |
| Release | : 2016 |
| Genre | : |
| ISBN | : |
Download Sensing Using Ubiquitous Wireless Communication Infrastructure Book in PDF, ePub and Kindle
An estimated 12 billion connected devices exist today and this number is expected to grow to 30 billion by 2020. These connected devices will be used to control everyday objects like thermostat, light bulb, or even our coffee machines. Sensors and network connectivity are two very important enablers for these devices. Most of these devices will be connected via ubiquitous wireless networks like WiFi, Bluetooth, and ZigBee. Despite their widespread deployment, these wireless networks so far have been used solely for the purpose of transferring digital data between radios. In this thesis, we will describe how we can overload functionalities to these ubiquitous wireless networks by adding novel sensing modalities into them. We first describe the design and implementation of a localization system that can pinpoint radios to sub-meter accuracy in an indoor environment. This system provides localization by simply analyzing the wireless signal that is used for communication. Such a localization system can help network managers to identify and locate unauthorized interferers. At the same time, such a localization technique can also enable navigation of large indoor spaces like airports and malls using smartphones. Next, we describe a technique that allows a wireless Access Point (AP) to detect and analyze reflections of wireless signal from its own transmission. In particular, we demonstrate how it enables a WiFi AP to trace human motion by simply listening to and analyzing reflections from its own transmission. But this technique also has many more applications beyond motion tracing. As an example, we describe design and implementation of a system which allows us to passively read data from Internet of Things (IoT) sensors using ambient WiFi signals. Such a system can prolong life of battery operated sensors or even pave path for RF powered sensors in the future.
| Author | : Chenshu Wu |
| Publisher | : Springer |
| Total Pages | : 220 |
| Release | : 2018-08-22 |
| Genre | : Computers |
| ISBN | : 9811303568 |
Download Wireless Indoor Localization Book in PDF, ePub and Kindle
This book provides a comprehensive and in-depth understanding of wireless indoor localization for ubiquitous applications. The past decade has witnessed a flourishing of WiFi-based indoor localization, which has become one of the most popular localization solutions and has attracted considerable attention from both the academic and industrial communities. Specifically focusing on WiFi fingerprint based localization via crowdsourcing, the book follows a top-down approach and explores the three most important aspects of wireless indoor localization: deployment, maintenance, and service accuracy. After extensively reviewing the state-of-the-art literature, it highlights the latest advances in crowdsourcing-enabled WiFi localization. It elaborated the ideas, methods and systems for implementing the crowdsourcing approach for fingerprint-based localization. By tackling the problems such as: deployment costs of fingerprint database construction, maintenance overhead of fingerprint database updating, floor plan generation, and location errors, the book offers a valuable reference guide for technicians and practitioners in the field of location-based services. As the first of its kind, introducing readers to WiFi-based localization from a crowdsourcing perspective, it will greatly benefit and appeal to scientists and researchers in mobile and ubiquitous computing and related areas.
| Author | : James J. (Jong Hyuk) Park |
| Publisher | : Springer |
| Total Pages | : 716 |
| Release | : 2015-03-04 |
| Genre | : Technology & Engineering |
| ISBN | : 9401796181 |
Download Ubiquitous Computing Application and Wireless Sensor Book in PDF, ePub and Kindle
IT changes everyday’s life, especially in education and medicine. The goal of ITME 2014 is to further explore the theoretical and practical issues of Ubiquitous Computing Application and Wireless Sensor Network. It also aims to foster new ideas and collaboration between researchers and practitioners. The organizing committee is soliciting unpublished papers for the main conference and its special tracks.
| Author | : Anthony LaMarca |
| Publisher | : Morgan & Claypool Publishers |
| Total Pages | : 134 |
| Release | : 2008-07-08 |
| Genre | : Technology & Engineering |
| ISBN | : 1598295829 |
Download Location Systems Book in PDF, ePub and Kindle
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
| Author | : Yan Zhang |
| Publisher | : CRC Press |
| Total Pages | : 646 |
| Release | : 2009-11-04 |
| Genre | : Business & Economics |
| ISBN | : 9781420077780 |
Download RFID and Sensor Networks Book in PDF, ePub and Kindle
The escalating demand for ubiquitous computing along with the complementary and flexible natures of Radio Frequency Identification (RFID) and Wireless Sensor Networks (WSNs) have sparked an increase in the integration of these two dynamic technologies. Although a variety of applications can be observed under development and in practical use, there
| Author | : Chandra Karmakar, Nemai |
| Publisher | : IGI Global |
| Total Pages | : 344 |
| Release | : 2012-05-31 |
| Genre | : Computers |
| ISBN | : 1466616172 |
Download Chipless and Conventional Radio Frequency Identification: Systems for Ubiquitous Tagging Book in PDF, ePub and Kindle
Radio Frequency Identification (RFID) is a wireless tracking and data capturing technique for automatic identification, tracking, security surveillance, logistics, and supply chain management. RFID tags, which have been successfully employed in many industries including retail and healthcare, have provided a multitude of benefits but also currently remain very costly. Chipless and Conventional Radio Frequency Identification: Systems for Ubiquitous Tagging explores the use of conventional RFID technology as well as chipless RFID technology, which provides a cheaper method of implementation, opening many doors for a variety of applications and industries. This practical reference, designed for researchers and practitioners, investigates the growing field of RFID and its promising future.
| Author | : Paul Havinga |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 278 |
| Release | : 2006-10-23 |
| Genre | : Computers |
| ISBN | : 3540478426 |
Download Smart Sensing and Context Book in PDF, ePub and Kindle
This book constitutes the refereed proceedings of the First European Conference on Smart Sensing and Context, EuroSSC 2006, held in Enschede, Netherlands in October 2006. The 15 revised full papers and 14 revised short papers presented were carefully reviewed and selected from over 50 submissions.
| Author | : Danko Antolovic |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 195 |
| Release | : 2010-01-05 |
| Genre | : Technology & Engineering |
| ISBN | : 1441916326 |
Download Radiolocation in Ubiquitous Wireless Communication Book in PDF, ePub and Kindle
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.
| Author | : Neto, Francisco Milton Mendes |
| Publisher | : IGI Global |
| Total Pages | : 366 |
| Release | : 2010-04-30 |
| Genre | : Computers |
| ISBN | : 1615208445 |
Download Designing Solutions-Based Ubiquitous and Pervasive Computing: New Issues and Trends Book in PDF, ePub and Kindle
"This book provides a general overview about research on ubiquitous and pervasive computing and its applications, discussing the recent progress in this area and pointing out to scholars what they should do (best practices) and should not do (bad practices)"--Provided by publisher.
