Download or read book Assistance Channel and Networking Models for A GPS Simulators and Extensions written by Grant Huang and published by . This book was released on 2014 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Global Positioning System (GPS) has an established reputation as a robust global technology allowing users to determine their locations using receivers incorporated in various devices including cell phones, PDAs, and watches. While GPS works well in open sky environments, location finding in weak-signal conditions, such as urban canyons and indoors, is challenging and has been the subject of extensive research. Assisted-GPS (A-GPS) is one of the concepts that help receivers acquire weaker signals by exploiting assistance data received from wireless networks, such as orbital parameters, and coarse time and location references. A-GPS is currently standardized technology in cellular communication since it evolved as a natural integration of GPS and wireless communication. Receiver technology developers work on more sensitive algorithms for enabling positioning in weak signal environments and typically rely on signal simulators for testing real-world scenarios. As the terrestrial assistance data channel becomes a foundational link for A-GPS, the statistical modeling of information delivery delays should be addressed for more adequate simulations as channel delays affect receiver operations. In particular, delays contribute to receiver response typically defined as a Time-to-First-Fix (TTFF). The main aspect of the dissertation is to study A-GPS channels by (a) developing a testbed for A-GPS simulation that includes a conventional GPS simulator integrated with an advanced channel model simulator and assistance data delivery over the Internet accessed through wireless links; (b) using the testbed to suggest channel delay measurement methodology; (c) conducting channel measurement campaigns and collecting representative data; and (d) proposing channel models that can be incorporated in A-GPS simulators for generating more realistic assistance communication scenarios for receiver testing. Different from conventional approaches, this dissertation promotes measurements of complete cycle delays including physical propagation and network delays due to data losses. It makes proposed methodology broader and applicable for other communication technologies. A case study of network channel delay modeling is conducted for Power Line Communications (PLC), which is also sensitive to delays in interactive applications (e.g. videoconferencing, remote control systems, online games). PLC emerged as a competitive technology for indoor broadband communications exploiting the existing power line infrastructure for data transmissions. The proposed network channel delay models are essentially based on testbeds for conducting measurement campaigns. The last aspect of the dissertation is the accessibility of testbed platforms for education, training, and resource sharing. Broader access to unique testbeds and experimentation labs in general is an essential component of engineering research, collaboration, and learning. However, high equipment and maintenance costs constrain experimentation infrastructure. Software simulators, based on mathematical models, address this problem to some extent, but interaction with real systems provides a richer and more authentic experience and is often the only available choice. This dissertation presents a recent initiative on designing a remote experimentation platform named eComLab for radio-communication enabling broader access. It addresses two goals: sharing testbeds for research needs and allowing practical educational lab offerings using limited equipment resources.

Download or read book Modeling and Simulation of Computer Networks and Systems written by Faouzi Zarai and published by Morgan Kaufmann. This book was released on 2015-04-21 with total page 965 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modeling and Simulation of Computer Networks and Systems: Methodologies and Applications introduces you to a broad array of modeling and simulation issues related to computer networks and systems. It focuses on the theories, tools, applications and uses of modeling and simulation in order to effectively optimize networks. It describes methodologies for modeling and simulation of new generations of wireless and mobiles networks and cloud and grid computing systems. Drawing upon years of practical experience and using numerous examples and illustrative applications recognized experts in both academia and industry, discuss: - Important and emerging topics in computer networks and systems including but not limited to; modeling, simulation, analysis and security of wireless and mobiles networks especially as they relate to next generation wireless networks - Methodologies, strategies and tools, and strategies needed to build computer networks and systems modeling and simulation from the bottom up - Different network performance metrics including, mobility, congestion, quality of service, security and more... Modeling and Simulation of Computer Networks and Systems is a must have resource for network architects, engineers and researchers who want to gain insight into optimizing network performance through the use of modeling and simulation. - Discusses important and emerging topics in computer networks and Systems including but not limited to; modeling, simulation, analysis and security of wireless and mobiles networks especially as they relate to next generation wireless networks - Provides the necessary methodologies, strategies and tools needed to build computer networks and systems modeling and simulation from the bottom up - Includes comprehensive review and evaluation of simulation tools and methodologies and different network performance metrics including mobility, congestion, quality of service, security and more

Download or read book Data Sources written by and published by . This book was released on 2000 with total page 1878 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wireless Information Networks written by Kaveh Pahlavan and published by John Wiley & Sons. This book was released on 2005-11-07 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: Towards location aware mobile ad hoc sensors A Systems Engineering Approach to Wireless Information Networks The Second Edition of this internationally respected textbook brings readers fully up to date with the myriad of developments in wireless communications. When first published in 1995, wireless communications was synonymous with cellular telephones. Now wireless information networks are the most important technology in all branches of telecommunications. Readers can learn about the latest applications in such areas as ad hoc sensor networks, home networking, and wireless positioning. Wireless Information Networks takes a systems engineering approach: technical topics are presented in the context of how they fit into the ongoing development of new systems and services, as well as the recent developments in national and international spectrum allocations and standards. The authors have organized the myriad of current and emerging wireless technologies into logical categories: * Introduction to Wireless Networks presents an up-to-the-moment discussion of the evolution of the cellular industry from analog cellular technology to 2G, 3G, and 4G, as well as the emergence of WLAN and WPAN as broadband ad hoc networks * Characteristics of Radio Propagation includes new coverage of channel modeling for space-time, MIMO, and UWB communications and wireless geolocation networks * Modem Design offers new descriptions of space-time coding, MIMO antenna systems, UWB communications, and multi-user detection and interference cancellation techniques used in CDMA networks * Network Access and System Aspects incorporates new chapters on UWB systems and RF geolocations, with a thorough revision of wireless access techniques and wireless systems and standards Exercises that focus on real-world problems are provided at the end of each chapter. The mix of assignments, which includes computer projects and questionnaires in addition to traditional problem sets, helps readers focus on key issues and develop the skills they need to solve actual engineering problems. Extensive references are provided for those readers who would like to explore particular topics in greater depth. With its emphasis on knowledge-building to solve problems, this is an excellent graduate-level textbook. Like the previous edition, this latest edition will also be a standard reference for the telecommunications industry.

Download or read book Vehicular Networking written by Marc Emmelmann and published by John Wiley & Sons. This book was released on 2010-03-30 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last 15 years, the interest in vehicular communication has grown, especially in the automotive industry. Due to the envisioned mass market, projects focusing on Car-to-X communication experience high public visibility. This book presents vehicular communication in a broader perspective that includes more than just its application to the automotive industry. It provides, researchers, engineers, decision makers and graduate students in wireless communications with an introduction to vehicular communication focussing on car-to-x and train-based systems. Emphasizes important perspectives of vehicular communication including market area, application areas, and standardization issues as well as selected topics featuring aspects of developing, prototyping, and testing vehicular communication systems. Supports the reader in understanding common characteristics and differences between the various application areas of vehicular communication. Offers both an overview of the application area and an in-depth discussion of key technologies in these areas. Written by a wide range of experts in the field.

Download or read book IEEE PLANS written by and published by . This book was released on 1992 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Models for Vehicular Traffic on Networks written by Mauro Garavello and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quality of Service Control in High Speed Networks written by H. Jonathan Chao and published by John Wiley & Sons. This book was released on 2001-11-29 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Der Datenverkehr in lokalen und globalen Datennetzwerken nimmt ständig zu. Quality of Service zu bieten, ist deshalb eine der vordringlichsten Aufgaben der Kommunikationsindustrie. Eine praxisnahe Einführung in die QoS-Implementierung bietet diese topaktuelle Buch, das auch neue Steuerungstechniken für die nächste Generation der Multimedia-Netze erläutert. Theoretische Forschungsergebnisse und Beispiele aus der ingenieurtechnischen Praxis werden gleichermaßen berücksichtigt.

Download or read book V2V V2I Communications for Improved Road Safety and Efficiency written by Ronald K Jurgen and published by SAE International. This book was released on 2012-08-02 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: Millions of automobile accidents occur worldwide each year. Some of the most serious are rear-end crashes, side crashes within intersections, and crashes that occur when cars change lanes or drift into a lane. The holy grail of traffic safety is to avoid automobile accidents altogether. To that end, major automakers, governments, and universities are working on systems that allow vehicles to communicate with one another as well as the surrounding infrastructure (V2V/V2I for short). These systems show promise for such functions as intersection assist, left-turn assist, do-not-pass warning, advance warning of a vehicle braking ahead, forward-collision warning, and blind-spot/lane-change warning. This compendium explores the challenges in developing these systems and provides the latest developments in V2V/V2I technology. It begins with a series of overview news stories and articles from SAE’s magazines on the progress in this technology. This is followed by a series of technical papers on V2V/V2I dealing with the many technical aspects of design of these systems as well as discussions of such key issues as the need for extreme reliability assurances and traffic congestion overloads on the systems. Some of most interesting discussions in the book include: • Overview of a large-scale test in Germany to address reliability. • Effectiveness of different antennas and receivers that are used in various intersections settings, such as intersections where there are tall buildings or no buildings, and where high transmission power lines are located that can cause signal interference. • Various ways to communicate between vehicles and how messages are relayed to drivers. • Dedicated short range communication protocol for vehicle safety applications, which shows promise for combining and processing large amounts of information. Editor Ronald K. Jurgen prepared this book to be of use to engineers at automakers and electronic component suppliers; software engineers; computer systems analysts and architects; academics and researchers within the electronics, computing, and automotive industries; legislators, managers and other decision-makers in the government highway sector; traffic safety professionals; and insurance and legal practitioners. Mr. Jurgen served on the editorial staff of IEEE Spectrum for 30 years and is the editor of several electronics-related handbooks and several other electronics-related compendiums published by SAE International.

Download or read book IEEE PLANS 92 Position Location and Navigation Symposium Record written by and published by Institute of Electrical & Electronics Engineers(IEEE). This book was released on 1992 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Connectivity and the Mobility Industry written by Andrew Brown and published by SAE International. This book was released on 2011-10-24 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bound to play an ever increasing role in the driver-vehicle relationship, connectivity is becoming a basic consumer requirement when it comes to choosing a vehicle. Moving from the computer into the car, the ability to stay in touch, informed and entertained has reached yet a higher level of technology ubiquity. Featuring 20 SAE technical papers published in 2010 and 2011, Connectivity and the Mobility Industry addresses important aspects of one of the most cutting-edge topics in the industry today. Edited by Dr. Andrew Brown, Jr. 2010 SAE International President and Chief Technologist for Delphi Corporation, this book also includes three original articles on the subject, written by various experts: • What to Expect Beyond 2015 - Fourth Generation Wireless and the Vehicle • The Evolution of the Driving Experience and Associated Technologies • Wireless Charging of Electric Vehicle Converged with Communication Technology Part of the new paradigm of "green, safe and connected," this title is of special interest to those looking for an integrated view of how the driving experience will develop within these boundaries, and what emerging technologies are likely to be successful in the upcoming years. This book is the third in the trilogy from SAE on "Safe, Green and Connected" vehicles in the mobility industry edited by Dr. Andrew Brown, Jr. The other two books in this trilogy are: Green Technologies and the Mobility Industry Active Safety and the Mobility Industry Buy a Combination of Books and Save!> This trilogy can be purchased in a combination of two books as follows: Green Technologies and Active Safety in the Mobility Industry Green Technologies and Connectivity in the Mobility Industry Active Safety and Connectivity in the Mobility Industry Buy the Entire 3 Book Set and Save the Most! Green, Safe & Connected: The Future of Mobility

Download or read book Performance Modelling and Analysis of Heterogeneous Networks written by Demetres D. Kouvatsos and published by CRC Press. This book was released on 2022-09-01 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the recent years, a considerable amount of effort has been devoted, both in industry and academia, towards the performance modelling, evaluation and prediction of convergent multi-service heterogeneous networks, such as wireless and optical networks, towards the design and dimensioning of the next and future generation Internets.This book follows Heterogeneous Networks: Traffic Engineering, Performance Evaluation Studies and Tools and presents recent advances in networks of diverse technology reflecting the state-of-the-art technology and research achievements in performance modelling, analysis and applications worldwide.Technical topics discussed in the book include:• Multiservice Switching Networks;• Multiservice Switching Networks;• Wireless Ad Hoc Networks;• Wireless Sensor Networks;• Wireless Cellular Networks;• Optical Networks;Heterogeneous Networks:- Performance Modelling and Analysis contains recently extended research papers, which have their roots in the series of the HET-NETs International Working Conferences focusing on the 'Performance Modelling and Evaluation of Heterogeneous Networks' under the auspices of the EU Networks of Excellence Euro-NGI and Euro-FGI.Heterogeneous Networks: Performance Modelling and Analysis is ideal for personnel in computer/communication industries as well as academic staff and master/research students in computer science, operational research, electrical engineering and telecommunication systems and the Internet.KeywordsHeterogeneous networks, performance modelling and analysis, wired networks, wireless networks: ad hoc, sensor and cellular, optical networks, next and future generation Internets.

Download or read book A GPS written by Frank Stephen Tromp Van Diggelen and published by Artech House. This book was released on 2009 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today, increasing demands and expectations are being placed on GPS systems. Assisted GPS (A-GPS) has been developed to provide greatly improved capabilities, helping GPS work better and faster in almost any location. Offering a detailed look at all the technical aspects and underpinnings of A-GPS, this unique book places emphasis on practical implementation. The book reviews standard GPS design, helping you understand why GPS requires assistance in the first place. You discover how A-GPS enables the computing of a position from navigation satellites in the absence of precise time - a topic not covered in any other book. Moreover, you learn how to design and analyze a high sensitivity GPS receiver and determine the achievable sensitivity of a GPS receiver. The book provides detailed worksheets that show how to compute, analyze, and improve the processing gain from the signal strength at the antenna to the carrier-to-noise ratio (C/N0) at the front end, to the signal-to-noise ratio (SNR) after the correlators. This cutting-edge volume discusses special forms of assistance data, industry standards for A-GPS, and government mandates for location of mobile phones. You also find coverage of future global navigation satellite systems and how they can be designed specifically for instant-fixes and high sensitivity. The book features numerous tables, worksheets, and graphs that illustrate key topics and provide the equivalent of a technical handbook for engineers who design or use A-GPS.

Download or read book New Satellite and Ground Data for IRI and Comparison with Regional Models written by Bodo W. Reinisch and published by . This book was released on 2007 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book AIAA Flight Simulation Technologies Conference written by and published by . This book was released on 1996 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modelling the Wireless Propagation Channel written by Fernando P¿rez Font¿n and published by John Wiley & Sons. This book was released on 2008-09-15 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical tool for propagation channel modeling with MATLAB® simulations. Many books on wireless propagation channel provide a highly theoretical coverage, which for some interested readers, may be difficult to follow. This book takes a very practical approach by introducing the theory in each chapter first, and then carrying out simulations showing how exactly put the theory into practice. The resulting plots are analyzed and commented for clarity, and conclusions are drawn and explained from the obtained results. Key features include: A unique approach to propagation channel modeling with accompanying MATLAB® simulations to demonstrate the theory in practice Contains step by step commentary and analysis of the obtained simulation results in order to provide a comprehensive and structured learning tool Covers a wide range of topics including shadowing effects, coverage and interference, Multipath Narrowband channel, Multipath Wideband channel, propagation in micro and pico-cells, the land mobile satellite (LMS) channel, the directional Multipath channel and MIMO and propagation effects in fixed radio links (terrestrial and satellite) The book comes with an accompanying website that contains the MATLAB® simulations and allows readers to try them out themselves Well suited for lab-use, as reference and as a self-learning tool both for advanced students and professionals Modeling the Wireless Propagation Channel: A simulation approach with MATLAB® will be best suited for postgraduate (Masters and PhD) students and practicing engineers in telecommunications and electrical engineering fields, who are seeking to familiarise themselves with the topic without too many formulas. The book will also be of interest to network engineers, system engineers and researchers