Wireless Communications and Mobile Computing - Böcker
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13 produkter
13 produkter
Del 3 - Wireless Communications and Mobile Computing
Wireless Personal Area Networks
Performance, Interconnection and Security with IEEE 802.15.4
Inbunden, Engelska, 2008
1 454 kr
Skickas inom 7-10 vardagar
Wireless Personal Area Networks provides an in-depth analysis of the recent IEEE 802.15.4 standard for low data rate wireless personal area networks (LR-WPANs), including suggestions to improve performance and comparisons with the related 802.15.1 (Bluetooth) standard. It assesses the suitability of the standard for the development and deployment of wireless sensor networks as well as providing guidance and insight into the relative advantages and disadvantages of various performance solutions. Wireless Personal Area Networks: Provides a comprehensive, in-depth look at the issues surrounding WPAN network operation and performance.Investigates multi-cluster networks and compares how they can be implemented.Analyzes the performance of a single cluster under different traffic and power management regimes including uplink vs. downlink traffic, acknowledged vs. unacknowledged traffic, saturation vs. non-saturation, and the like.Discusses security issues in WPANs such as different security threats, their impact on performance, standard security mechanisms, and security policies.Compares the IEEE 802.15.4 standard with the related Bluetooth IEEE 802.15.1 standard in terms of suitability for implementing wireless sensor networks.This reference is a valuable tool for developers and researchers getting acquainted with various aspects of IEEE 802.15.4 technology. Graduate students studying courses such as Performance Evaluation, Wireless Sensor Networks and Queuing Theory will also find this book very insightful.
1 012 kr
Tillfälligt slut
This book provides an introduction to opportunistic routing an emerging technology designed to improve the packet forwarding reliability, network capacity and energy efficiency of multihop wireless networks This book presents a comprehensive background to the technological challenges lying behind opportunistic routing. The authors cover many fundamental research issues for this new concept, including the basic principles, performance limit and performance improvement of opportunistic routing compared to traditional routing, energy efficiency and distributed opportunistic routing protocol design, geographic opportunistic routing, opportunistic broadcasting, and security issues associated with opportunistic routing, etc. Furthermore, the authors discuss technologies such as multi-rate, multi-channel, multi-radio wireless communications, energy detection, channel measurement, etc. The book brings together all the new results on this topic in a systematic, coherent and unified presentation and provides a much needed comprehensive introduction to this topic.Key Features: Addresses opportunistic routing, an emerging technology designed to improve the packet forwarding reliability, network capacity and energy efficiency of multihop wireless networksDiscusses the technological challenges lying behind this new technology, and covers a wide range of practical implementation issuesExplores many fundamental research issues for this new concept, including the basic principles of opportunistic routing, performance limits and performance improvement, and compares them to traditional routing (e.g. energy efficiency and distributed opportunistic routing protocol design, broadcasting, and security issues)Covers technologies such as multi-rate, multi-channel, multi-radio wireless communications, energy detection, channel measurement, etc.This book provides an invaluable reference for researchers working in the field of wireless networks and wireless communications, and Wireless professionals. Graduate students will also find this book of interest.
1 331 kr
Skickas inom 7-10 vardagar
This book provides a cross-disciplinary reference to speech in mobile and pervasive environments Speech in Mobile and Pervasive Environments addresses the issues related to speech processing on resource-constrained mobile devices. These include speech recognition in noisy environments, specialised hardware for speech recognition and synthesis, the use of context to enhance recognition and user experience, and the emerging software standards required for interoperability. This book takes a multi-disciplinary look at these matters, while offering an insight into the opportunities and challenges of speech processing in mobile environs. In developing regions, speech-on-mobile is set to play a momentous role, socially and economically; the authors discuss how voice-based solutions and applications offer a compelling and natural solution in this setting.Key Features Provides a holistic overview of all speech technology related topics in the context of mobilityBrings together the latest research in a logically connected way in a single volumeCovers hardware, embedded recognition and synthesis, distributed speech recognition, software technologies, contextual interfacesDiscusses multimodal dialogue systems and their evaluationIntroduces speech in mobile and pervasive environments for developing regionsThis book provides a comprehensive overview for beginners and experts alike. It can be used as a textbook for advanced undergraduate and postgraduate students in electrical engineering and computer science. Students, practitioners or researchers in the areas of mobile computing, speech processing, voice applications, human-computer interfaces, and information and communication technologies will also find this reference insightful. For experts in the above domains, this book complements their strengths. In addition, the book will serve as a guide to practitioners working in telecom-related industries.
1 331 kr
Skickas inom 7-10 vardagar
This book offers a practical guide on how to use and apply channel models for system evaluation In this book, the authors focus on modeling and simulation of multiple antennas channels, including multiple input multiple output (MIMO) communication channels, and the impact of such models on channel estimation and system performance. Both narrowband and wideband models are addressed. Furthermore, the book covers topics related to modeling of MIMO channel, their numerical simulation, estimation and prediction, as well as applications to receive diversity, capacity and space-time coding techniques.Key Features: Contains significant background material, as well as novel research coverage, which make the book suitable for both graduate students and researchersAddresses issues such as key-hole, correlated and non i.i.d. channels in the frame of the Generalized Gaussian approachProvides a unique treatment of generalized Gaussian channels and orthogonal channel representationReviews different interpretations of scattering environment, including geometrical modelsFocuses on the analytical techniques which give a good insight into the design of systems on higher levelsDescribes a number of numerical simulators demonstrating the practical use of this material.Includes an accompanying website containing additional materials and practical examples for self-studyThis book will be of interest to researchers, engineers, lecturers, and graduate students.
1 342 kr
Skickas inom 5-8 vardagar
This book provides an excellent reference for all professionals working in the area of array signal processing and its applications in wireless communications. Wideband beamforming has advanced with the increasing bandwidth in wireless communications and the development of ultra wideband (UWB) technology.In this book, the authors address the fundamentals and most recent developments in the field of wideband beamforming. The book provides a thorough coverage of the subject including major sub-areas such as sub-band adaptive beamforming, frequency invariant beamforming, blind wideband beamforming, beamforming without temporal processing, and beamforming for multi-path signals.Key Features: Unique book focusing on wideband beamformingDiscusses a hot topic coinciding with the increasing bandwidth in wireless communications and the development of UWB technologyAddresses the general concept of beamforming including fixed beamformers and adaptive beamformersCovers advanced topics including sub-band adaptive beamforming, frequency invariant beamforming, blind wideband beamforming, beamforming without temporal processing, and beamforming for multi-path signalsIncludes various design examples and corresponding complexity analyses This book provides a reference for engineers and researchers in wireless communications and signal processing fields. Postgraduate students studying signal processing will also find this book of interest.
Del 33 - Wireless Communications and Mobile Computing
Satellite Systems for Personal Applications
Concepts and Technology
Inbunden, Engelska, 2010
1 253 kr
Skickas inom 11-20 vardagar
Presents the concepts, technology, and role of satellite systems in support of personal applications, such as mobile and broadband communications, navigation, television, radio and multimedia broadcasting, safety of life services, etc. This book presents a novel perspective on satellite systems, reflecting the modern personal technology context, and hence a focus on the individual as end-user. The book begins by outlining key generic concepts before discussing techniques adopted in particular application areas; next, it exemplifies these techniques through discussion of state-of-art current and emerging satellite systems. The book concludes by contemplating the likely evolution of these systems, taking into consideration influences and trends in technology, in conjunction with growing user expectations.In addition to addressing satellite systems that directly interact with personal devices, the book additionally considers those indirect applications where there is an increasing interest by individuals - notably, in remote sensing. As such, the book uniquely encompasses the entire gamut of satellite-enabled personal / end-user applications.Key Features: Broad scope - views satellite systems generically with regards to their applicability across a wide range of personal application areasStrong foundation in underlying conceptsState-of-the-art system examplesReview of trends in relevant areas of satellite technologyRevision questions at the end of each chapterThe book is suited to individuals, engineers, scientists, service providers, system operators, application developers and managers interested or involved in the use of satellite technology for personal applications. It should also hold interest for use in research institutes interested in promoting inter-disciplinary cross-fertilization of ideas, as well as by financiers, policy makers, and strategists interested in gaining a better understanding of this technology.
Del 9 - Wireless Communications and Mobile Computing
Single Carrier FDMA
A New Air Interface for Long Term Evolution
Inbunden, Engelska, 2008
1 211 kr
Tillfälligt slut
Single Carrier Frequency Division Multiple Access (SC-FDMA) is a novel method of radio transmission under consideration for deployment in future cellular systems; specifically, in 3rd Generation Partnership Project Long Term Evolution (3GPP LTE) systems. SC-FDMA has drawn great attention from the communications industry as an attractive alternative to Orthogonal Frequency Division Multiple Access (OFDMA). Introduction to Single Carrier FDMA places SC-FDMA in the wider context of wireless communications, providing the reader with an in-depth tutorial on SC-FDMA technology. The book introduces the reader to this new multiple access technique that utilizes single carrier modulation along with orthogonal frequency multiplexing and frequency domain equalization, plus its applications in communications settings. It considers the similarities with and differences from orthogonal frequency division modulation, multiplexing, and multiple access used extensively in cellular, broadcasting, and digital subscriber loop applications. Particular reference is made to the peak power characteristics of an SC-FDMA signal as an added advantage over OFDMA. Provides an extensive overview of the principles of SC-FDMA and its relation to other transmission techniques. Explains how the details of a specific implementation influence the tradeoffs among various figures of merit. Describes in detail the configuration of the SC-FDMA uplink transmission scheme published by 3GPP. Features link level simulation of an uplink SC-FDMA system using MATLAB. This is an essential text for industry engineers who are researching and developing 3GPP LTE systems. It is suitable for engineers designing wireless network equipment, handsets, data cards, modules, chipsets, and test equipment as well as those involved in designing LTE infrastructure. It would also be of interest to academics, graduate students, and industry researchers involved in advanced wireless communications, as well as business analysts who follow the cellular market.
Del 14 - Wireless Communications and Mobile Computing
Modelling the Wireless Propagation Channel
A simulation approach with MATLAB
Inbunden, Engelska, 2008
1 224 kr
Skickas inom 7-10 vardagar
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 practiceContains step by step commentary and analysis of the obtained simulation results in order to provide a comprehensive and structured learning toolCovers 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 themselvesWell suited for lab-use, as reference and as a self-learning tool both for advanced students and professionalsModeling 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
Del 13 - Wireless Communications and Mobile Computing
Multimedia Services in Wireless Internet
Modeling and Analysis
Inbunden, Engelska, 2009
1 091 kr
Skickas inom 11-20 vardagar
Learn how to provide seamless, high quality multimedia for the wireless Internet This book introduces the promising protocols for multimedia services and presents the analytical frameworks for measuring their performance in wireless networks. Furthermore, the book shows how to fine-tune the parameters for Quality of Service (QoS) provisioning in order to illustrate the effect that QoS has upon the stability, integrity and growth of next generation wireless Internet. In addition, the authors provide the tools required to implement this understanding. These tools are particularly useful for design and engineering network architecture and protocols for future wireless Internet. Additionally, the book provides a good overview of wireless networks, while also appealing to network researchers and engineers.Key Features: Provides a comprehensive and analytical understanding of the performance of multimedia services in wireless Internet, and the tools to implement such an understandingAddresses issues such as IEEE 802.11, AIMD/RED (Additive Increase-Multiplicative Decrease/ Random Early Detection), multimedia traffic models, congestion control and random access networksInvestigates the impact of wireless characteristics on QoS constraint multimedia applicationsIncludes a case study on AIMD for multimedia playback applicationsFeatures numerous examples, suggested reading and review questions for each chapterThis book is an invaluable resource for postgraduate students undertaking courses in wireless networks and multimedia services, students studying advanced graduate courses in electrical engineering and computer science, and researchers and engineers in the field of wireless networks.
Del 12 - Wireless Communications and Mobile Computing
4G Wireless Video Communications
Inbunden, Engelska, 2009
1 273 kr
Skickas inom 7-10 vardagar
A comprehensive presentation of the video communication techniques and systems, this book examines 4G wireless systems which are set to revolutionise ubiquitous multimedia communication.4G Wireless Video Communications covers the fundamental theory and looks at systems’ descriptions with a focus on digital video. It addresses the key topics associated with multimedia communication on 4G networks, including advanced video coding standards, error resilience and error concealment techniques, as well as advanced content-analysis and adaptation techniques for video communications, cross-layer design and optimization frameworks and methods. It also provides a high-level overview of the digital video compression standard MPEG-4 AVC/H.264 that is expected to play a key role in 4G networks. Material is presented logically allowing readers to turn directly to specific points of interest. The first half of the book covers fundamental theory and systems, while the second half moves onto advanced techniques and applications. This book is a timely reflection of the latest advances in video communications for 4G wireless systems. One of the first books to study the latest video communications developments for emerging 4G wireless systemsConsiders challenges and techniques in video delivery over 4G wireless systemsExamines system architecture, key techniques and related standards of advanced wireless multimedia applicationsWritten from both the perspective of industry and academia
1 411 kr
Skickas inom 7-10 vardagar
This book provides a complete and comprehensive overview of 3G UMTS charging services Evolving from offline billing of traditional telecommunications, charging for IP services in mobile networks is challenging; charging convergence is one of the major trends in the telecom industry. Advanced mobile telecommunications incorporates data applications with real-time control and management, and requires a convergent and flexible online charging system. Such convergence is essential to mitigate fraud and credit risks in order to provide more personalized information to users about charges and credit limit controls.Charging for Mobile All-IP Telecommunications provides comprehensive and practical coverage of online and offline charging based on mobile operator experiences, and the latest efforts undertaken by the UMTS specifications.Key features: Presents a complete overview of the telecommunications charging system, including the evolution from 2G to 3G and all-IP network charging frameworksDiscusses all management aspects related to charging and billing processes, with a focus on the major trends and developments within the telecoms industryProvides an overview of the telecom networks such as PSTN, GSM, UMTS and IMSCovers the concepts of the telecom charging on mobile services and the new technologies for implementing online charging system, such as GTP’ and Diameter protocolContains coverage on network nodes and data flows in relation to charging of mobile applications, such as IMS call and content downloadingExplains the IP-based online charging system, protocol details and recent trends in charging for mobile telecom industryThis book is an invaluable resource for graduate students, telecoms and IP engineers, network service providers and system architects. Information technologists and networking equipment manufacturers will also find this book insightful.
Del 10 - Wireless Communications and Mobile Computing
Spectrum Requirement Planning in Wireless Communications
Model and Methodology for IMT - Advanced
Inbunden, Engelska, 2008
1 524 kr
Skickas inom 11-20 vardagar
Presents the model and methodology, applied by ITU-R WRC’07, to calculate the spectrum requirement Spectrum Requirement Planning in Wireless Communications: Model and Methodology for IMT-Advanced is a self-contained “handbook” of the models and methodologies used for the spectrum requirement calculation for IMT-Advanced systems, as well as for the predecessor IMT-2000 systems. The reader will learn how the spectrum requirement is calculated for real systems that prevail worldwide. The book also provides the basis on which to develop advanced methodologies for yet future systems, as the spectrum regulation will continue in the future. Spectrum Requirement Planning in Wireless Communications: Model and Methodology for IMT-Advanced Provides the reader with information on how the spectrum requirement is calculated for real systems that prevail worldwideContains useful tables and examples such as flowchart of the methodologyIntroduces definitions of service category and radio environment, the process of distributing traffic to radio environments, and the method to calculate the required spectrumApplies queueing and loss models for the calculation of required system capacityCovers utilization of radio frequencies, market data, spectrum requirement calculation methods for IMT-2000 and for IMT-Advanced systemsInstructs how to use the calculation tool package Comes with an accompanying website with the downloadable tool applied by ITU-R WRC’07 for making decisions on spectrum regulation for mobile systemsThis book serves as an invaluable guide to engineers in mobile phone companies, system design engineers, operator system engineers and other specialists dealing with mobile system planning and development. It is also of great interest to researchers and graduate students in the fields of applied probability theory, operations research, telecommunications, and mobile networks engineering.
1 205 kr
Skickas inom 7-10 vardagar
In this book, the authors describe the fundamental concepts and practical aspects of wireless sensor networks. The book provides a comprehensive view to this rapidly evolving field, including its many novel applications, ranging from protecting civil infrastructure to pervasive health monitoring. Using detailed examples and illustrations, this book provides an inside track on the current state of the technology. The book is divided into three parts. In Part I, several node architectures, applications and operating systems are discussed. In Part II, the basic architectural frameworks, including the key building blocks required for constructing large-scale, energy-efficient sensor networks are presented. In Part III, the challenges and approaches pertaining to local and global management strategies are presented – this includes topics on power management, sensor node localization, time synchronization, and security. At the end of each chapter, the authors provide practical exercises to help students strengthen their grip on the subject. There are more than 200 exercises altogether.Key Features: Offers a comprehensive introduction to the theoretical and practical concepts pertaining to wireless sensor networksExplains the constraints and challenges of wireless sensor network design; and discusses the most promising solutionsProvides an in-depth treatment of the most critical technologies for sensor network communications, power management, security, and programmingReviews the latest research results in sensor network design, and demonstrates how the individual components fit together to build complex sensing systems for a variety of application scenariosIncludes an accompanying website containing solutions to exercises (http://www.wiley.com/go/dargie_fundamentals)This book serves as an introductory text to the field of wireless sensor networks at both graduate and advanced undergraduate level, but it will also appeal to researchers and practitioners wishing to learn about sensor network technologies and their application areas, including environmental monitoring, protection of civil infrastructure, health care, precision agriculture, traffic control, and homeland security.