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Books > Professional & Technical > Electronics & communications engineering > Communications engineering / telecommunications > WAP (wireless) technology
A basic question in wireless networking is how to optimize the wireless network resource allocation for utility maximization and interference management. How can we overcome interference to efficiently optimize fair wireless resource allocation, under various stochastic constraints on quality of service demands? Network designs are traditionally divided into layers. How does fairness permeate through layers? Can physical layer innovation be jointly optimized with network layer routing control? How should large complex wireless networks be analyzed and designed with clearly-defined fairness using beamforming? Wireless Network Optimization by Perron-Frobenius Theory provides a comprehensive survey of the models, algorithms, analysis, and methodologies using a Perron-Frobenius theoretic framework to solve wireless utility maximization problems. This approach overcomes the notorious non-convexity barriers in these problems, and the optimal value and solution of the optimization problems can be analytically characterized by the spectral property of matrices induced by nonlinear positive mappings. It can even solve several previously open problems in the wireless networking literature. This survey will be of interest to all researchers, students and engineers working on wireless networking.
From the transition of analog to digital communication, along with seamless mobility and high computing power of small handheld devices, the wireless communications industry has seen tremendous changes leading to the integration of several telecommunication networks, devices and services over the last 30 years. The rate of this progress and growth has increased particularly in the past decade because people no longer use their devices and networks for voice only, but demand bundle contents such as data download/streaming, HDTV, HD video, 3D video conferencing with higher efficiency, seamless connectivity, intelligence, reliability and better user experience. In this book, there are nine chapters which cover wireless networking evolution and technology advancements. High level discussions on this important and fast growing industry are presented by technology, academic, and industry communities. The content of this book will shed some light on this subject and the chapters presented in this book discuss the design and implementation of various short and long range wireless/wireline networking. The challenges faced in providing applications and services to meet user experiences ubiquitously and securely are presented.
This book will have a broad appeal in the area of Wireless Networking-Based Control. Various engineering disciplines, control and communication science organizations will be interested in purchasing the book with a new, emerging, and important theme. Also, industry such as Honeywell and those (e.g. power industry, automotive industry, aerospace industry) interested in implementing wireless network control to express interest in purchasing this book.
Leverage the powerful Arduino and XBee platforms to monitor and control your surroundings About This Book * Build your own low-power, wireless network using ready-made Arduino and XBee hardware * Create a complex project using the Arduino prototyping platform * A guide that explains the concepts and builds upon them with the help of examples to form projects Who This Book Is For This book is targeted at embedded system developers and hobbyists who have some working knowledge of Arduino and who wish to extend their projects using wireless connectivity. What You Will Learn * Interact with XBee boards using the XCTU program on Windows, OS X, or Linux * Make your Arduino boards communicate wirelessly, using XBee modules in the advanced API mode * Centrally collect and store measured sensor data, in the cloud or your own database * Connect the coordinator Arduino to the Internet and send data to web services * Control your environment automatically, based on sensor input from your network * Interact with off-the-shelf ZigBee Home Automation devices * Make your devices battery-powered and let them sleep to get months or even years of battery life In Detail Arduino has been established as the de facto standard microcontroller programming platform, being used for one-off do-it-yourself projects as well as prototypes for actual products. By providing a myriad of libraries, the Arduino community has made it very easy to interact with pretty much any piece of hardware out there. XBee offers a great range of low-power wireless solutions that are easy to work with, by taking all of the complexity of wireless (mesh) networking out of your hands and letting you focus on what to send without worrying about the how. Building wireless sensor networks is cost-effective as well as efficient as it will be done with Arduino support. The book starts with a brief introduction to various wireless protocols, concepts, and the XBee hardware that enables their use. Then the book expands to explain the Arduino boards to you, letting them read and send sensor data, collect that data centrally, and then even control your home from the Internet. Moving further more advanced topics such as interacting through the standard Zigbee Home Automation protocol, or making your application power-efficient are covered. By the end of the book, you will have all the tools needed to build complete, real-world solutions. Style and approach A hands-on guide, featuring a single home automation project that can be built as described or with endless variations. Every step is illustrated with complete examples and screenshots, allowing you to build the examples swiftly.
This book gathers selected high-quality research papers presented at International Conference on Paradigms of Communication, Computing and Data Sciences (PCCDS 2022), held at Malaviya National Institute of Technology Jaipur, India, during 05 - 07 July 2022. It discusses high-quality and cutting-edge research in the areas of advanced computing, communications and data science techniques. The book is a collection of latest research articles in computation algorithm, communication and data sciences, intertwined with each other for efficiency.
Multi-way communication is a means to significantly improve the spectral efficiency of wireless networks. This monograph provides an overview of the developments in this research area since it was initiated by Claude Shannon. The basic two-way communication channel is considered first, followed by the two-way relay channel obtained by the deployment of an additional cooperative relay node to improve the overall communication performance. This basic setup is then extended to multi-user systems. For all these setups, fundamental limits on the achievable rates are reviewed, making use of a linear high-SNR deterministic channel model to provide valuable insights that are helpful when discussing of the coding schemes for Gaussian channel models in detail. Several tools and communication strategies are used in the process, including computation, signal-space alignment, and nested lattice codes. Finally, extensions of multi-way communication channels to multiple antenna settings are discussed. This monograph provides a starting point for any researcher or student in understanding this important topic central to wireless communication systems.
The modern world of ubiquitous communication devices has fueled recent research into the need to find technical solutions to address energy consumption concerns raised by various stakeholders. These include: The exponential increase of connected devices that wireless communications have been experiencing poses serious sustainable growth concerns. The rapid expansion of wireless networks causes environmental concerns. Economic concerns drive the development of novel energy-efficient ICT. This monograph focuses on energy-efficient wireless network design, including resource allocation, scheduling, precoding, relaying, and decoding. Starting from simple point-to-point (P2P) systems and then gradually moving towards more complex interference networks, the energy efficiency is defined and its properties characterized. The authors show how the energy efficiency is naturally defined by fractional functions, thus establishing that a key role in the modeling, analysis, and optimization of energy efficiency is played by fractional programming; a branch of optimization theory specifically concerned with the properties and optimization of fractional functions. The monograph introduces fractional programming theory, and illustrates how it can be used to formulate and handle energy efficiency optimization problems. It provides a comprehensive introduction to the theoretical and practical aspects of these problems and describes the solutions offered with this technique. It will be of use to all researchers and engineers working on modern communication systems.
Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. Design Next-Generation Wireless Networks Using the Latest TechnologiesFully updated throughout to address current and emerging technologies, standards, and protocols, Wireless Networks, Third Edition, explains wireless system design, high-speed voice and data transmission, internet working protocols, and 4G convergence. New chapters cover LTE, WiMAX, WiFi, and backhaul. You'll learn how to successfully integrate LTE, WiMAX, UMTS, HSPA, CDMA2000/EVDO, and TD-SCDMA into existing cellular/PCS networks. Configure, manage, and optimize high-performance wireless networks with help from this thoroughly revised, practical guide. Comprehensive coverage includes: Overview of 3G wireless systems UMTS (WCDMA) and HSPA CDMA2000 and EVDO TD-SCDMA and TD-CDMA LTE WiMAX VoIP WiFi Broadband system RF design considerations Network design considerations Backhaul Antenna system selection, including MIMO System design for UMTS, CDMA2000 with EVDO, TD-SCDMA, TD-CDMA, LTE, and WiMAX Communication sites including in-building and colocation guidelines 5G and beyond
This detailed, up-to-date introduction to heterogeneous cellular networking introduces its characteristic features, the technology underpinning it and the issues surrounding its use. Comprehensive and in-depth coverage of core topics catalogue the most advanced, innovative technologies used in designing and deploying heterogeneous cellular networks, including system-level simulation and evaluation, self-organisation, range expansion, cooperative relaying, network MIMO, network coding and cognitive radio. Practical design considerations and engineering tradeoffs are also discussed in detail, including handover management, energy efficiency and interference management techniques. A range of real-world case studies, provided by industrial partners, illustrate the latest trends in heterogeneous cellular networks development. Written by leading figures from industry and academia, this is an invaluable resource for all researchers and practitioners working in the field of mobile communications.
The book is a collection of best selected research papers presented at the International Conference on Recent Trends in Machine Learning, IoT, Smart Cities and Applications (ICMISC 2022) held during 28 - 29 March 2022 at CMR Institute of Technology, Hyderabad, Telangana, India. This book will contain the articles on current trends of machine learning, internet of things, and smart cities applications emphasizing on multi-disciplinary research in the area of artificial intelligence and cyber physical systems. The book is a great resource for scientists, research scholars and PG students to formulate their research ideas and find the future directions in these areas. Further, this book serves as a reference work to understand the latest technologies by practice engineers across the globe.
This book is written in an easy-to-read style, with a strong emphasis on real-world, practical examples. Step-by-step explanations are provided for performing important administration tasks. If you are Cisco Unified Communications administrators or engineers looking forward for advanced recipes to perform important administration tasks, then this is the best guide for you. This book assumes familiarity with the basics of Cisco's Unified Communications Manager architecture.
This book provides a comprehensive description of the Long Term Evolution (LTE) radio access network, as specified by 3GPP. The content is aimed towards anyone wishing to learn the basics, or to develop a more thorough understanding. The content is presented in the form of bullet points to keep it concise and to allow rapid access to the key information. Highlights include: - Complete text is presented as bullet points - Can be read with ease and in less time - Illustrations and tables support text - Content includes both introductory and advanced topics - Based upon the release 8, 9 and 10 versions of the 3GPP specifications - Detailed description of air-interface, bit rates and physical channels - Most important messages and signalling procedures explained - Idle mode and physical layer procedures presented - Practical radio network planning subjects addressed - Includes both FDD and TDD variants - LTE Advanced technologies presented - Voice over LTE solutions described
The radio-frequency spectrum is a natural resource used to provide an array of wireless communications services that are critical to the U.S. economy and national security, such as mobile voice and data services, radio and television broadcasting, radar, and satellite-based services. Demand for radio-frequency spectrum has exploded over the past several decades as new technologies and services have been and continue to be brought to the market in the private sector and new mission needs unfold among government users of spectrum, including wireless communications critical for public safety officials responding to natural and man-made disasters. This book examines the plans and actions to meet future needs of commercial spectrum management.
This book presents systematic methods for estimating environmental fields using multiple mobile sensors. Monitoring environmental fields is a complex task and is of great use in many areas, such as for building models of natural phenomenon, e.g. agriculture monitoring, such as monitoring soil temperature to manage frost, wind, water, disease, and pests. Ocean, river and lake monitoring of environmental phenomena, such as salinity in lakes, tracking water temperature, particulate densities and pollutants responsible for sustaining marine colonies, or coral cover of oceanic reefs. Meteorology monitoring, such as tracking of storms, gas plumes, and air quality; forest monitoring for tracking humidity in forests, and prediction and decision making during forest fire fighting, etc. Sampling is a broad methodology for gathering statistical information about a phenomenon. The capabilities and distributed nature of wireless sensor networks provide an attractive sampling approach for estimation of spatiotemporally distributed environmental fields. This is adaptive sampling, where the strategy for 'where to sample next' evolves temporally with past measurements. Thus the sensor network physically adapts with past measurements to enable sampling at locations that give maximal information about the field being estimated. This book presents adaptive sampling strategies with multiple, heterogeneous and mobile sensors. Sensors of this kind present several complexities, some of which like deadlocks and localisation issues are also addressed here.
A wireless sensor network (WSN) consists of spatially distributed autonomous sensors to co-operatively monitor physical or environmental conditions, such as temperature, sound, vibration, pressure, motion or pollutants. The development of wireless sensor networks was motivated by military applications such as battlefield surveillance. They are now used in many industrial and civilian application areas, including industrial process monitoring and control, machine health monitoring, environment and habitat monitoring, healthcare applications, home automation, and traffic control. This book gathers and presents topical research data from around the globe in the field of wireless sensor networks.
"Wireless Communications Standards: A Study of IEEE 802.11, 802.15, and 802.16" is one of the latest books in the IEEE Standards Wireless Networks Series, and it is the only book of its kind that covers all of the current 802 wireless standards Presented in a clear style, by Dr. Todor Cooklev of San Francisco State University, the book is accessible to a wide audience. It is aimed at engineers, computer scientists, managers, and marketing specialists. It can also be used as the primary textbook for a one-semester advanced undergraduate/graduate level course on wireless communication standards, or as a complementary textbook for a course in wireless communications.
As a result of higher frequencies and increased user mobility
researchers and systems designers are shifting their focus from
time-invariant models to channels that vary within a block. This
book explains the latest theoretical advances and practical methods
to give an understanding of rapidly time varying channels, together
with performance trade-offs and potential performance gains,
providing the expertise to develop future wireless systems
technology. As well as an overview of the issues of developing
wireless systems using time-varying channels, the book gives
extensive coverage to methods for estimating and equalizing rapidly
time-varying channels, including a discussion of training data
optimization, as well as providing models and transceiver methods
for time-varying ultra-wideband channels.
This text explains the general principles of how wireless systems work, how mobility is supported, what the underlying infrastructure is and what interactions are needed among different functional components. Designed as a textbook appropriate for undergraduate or graduate courses in Computer Science (CS), Computer Engineering (CE), and Electrical Engineering (EE), Introduction to Wireless and Mobile Systems third edition focuses on qualitative descriptions and the realistic explanations of relationships between wireless systems and performance parameters. Rather than offering a thorough history behind the development of wireless technologies or an exhaustive list of work being carried out, the authors help CS, CE, and EE students learn this exciting technology through relevant examples such as understanding how a cell phone starts working as soon as they get out of an airplane.
Objectives: This book examined the decision making process and health seeking patterns of low-income young women with unplanned pregnancies who opted for abortion, putting baby up for adoption, or keeping the baby. Methods: Research methodology in this book focused on formative research utilising qualitative data. The study was conducted covering all five shelters and low-income communities in Bangkok, Thailand. The data collection was through Focus Group Discussions, and in-depth interview. Forty-five cases were purposively recruited into the study. The data were analysed using content analysis. Results: From the qualitative research, the results indicated that the majority of the young women tended to select abortion as their first choice, while a few cases continued their pregnancies to term without any attempt to terminate the pregnancy. These women tended to delay seeking assistance once they found out their pregnancy situation. Majority of the low-income young women were more likely to resort self-medication as their first alternative, which was sometimes hazardous to their health. Decision on self-medication or abortions with unskilled personnel sometimes resulted in serious and life-threatening complications. Many pregnancy-termination situations resulted from self-medication. While most of these women made the important decision themselves, they still sought advice, guidance, and support from their partners, peers and parents. When the first attempt failed, they would seek a second or third attempt until they felt it was not possible to achieve what they had planned. Most women with unplanned pregnancies knew that they had options regarding termination of their pregnancies but their main concern was confidentiality. Consequently, the women who wanted to terminate their pregnancies adopted three patterns of action, i.e., 1) visiting drugstores / grocery stores, 2) visiting private clinics or hospitals, and 3) using physical pressure or vigorous actions. Most of the women realised that private clinics provided effective methods for terminating pregnancy, but due to its high cost, they would first resort self-medication or self-management. If they were not successful, they would then visit a private clinic and asked others to support the cost. Understanding the women's decisions making process and their health seeking patterns utilisation allows us to understand their decision and course of actions. The program managers, implementers, providers, partners, parents/relatives, and friends should do as much as possible to support the decision of the women in order to provide better information and services to reduce the impact, both physical and mental, of their selected choice.
Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. Master the Signal Processing Concepts and Techniques Needed to Design and Operate Any Wireless Communications Network Signal Processing for Wireless Communications offers communications engineers an application-focused guide to the essential concepts and techniques of wireless signal processing. This comprehensive reference examines the role that key algorithms and standard migration paths play in the design and day-to-day operations of today's state-of-the-art wireless networks. Written by Dr. Joseph Boccuzzi, a leading signal processing expert with years of product development, research, and teaching experience, this on-target engineering tool takes readers step by step through major wireless topics...modulation theory...wireless multipath channel...modulation detection methods...performance improvement techniques...receiver digital signal processing...3G wideband CDMA...computer simulation estimation techniques...and 3G and beyond. Designed to bring engineers up to speed on the latest breakthroughs in signal processing technology, Signal Processing for Wireless Communications features: Expert coverage of 3G wideband CDMA Discussion of the role OFDM will play in future technologies Complete information on the role of vital signal processing algorithms within the context of wireless applications Discussions of advanced signal processing challenges in the mobile environment Over 500 detailed illustrations Inside This Hands-On Signal Processing Guide * Wireless Topics * Modulation Theory * Wireless Multipath Channel * Modulation Detection Techniques * Performance Improvement Techniques * Receiver Digital Signal Processing * 3G Wideband CDMA * Computer Simulation Estimation Techniques * 3G and Beyond
As WLANs (Wireless Local Area Networks) become increasingly common,
it's becoming vital to be able to test them for proper performance
and to optimize their operation. This book, written by a member of
the IEEE committee that develops WLAN standards, is the first book
addressing that need. It covers test equipment and methods for the
RF (wireless) and physical layers of WLAN, protocols, the
application layer, and manufacturing testing. The emphasis
throughout is on underlying engineering principles along with
modern metrics and methodologies, ensuring this book gives both a
solid theoretical background along with field-proven techniques and
applications.
Wi-Fi telephony is the latest, most cost effective, and clearest
way of carrying voice data wirelessly. The great news is that it
can be integrated seamlessly into the same infrastructures as
currently used for computer and telephone data.The digital quality
is far above current cellular technologies.
The scope of this new and important book includes: personal portable telephones, multimedia devices, digital assistants, and communicating palmtop computers; registration and handoff protocols, messaging, and communications and computing requirements; network control and management for protocols associated with routing and tracking of mobile users; location-independent numbering plans for movable personal services; personal profiles, personalised traffic filtering, and other database-driven aspects of personal communications; link access technologies and protocols; radio and infrared channel characterisation and other microcell-based personal communication systems; satellite systems and global personal communications; traffic management and performance issues; policy issues in spectrum allocation, industry structure, and technology evolution; applications, case studies, and field experience; and, intelligent vehicle highway systems.
WiMAX Broadband Wireless Access Technology based on the IEEE 802.16 standard is at the origin of great promises for many different markets covering fixed wireless Internet Access, Backhauling and Mobile cellular networks. WiMAX technology is designed for the transmission of multimedia services (voice, Internet, email, games and others) at high data rates (of the order of Mb/s per user). It is a very powerful but sometimes complicated technique. The WiMAX System is described in thousands of pages of IEEE 802.16 standard and amendments documents and WiMAX Forum documents. "WiMAX: Technology for Broadband Wireless Access" provides a global picture of WiMAX and a large number of details that makes access to WiMAX documents much easier. All the aspects of WIMAX are covered. Illustrations and clear explanations for all the main procedures of WiMAX are pedagogically presented in a succession of relatively short chapters Topics covered include WiMAX genesis and framework, WiMAX topologies, protocol layers, MAC layer, MAC frames, WiMAX multiple access, the physical layer, QoS Management, Radio Resource Management, Bandwidth allocation, Network Architecture, Mobility and Security Features a glossary of abbreviations and their definitions, and a wealth of explanatory tables and figures Highlights the most recent changes, including the 802.16e amendment of the standard, needed for Mobile WiMAX Includes technical comparisons of WiMAX vs. 802.11 (WiFi) and cellular 3G technologies This technical introduction to WiMAX, explaining the rather complex standards (IEEE 802.16-2004 and 802.16e) is a must read for engineers, decision-makers and students interested in WiMAX, as well as otherresearchers and scientists from this evolving field. |
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