The bestselling CWNA study guide, updated for the latest exam
The CWNA: Certified Wireless Network Administrator Study Guide is the ultimate preparation resource for the CWNA exam.
Автор: Cripps, Steve C. Название: Rf power amplifiers for wireless communications ISBN: 1596930187 ISBN-13(EAN): 9781596930186 Издательство: Artech House Рейтинг: Цена: 25872.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Offers practitioners a comprehensive, practical understanding of how to tackle a PA (power amplifier) design with confidence and quickly determine the cause of malfunctioning hardware. Supported with nearly 200 illustrations, this book contains the survey of RF PA efficiency enhancement and linearization techniques.
Автор: Dahlman, Erik Название: 5G NR – The Next Generation Wireless Access Technology ISBN: 0128143231 ISBN-13(EAN): 9780128143230 Издательство: Elsevier Science Рейтинг: Цена: 12815.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: 5G NR: The Next Generation Wireless Access Technologyfollows the authors' highly celebrated books on 3G and 4G by providing a new level of insight into 5G NR. After an initial discussion of the background to 5G, including requirements, spectrum aspects and the standardization timeline, all technology features of the first phase of NR are described in detail. . Included is a detailed description of the NR physical-layer structure and higher-layer protocols, RF and spectrum aspects and co-existence and interworking with LTE. The book provides a good understanding of NR and the different NR technology components, giving insight into why a certain solution was selected. . Content includes:. . . . Key radio-related requirements of NR, design principles, technical features. Details of basic NR transmission structure, showing where it has been inherited from LTE and where it deviates from it, and the reasons why. NR Multi-antenna transmission functionality. Detailed description of the signals and functionality of the initial NR access, including signals for synchronization and system information, random access and paging. LTE/NR co-existence in the same spectrum, the benefits of their interworking as one system. The different aspects of mobility in NR RF requirements for NR will be described both for BS and UE, both for the legacy bands and for the new mm-wave bands
Автор: Ghassemlooy Название: Optical Wireless Communications ISBN: 1138074802 ISBN-13(EAN): 9781138074804 Издательство: Taylor&Francis Рейтинг: Цена: 12401.00 р. Наличие на складе: Поставка под заказ.
Описание:
Detailing a systems approach, Optical Wireless Communications: System and Channel Modelling with MATLAB(R), is a self-contained volume that concisely and comprehensively covers the theory and technology of optical wireless communications systems (OWC) in a way that is suitable for undergraduate and graduate-level students, as well as researchers and professional engineers.
Incorporating MATLAB(R) throughout, the authors highlight past and current research activities to illustrate optical sources, transmitters, detectors, receivers, and other devices used in optical wireless communications. They also discuss both indoor and outdoor environments, discussing how different factors--including various channel models--affect system performance and mitigation techniques.
In addition, this book broadly covers crucial aspects of OWC systems:
Fundamental principles of OWC
Devices and systems
Modulation techniques and schemes (including polarization shift keying)
Channel models and system performance analysis
Emerging visible light communications
Terrestrial free space optics communication
Use of infrared in indoor OWC
One entire chapter explores the emerging field of visible light communications, and others describe techniques for using theoretical analysis and simulation to mitigate channel impact on system performance. Additional topics include wavelet denoising, artificial neural networks, and spatial diversity. Content also covers different challenges encountered in OWC, as well as outlining possible solutions and current research trends. A major attraction of the book is the presentation of MATLAB simulations and codes, which enable readers to execute extensive simulations and better understand OWC in general.
Автор: Elgendi, Mohamed Название: PPG Signal Analysis ISBN: 1138049719 ISBN-13(EAN): 9781138049710 Издательство: Taylor&Francis Рейтинг: Цена: 17609.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book serves as a current resource for Photoplethysmogram (PPG) signal analysis using MATLAB (R). This technology is critical in the evaluation of medical and diagnostic data utilized in mobile devices.
Описание: Design of Digital Phase Shifters for Multipurpose Communication Systems covers a new emerging need in designing digital phase shifters for modern communication systems. With the advancement of new generation mobile communication systems, directed beams save a substantial amount of RF-power, and improve the noise immunity. In this regard, beam-forming circuits, namely, digital phase shifters constitute essential parts of the antenna arrays. Therefore, this book is devoted to design of digital phase shifters for various communications systems. In the good old days, phase shifter design requirements used to demand narrow bandwidth with no physical size constraints. Nowadays, they must be compact and suitable for Very Large Scale Integrated Circuits (VLSI) or Microwave Monolithic Integrated Circuit (MMIC) implementation with Wide Phase Range (WPR) and Wide Frequency Band (WFB). Since the 1980s, the author has been designing digital phase shifters for various applications. He started to work with loaded lines phase shifters, and then employed branch line couplers to achieve wider frequency bands. In order to reduce the physical size, he used a 3 element Symmetric LC ladder based T or PI configurations. In order to achieve broad frequency band with large phase range, usage of LC lattice structures is inevitable. Lately, the author designed phase shifters using both lowpass and highpass LC ladder and lattice based switched-structures, which are suitable for monolithic implementation. In the course of design, MOS transistors were employed as switching elements. This book includes several novel digital phase shifter topologies, which provides wide phase range and wideband operation. Technical topics discussed in the book include:
Basic Concept of Antenna Arrays
Concept of Digital Phase Bit
Scattering Parameters to analyze the electric performance of phase shifters
Transmission Lines as circuit elements to construct practical phase shifters
Loaded Line Digital Phase Shifters (DPS)
Lowpass Based T/PI Section DPS
Highpass Based T/PI Section DPS
3-Element LC T/PI Section DPS
Wide Phase Range, Wide Frequency Band Symmetric Lattice Based DPS
For each topology presented, explicit design equations are provided and programs to assess the electric performance of each topology is developed in a MatLab environment. It is expected that the reader will be self-sufficient to design and implement the digital phase shifters topologies presented in this book.
Автор: Dinh Thai Hoang, Dusit Niyato, Dong In Kim, Nguyen Название: Ambient Backscatter Communication Networks ISBN: 1108480861 ISBN-13(EAN): 9781108480864 Издательство: Cambridge Academ Рейтинг: Цена: 17266.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Understand the fundamental principles of ambient backscatter technology with this authoritative review of the state-of-the-art in research and technological development. Focussing on architectures, protocols, and applications, this is an essential resource for graduate students, researchers, engineers, developers, and entrepreneurs.
Автор: Shinohara Naoki Название: Wireless Power Transmission Via Radiowaves ISBN: 184821605X ISBN-13(EAN): 9781848216051 Издательство: Wiley Рейтинг: Цена: 22010.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Recent advances in Wireless Power Transmission (WPT) technologies have enabled various engineering applications with potential product implementation. WPT can be utilized to charge batteries in various pieces of equipment without the need for a wired connection.
Автор: Marzetta Название: Fundamentals of Massive MIMO ISBN: 1107175577 ISBN-13(EAN): 9781107175570 Издательство: Cambridge Academ Рейтинг: Цена: 11405.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Written by the concept`s pioneers, this is the first complete guide to the physical and engineering principles of Massive MIMO. Richly illustrated by numerous case studies, it covers key topics such as propagation models, channel modeling, and cell analysis, and stresses capacity bounds. Problem sets and solutions are provided online.
Описание: It comprises twelve chapters divided into two parts discussing "Non-neutral Evolution on Human Genes" (Part I) and "Evolution of Modern Human Populations" (Part II.)The most significant feature of this book is the continent-wise discussion of modern human dispersal using human genomic data in Part II.
Автор: Masoud Babaie, Mina Shahmohammadi, Robert Bogdan S Название: RF CMOS Oscillators for Modern Wireless Applications ISBN: 8793609493 ISBN-13(EAN): 9788793609495 Издательство: Taylor&Francis Рейтинг: Цена: 14086.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
While mobile phones enjoy the largest production volume ever of any consumer electronics products, the demands they place on radio-frequency (RF) transceivers are particularly aggressive, especially on integration with digital processors, low area, low power consumption, while being robust against process-voltage-temperature variations. Since mobile terminals inherently operate on batteries, their power budget is severely constrained. To keep up with the ever increasing data-rate, an ever-decreasing power per bit is required to maintain the battery lifetime. The RF oscillator is the second most power-hungry block of a wireless radio (after power amplifiers). Consequently, any power reduction in an RF oscillator will greatly benefit the overall power efficiency of the cellular transceiver. Moreover, the RF oscillators' purity limits the transceiver performance. The oscillator's phase noise results in power leakage into adjacent channels in a transmit mode and reciprocal mixing in a receive mode. On the other hand, the multi-standard and multi-band transceivers that are now trending demand wide tuning range oscillators. However, broadening the oscillator's tuning range is usually at the expense of die area (cost) or phase noise.
The main goal of this book is to bring forth the exciting and innovative RF oscillator structures that demonstrate better phase noise performance, lower cost, and higher power efficiency than currently achievable.
Technical topics discussed in RF CMOS Oscillators for Modern Wireless Applications include:
- Design and analysis of low phase-noise class-F oscillators - Analyze a technique to reduce 1/f noise up-conversion in the oscillators - Design and analysis of low power/low voltage oscillators - Wide tuning range oscillators - Reliability study of RF oscillators in nanoscale CMOS
Автор: Fa–Long Luo Название: Machine Learning for Future Wireless Communications ISBN: 1119562252 ISBN-13(EAN): 9781119562252 Издательство: Wiley Рейтинг: Цена: 18683.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
A comprehensive review to the theory, application and research of machine learning for future wireless communications
In one single volume, Machine Learning for Future Wireless Communications provides a comprehensive and highly accessible treatment to the theory, applications and current research developments to the technology aspects related to machine learning for wireless communications and networks. The technology development of machine learning for wireless communications has grown explosively and is one of the biggest trends in related academic, research and industry communities.
Deep neural networks-based machine learning technology is a promising tool to attack the big challenge in wireless communications and networks imposed by the increasing demands in terms of capacity, coverage, latency, efficiency flexibility, compatibility, quality of experience and silicon convergence. The author - a noted expert on the topic - covers a wide range of topics including system architecture and optimization, physical-layer and cross-layer processing, air interface and protocol design, beamforming and antenna configuration, network coding and slicing, cell acquisition and handover, scheduling and rate adaption, radio access control, smart proactive caching and adaptive resource allocations. Uniquely organized into three categories: Spectrum Intelligence, Transmission Intelligence and Network Intelligence, this important resource:
Offers a comprehensive review of the theory, applications and current developments of machine learning for wireless communications and networks
Covers a range of topics from architecture and optimization to adaptive resource allocations
Reviews state-of-the-art machine learning based solutions for network coverage
Includes an overview of the applications of machine learning algorithms in future wireless networks
Explores flexible backhaul and front-haul, cross-layer optimization and coding, full-duplex radio, digital front-end (DFE) and radio-frequency (RF) processing
Written for professional engineers, researchers, scientists, manufacturers, network operators, software developers and graduate students, Machine Learning for Future Wireless Communications presents in 21 chapters a comprehensive review of the topic authored by an expert in the field.
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