Описание: Significant progress has been made in the last decade in the understanding and modeling of propagation effects on radio wave propagation in the bands utilized for satellite communications, including extensive direct measurements and evaluation utilizing orbiting satellites. This book provides a single source for a comprehensive description and analysis of all of the atmospheric effects of concern for todays satellite systems and the tools necessary to design the links and evaluate system performance. Many of the tools and calculations are provided in a handbook form, with step-by-step procedures and all necessary algorithms in one place to allow direct calculations from one source. Covers: Satellite Orbits, Satellite Subsystems, The RF Link, Link System Performance, Transmission Impairments, Propagation Effects Modeling Analog Satellite Systems, Signal Processing Digital Satellite Systems, Satellite Multiple Access, Mobile Satellite Networks, Satellite Broadband, Satellite Applications and Trends
Описание: * A new and updated edition of the highly successful comprehensive reference to satellite communications. * Includes more information on techniques allowing service provision of multimedia content * Discusses the mobile satellite channel in view of expected developments of broadcasting.
Описание: Following on from the successful first edition (March 2012), this book gives a clear explanation of what LTE does and how it works. It assumes no more than a basic knowledge of mobile telecommunication systems, and the reader is not expected to have any previous knowledge of the complex mathematical operations that underpin LTE.
Описание: TETRA is a system for mobile wireless communications, and although its structure is comparable to the world--wide successful GSM system, TETRA has features that are often more efficient and better deigned than in GSM (Global Systems for Mobile Communications).
Описание: This book describes the concept of a Software Defined Mobile Network (SDMN), which will impact the network architecture of current LTE (3GPP) networks. SDN will also open up new opportunities for traffic, resource and mobility management, as well as impose new challenges on network security.
Автор: Xiang Название: 5G mobile communications ISBN: 3319342061 ISBN-13(EAN): 9783319342061 Издательство: Springer Рейтинг: Цена: 27950.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
This book provides a comprehensive overview of the emerging technologies for next-generation 5G mobile communications, with insights into the long-term future of 5G. Written by international leading experts on the subject, this contributed volume covers a wide range of technologies, research results, and networking methods. Key enabling technologies for 5G systems include, but are not limited to, millimeter-wave communications, massive MIMO technology and non-orthogonal multiple access.
5G will herald an even greater rise in the prominence of mobile access based upon both human-centric and machine-centric networks. Compared with existing 4G communications systems, unprecedented numbers of smart and heterogeneous wireless devices will be accessing future 5G mobile systems. As a result, a new paradigm shift is required to deal with challenges on explosively growing requirements in mobile data traffic volume (1000x), number of connected devices (10–100x), typical end-user data rate (10–100x), and device/network lifetime (10x). Achieving these ambitious goals calls for revolutionary candidate technologies in future 5G mobile systems.
Designed for researchers and professionals involved with networks and communication systems, 5G Mobile Communications is a straightforward, easy-to-read analysis of the possibilities of 5G systems.
Thissecond editionof Digital Optical Communications provides a comprehensive treatment of the modern aspects of coherent homodyne and self-coherent reception techniques using algorithms incorporated in digital signal processing (DSP) systems and DSP-based transmitters to overcome several linear and nonlinear transmission impairments and frequency mismatching between the local oscillator and the carrier, as well as clock recovery and cycle slips. These modern transmission systems have emerged as the core technology for Tera-bits per second (bps) and Peta-bps optical Internet for the near future.
Featuring extensive updates to all existing chapters, Advanced Digital Optical Communications, Second Edition:
Contains new chapters on optical fiber structures and propagation, optical coherent receivers, DSP equalizer algorithms, and high-order spectral DSP receivers
Examines theoretical foundations, practical case studies, and MATLAB(R) and Simulink(R) models for simulation transmissions
Includes new end-of-chapter practice problems and useful appendices to supplement technical information
Downloadable content available with qualifying course adoption
Advanced Digital Optical Communications, Second Edition supplies a fundamental understanding of digital communication applications in optical communication technologies, emphasizing operation principles versus heavy mathematical analysis. It is an ideal text for aspiring engineers and a valuable professional reference for those involved in optics, telecommunications, electronics, photonics, and digital signal processing.
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