Circular Array-Based Radio Frequency OAM Communications PDF Download
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Author: Rui Chen
Publisher: Springer Nature
ISBN: 3031375890
Category : Technology & Engineering
Languages : en
Pages : 256
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Book Description
This book presents the modeling and transmission theory of RF OAM communications. The book features the UCA-based RF point-to-point OAM communication system, the UCA-based RF point-to-multipoint OAM wireless backhaul network, the HCCL structure for long-distance OAM transmissions, and the UCA-based joint OAM RadCom scheme. For the UCA-based RF point-to-point OAM communication system, a 2-D ESPRIT-based distance and AoA estimation method is first introduced, followed by an OAM reception scheme including the hybrid mechanical and electronic beam steering with the estimated AoA and the amplitude detection with the estimated distance. The proposed RF OAM communication scheme is extended to the RF OAM-MIMO system equipped with UCCAs. For the UCA-based RF point-to-multipoint OAM wireless backhaul network, an OAM-based multi-user distance and AoA estimation method is introduced, followed by a multi-user OAM preprocessing scheme. At last, the proposed methods are extended to the downlink multi-user OAM-MIMO wireless backhaul system equipped with UCCAs. Moreover, a novel HCCL structure is introduced to realize long-distance OAM transmission. For the UCA-based joint OAM RadCom scheme, an OAM-based 3-D super-resolution position estimation and rotation velocity detection method is introduced, and then the PCRB of the OAM-based estimates and the transmission rate of the integrated system are derived and analyzed. To achieve the best performance trade-off, the transmitted integrated OAM beams is optimized by means of an exhaustive search method. Finally, this book discusses future research directions to inspire further investigation in the field of RF OAM communications from different perspectives.
Author: Rui Chen
Publisher: Springer Nature
ISBN: 3031375890
Category : Technology & Engineering
Languages : en
Pages : 256
Get Book Here
Book Description
This book presents the modeling and transmission theory of RF OAM communications. The book features the UCA-based RF point-to-point OAM communication system, the UCA-based RF point-to-multipoint OAM wireless backhaul network, the HCCL structure for long-distance OAM transmissions, and the UCA-based joint OAM RadCom scheme. For the UCA-based RF point-to-point OAM communication system, a 2-D ESPRIT-based distance and AoA estimation method is first introduced, followed by an OAM reception scheme including the hybrid mechanical and electronic beam steering with the estimated AoA and the amplitude detection with the estimated distance. The proposed RF OAM communication scheme is extended to the RF OAM-MIMO system equipped with UCCAs. For the UCA-based RF point-to-multipoint OAM wireless backhaul network, an OAM-based multi-user distance and AoA estimation method is introduced, followed by a multi-user OAM preprocessing scheme. At last, the proposed methods are extended to the downlink multi-user OAM-MIMO wireless backhaul system equipped with UCCAs. Moreover, a novel HCCL structure is introduced to realize long-distance OAM transmission. For the UCA-based joint OAM RadCom scheme, an OAM-based 3-D super-resolution position estimation and rotation velocity detection method is introduced, and then the PCRB of the OAM-based estimates and the transmission rate of the integrated system are derived and analyzed. To achieve the best performance trade-off, the transmitted integrated OAM beams is optimized by means of an exhaustive search method. Finally, this book discusses future research directions to inspire further investigation in the field of RF OAM communications from different perspectives.
Author: Zhi Hao Jiang
Publisher: John Wiley & Sons
ISBN: 1119662826
Category : Science
Languages : en
Pages : 498
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Book Description
Discover the most recent advances in electromagnetic vortices In Electromagnetic Vortices: Wave Phenomena and Engineering Applications, a team of distinguished researchers delivers a cutting-edge treatment of electromagnetic vortex waves, including their theoretical foundation, related wave properties, and several potentially transformative applications. The book is divided into three parts. The editors first include resources that describe the generation, sorting, and manipulation of vortex waves, as well as descriptions of interesting wave behavior in the infrared and optical regimes with custom-designed nanostructures. They then discuss the generation, multiplexing, and propagation of vortex waves at the microwave and millimeter-wave frequencies. Finally, the selected contributions discuss several representative practical applications of vortex waves from a system perspective. With coverage that incorporates demonstration examples from a wide range of related sub-areas, this essential edited volume also offers: Thorough introductions to the generation of optical vortex beams and transformation optical vortex wave synthesizers Comprehensive explorations of millimeter-wave metasurfaces for high-capacity and broadband generation of vector vortex beams, as well as orbital angular momentum (OAM) detection and its observation in second harmonic generations Practical discussions of microwave SPP circuits and coding metasurfaces for vortex beam generation and OAM-based structured radio beams and their applications In-depth examinations and explorations of OAM multiplexing for wireless communications, wireless power transmission, as well as quantum communications and simulations Perfect for students of wireless communications, antenna/RF design, optical communications, and nanophotonics, Electromagnetic Vortices: Wave Phenomena and Engineering Applications is also an indispensable resource for researchers in academia, at large defense contractors, and in government labs.
Author: Long Li
Publisher: Springer Nature
ISBN: 9819979145
Category : Electromagnetism
Languages : en
Pages : 526
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Book Description
The subject of this book is the fast-developing area of research known as metamaterials/metasurfaces and some of their engineering applications. This book comprehensively presents the state of the art of metamaterials/metasurfaces from theory to applications. The theoretical side includes electrodynamics of left-handed medium, generalized Snell's law, digital coding metamaterials/metasurfaces, group theory of metamaterials, information metamaterials and metasurfaces, etc. On the application side, a wide range of design examples are discussed, including metamaterial antennas, electromagnetic interference, frequency selective surfaces, wireless power transmission and energy harvesting, cloaking and radar cross section reduction, orbital angular momentum, wireless communication, imaging, etc. The book provides researchers, engineers, and graduate students with a variety of new discoveries, results, information, and knowledge in the field of metamaterials and metasurfaces.
Author: Fajun Xiao
Publisher: Frontiers Media SA
ISBN: 2889712214
Category : Science
Languages : en
Pages : 89
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Book Description
Author: Kennis Chan
Publisher: CRC Press
ISBN: 1315690454
Category : Computers
Languages : en
Pages : 356
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Book Description
This volume contains the papers presented at the 2014 International Conference on Future Communication Technology and Engineering (FCTE2014), taking place in Shenzhen, China from 16-17 November 2014. Communication technologies are developing quickly and there are more possibilities for future communication technologies provided by the achievements made, rather than limitations. At the convention, innovative and inspiring ideas were presented; certain controversial topics were discussed (e.g. what are the most efficient/convenient methods for information communication) and what is the most probable prospect for future communication technology. It is difficult to make any definite conclusions from these presentations and discussions, but the desire and drive for improvement and development shown by the participants/authors are surely remarkable and respectable. In this book, 70 papers are included, chosen from hundreds of submissions contributed by scientists from various countries and regions, after careful reading and discussing by a team of reviewers. These papers cover almost every possible aspect of communication technology; including communication systems, automation and control engineering, electrical engineering, AI algorithms, signal processing, data mining, and knowledge-based systems.
Author: Fan Yang
Publisher: Cambridge University Press
ISBN: 1108470262
Category : Science
Languages : en
Pages : 489
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Book Description
Provides systematic coverage of the theory, physics, functional designs, and engineering applications of advanced electromagnetic surfaces.
Author: Xiaoming Chen
Publisher: John Wiley & Sons
ISBN: 111993253X
Category : Technology & Engineering
Languages : en
Pages : 404
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Book Description
Discover current design practices and performance metrics in this comprehensive guide to the latest methods of developing MIMO antenna systems Multiple-input multiple-output (MIMO) antenna systems use multiple sets of antennas to increase the capacity of a radio link, or to send and receive multiple simultaneous data signals over the same radio channel. It’s become an increasingly integral part of wireless and mobile data networks, from the earliest generations of wireless internet to cutting-edge 5G systems. The coming 6G networks will also rely on 6G antenna systems, making it all the more critical for the next generation of engineers and antenna designers to have a firm grasp of this foundational technology. MIMO Antenna Systems for 5G and Beyond offers a timely introduction to these systems and their design principles. Incorporating the latest designs and a comprehensive overview of current system configurations, it provides complete design procedures and performance metrics for MIMO systems. The result is a one-stop shop for all MIMO applications and wireless standards. MIMO Antenna Systems for 5G and Beyond readers will also find: The first book ever to cover MIMO design practices specific to 5G wireless communications—and beyond Detailed discussion of MIMO configurations including passive, reconfigurable, beamforming, and more Detailed illustrations and design files MIMO Antenna Systems for 5G and Beyond is ideal for practicing engineers, as well as researchers in wireless and radio engineering sectors.
Author: Bo Li
Publisher: Springer Nature
ISBN: 3030447510
Category : Computers
Languages : en
Pages : 654
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Book Description
This book constitutes the refereed post-conference proceedings of the Fifth International Conference on IoT as a Service, IoTaaS 2019, which took place in Xi’an, China, in November 2019. The 54 revised full papers were carefully reviewed and selected from 106 submissions. The papers contribute to the discussion on the challenges posed by Internet of Things (Io). The two technical tracks and three workshops deal in detail: Networking and Communications Technologies for IoT, IoT as a service, International Workshop on Edge Intelligence and Computing for IoT Communications and Applications, International Workshop on Wireless Automated Networking for Internet of Things, and International Workshop on Ubiquitous Services Transmission for Internet of Things.
Author: Ahmed Kishk
Publisher: BoD – Books on Demand
ISBN: 1803559276
Category : Technology & Engineering
Languages : en
Pages : 348
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Book Description
Microwave bands range from 300 MHz to 300 GHz of the electromagnetic spectrum. These signals can be used in communication, networking, astronomy, and biomedical engineering, among other fields. This book provides a comprehensive overview of the physics of microwave signals, techniques for modeling these signals, uses of these signals in various fields, and the underlying principles of some of the latest microwave devices currently available.
Author: Masafumi Kimata
Publisher: MDPI
ISBN: 3039360140
Category : Technology & Engineering
Languages : en
Pages : 124
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Book Description
Plasmonics and metamaterials are growing fields that consistently produce new technologies for controlling electromagnetic waves. Many important advances in both fundamental knowledge and practical applications have been achieved in conjunction with a wide range of materials, structures and wavelengths, from the ultraviolet to the microwave regions of the spectrum. In addition to this remarkable progress across many different fields, much of this research shares many of the same underlying principles, and therefore, significant synergy is expected. This Special Issue introduces the recent advances in plasmonics and metamaterials and discusses various applications, while addressing a wide range of topics, in order to explore the new horizons emerging for such research.
