An Introduction To Optical Wireless Mobile Communication
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An Introduction To Optical Wireless Mobile Communication
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Author : Harald Haas
language : en
Publisher: Artech House
Release Date : 2021-09-30
An Introduction To Optical Wireless Mobile Communication written by Harald Haas and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-30 with Technology & Engineering categories.
The use of the optical spectrum for wireless communications has gained significant interest in recent years. Applications range from low-rate simplex transmission links using existing embedded CMOS cameras in smartphones, referred to as optical camera communications (OCC), mobile light fidelity (LiFi) networking in homes, offices, urban and sub-sea environments to free-space gigabit interconnects in data centers and point-to-point long-range wireless backhaul links outdoors and in space. This exciting book focuses on the use of optical wireless communications (OWC) for mobile use cases. The book discusses existing conventional radio frequency (RF)-based wireless access technology and presents the challenges that can impact the requirements of the future wave of new wireless services in the context of artificial intelligence (AI) driven autonomous systems and machine-type communications. The relationship between visible light communications (VLC) and light fidelity (LiFi), is explored, and the major advantages of VLC and LiFi such as security and data density, and discuss existing research challenges are also introduced. Channel modeling techniques are provided for mobile multiuser scenarios, and will introduce key building blocks to achieve LiFi cellular networks achieving orders of magnitude improvements of area spectral efficiency compared to state-of-the-art. Challenges that arise from moving from a static point-to-point visible light link to a LiFi network that is capable of serving hundreds of mobile and fixed nodes are discussed. An overview of recent standardization activities and the commercialization challenges of this disruptive technology is also provided.
5g And Satellite Rf And Optical Integration
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Author : Geoff Varrall
language : en
Publisher: Artech House
Release Date : 2022-11-30
5g And Satellite Rf And Optical Integration written by Geoff Varrall and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-11-30 with Technology & Engineering categories.
5G and Satellite RF and Optical Integration, the latest ‘hot off the shelf’ groundbreaking book from Artech House authored by subject specialist Geoff Varrall is packed with essential time critical information. This updated edition has everything needed to know in order to understand the new world of terrestrial and non-terrestrial telecom technology. It analyzes the radio spectrum/band and technical specifications under consideration for 5G, along with the related performance, cost, and vertical market expectations. In addition, the book studies the cost of coexistence between 5G operators and other user communities' co-sharing spectrum, including GNSS; radio astronomers; radar; GSO, MEO, and LEO satellites in the Ku, K, and Ka bands and above; and satellite TV. Also covered is the role of free-space optical technology in 5G and satellite networks and what interference issues will arise from new band allocations. This includes co-shared allocations and how interference will be mitigated in and between next generation terrestrial and satellite 5G networks. The publication coincides with an inflection point where terrestrial, nonterrestrial, and RF and optical networks could be integrated in a financially useful way.
Signal Failure The Rise And Fall Of The Telecoms Industry
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Author : John Polden
language : en
Publisher: Artech House
Release Date : 2024-04-30
Signal Failure The Rise And Fall Of The Telecoms Industry written by John Polden and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-04-30 with Technology & Engineering categories.
Signal Failure: How the Telecoms Industry Lost its Way explores the history of the telecoms industry concentrating on the key period from 1950-2000, enabling practicing telecoms engineers to learn from the experiences and mistakes of the industry's history. The book arises from wider research into the history of the United Kingdom electronics industry. The lessons highlighted are very relevant now for any country that aims to grow by supporting technological industries. The book has relevance well beyond telecoms and in particular show the long timescales affecting technological trends and how these can sometimes conflict with the relatively short horizon of political decisions. The book is intended for anyone who is interested in how innovation affects the realities of technology entering the marketplace as well as the technology’s economic performance. Telecom professionals will find it gives background to the changes that happened in the UK industry. However, the book is also aimed at people who are interested in trends in the world-wide telecoms and other technology industries. Anyone involved with technological development will find the book relevant as it gives an insight into the issues that occur as significant disruptive technology enters a market.
Software Defined Radio Theory And Practice
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Author : John M. Reyland
language : en
Publisher: Artech House
Release Date : 2023-11-30
Software Defined Radio Theory And Practice written by John M. Reyland and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-11-30 with Technology & Engineering categories.
Software Defined Radio: Theory and Practice is a comprehensive resource covering software defined radio (SDR) from theory to practical applications. The book provides foundational knowledge for communication engineers and SDR enthusiasts. It covers digital modulation techniques, from basic to advanced techniques such as SC-OFDM and GMSK. The book then discusses RF channel impairments and strategies for eliminating them along with the use of channel equalization and modern frequency domain equalizers utilized in cellular telephony. Source and channel coding are introduced, and receiver analog design is thoroughly researched, comparing traditional and modern designs. The book includes important review topics such as complex numbers, fixed-point numeric formats, decision theory, Doppler, and more. Software Defined Radio: Theory and Practice offers a well-rounded approach to understanding and applying SDR, combining theoretical knowledge with practical exercises and simulations for a comprehensive learning experience.
Designing Rf Combining Systems For Shared Radio Sites
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Author : Ian Graham
language : en
Publisher: Artech House
Release Date : 2023-12-31
Designing Rf Combining Systems For Shared Radio Sites written by Ian Graham and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-12-31 with Technology & Engineering categories.
This book explores Radio Access Networks (RANs) within LMR systems, comprising base stations, mobile radios, and hand portable radios. These components facilitate communication among end users via a network of fixed base stations, antennas, and combining systems strategically placed across radio repeater sites throughout the coverage area. This resource also delves into the consequences of interference, highlighting the painstaking efforts required to diagnose and rectify interference issues through field testing and redesign. The central focus being on the design intricacies of base station antennas and combining systems at densely populated shared radio repeater sites. The book underscores how to identify potential sources of interference from co-located transmitters and receivers, effectively surveying sites to anticipate high-level interfering signals. This critical information forms the foundation for crafting base station antenna and combining systems that curtail interference, subsequently optimizing coverage and minimizing costs. Throughout its pages, the book lays out a detailed roadmap for designing LMR systems resilient to interference. By outlining essential principles and methodologies, the book guides practitioners in creating LMR networks that flawlessly align with end users' communication requirements. The resulting systems not only meet expectations but surpass them, offering the coverage area and communication quality demanded by public safety and utility organizations during critical operations. Ultimately, the book serves as an indispensable resource for engineers, designers, and professionals engaged in crafting LMR systems capable of delivering impeccable performance and reliability.
Optical Wireless Communications
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Author : Z. Ghassemlooy
language : en
Publisher: CRC Press
Release Date : 2019-04-30
Optical Wireless Communications written by Z. Ghassemlooy and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-04-30 with Technology & Engineering categories.
The 2nd Edition of Optical Wireless Communications: System and Channel Modelling with MATLAB® with additional new materials, is a self-contained volume that provides a concise and comprehensive coverage of the theory and technology of optical wireless communication systems (OWC). The delivery method makes the book appropriate for students studying at undergraduate and graduate levels as well as researchers and professional engineers working in the field of OWC. The book gives a detailed description of OWC, focusing mainly on the infrared and visible bands, for indoor and outdoor applications. A major attraction of the book is the inclusion of Matlab codes and simulations results as well as experimental test-beds for free space optics and visible light communication systems. This valuable resource will aid the readers in understanding the concept, carrying out extensive analysis, simulations, implementation and evaluation of OWC links. This 2nd edition is structured into nine compact chapters that cover the main aspects of OWC systems: History, current state of the art and challenges Fundamental principles Optical source and detector and noise sources Modulation, equalization, diversity techniques Channel models and system performance analysis Visible light communications Terrestrial free space optics communications Relay-based free space optics communications Matlab codes. A number of Matlab based simulation codes are included in this 2nd edition to assist the readers in mastering the subject and most importantly to encourage them to write their own simulation codes and enhance their knowledge.
Computer Science Engineering And Emerging Technologies
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Author : Rajeev Sobti
language : en
Publisher: CRC Press
Release Date : 2024-06-07
Computer Science Engineering And Emerging Technologies written by Rajeev Sobti and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-06-07 with Computers categories.
The year 2022 marks the 100th birth anniversary of Kathleen Hylda Valerie Booth, who wrote the first assembly language and designed the assembler and auto code for the first computer systems at Birkbeck College, University of London. She helped design three different machines including the ARC (Automatic Relay Calculator), SEC (Simple Electronic Computer), and APE(X). School of Computer Science and Engineering, under the aegis of Lovely Professional University, pays homage to this great programmer of all times by hosting “BOOTH100”—6th International Conference on Computing Sciences.
Future Optical Access Network
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Author : Santosh Kumar
language : en
Publisher: Springer Nature
Release Date : 2024-08-12
Future Optical Access Network written by Santosh Kumar and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-08-12 with Technology & Engineering categories.
This book provides detailed information on a low-cost, high-speed infrastructure to support applications and services based on 5G/6G, the Internet of Things (IoT), smart cities, and fiber-to-the-x (FTTX). The contents will serve as a ready reference for researchers, design engineers, network operators, and service providers, as well as graduating engineers interested in pursuing careers in the optical access network domain. The book is a road map for designing and developing access networks for a variety of applications, including smart cities and long-distance high-speed access networks. The book is useful for undergraduate, postgraduate, and research students, particularly in developing South-East Asian countries.
Next Generation Wireless Communications Using Radio Over Fiber
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Author : Nathan J. Gomes
language : en
Publisher: John Wiley & Sons
Release Date : 2012-08-15
Next Generation Wireless Communications Using Radio Over Fiber written by Nathan J. Gomes and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-08-15 with Technology & Engineering categories.
Taking a coherent and logical approach, this book describes the potential use of co-ordinated multipoint systems supported by radio over fiber. It covers an impressive breadth of topics, ranging from components, subsystem and system architecture, to network management and business perspectives. The authors show the importance of radio over fiber in eliminating or mitigating against the current, perceived barriers to the use of co-ordinated multipoint, and the drivers for standardisation activities in future mobile/wireless systems over the next few years. The book brings together the system concept for centralized processing, including what is required for co-existence with legacy wireless systems, the algorithms that can be used for improving wireless bandwidth utilization at physical and MAC layers and the radio over fiber network and link design necessary to support the wireless system. Other important research is also covered as the authors look at compensating for radio over fiber impairments and providing simple network management functions. A study of service provision and the business case for such a future wireless system is also fully considered. This book comes at an important time for future wireless systems with standardization of fourth generation wireless systems still ongoing. The content enables readers to make key decisions about future standardisation and their own research work. The business analysis also makes the book useful to those involved in deciding the future directions of telecoms organisations. This information will be core to their decision-making as it provides technical knowledge of the state-of-the-art but also system level assessments of what is possible in a business environment.
Biometric Recognition
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Author : Jie Zhou
language : en
Publisher: Springer
Release Date : 2018-08-08
Biometric Recognition written by Jie Zhou and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-08 with Computers categories.
The LNCS volume 10996 constitutes the proceedings of the 13th Chinese Conference on Biometric Recognition, held in Urumchi, China, in August 2018. The 79 regular papers presented in this book were carefully reviewed and selected from 112 submissions. The papers cover a wide range of topics such as Biometrics, Speech recognition, Activity recognition and understanding, Online handwriting recognition, System forensics, Multi-factor authentication, Graphical and visual passwords.