Read and Download eBook Full
Author: Yan Zhang
Publisher: CRC Press
Published: 2007-06-27
Total Pages: 480
ISBN-13: 1420042890
DOWNLOAD EBOOKThe rapid growth in mobile communications has led to an increasing demand for wideband high data rate communications services. In recent years, the Distributed Antenna System (DAS) has emerged as a promising candidate beyond 3G and 4G mobile communications. Distributed Antenna Systems: Open Architecture for Future Wireless Communications is
Author: Srividya Kannan Ramachandran
Publisher:
Published: 2015
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKThe regulatory treatment of Distributed Antenna Systems (DAS) has received scant academic attention despite DAS' growing commercial viability and widespread use. This paper analyzes regulatory classifications for wireless deployments involving DAS. It emphasizes that DAS deployments are not monolithic and, particularly, that the existing regulatory framework fails to satisfactorily account for the diversity in practical implementations of DAS networks. This paper explores three instances of problematic application of conventional regulations upon unique DAS designs. DAS antennas differ from traditional cell sites because of design intricacies such as limited on site processing and a smaller form factor. Accordingly, the FCC should revisit its decision to impose a back up power rule on DAS antenna nodes at the federal level. Second, this paper questions the wisdom of state regulations that uniformly impose common carrier obligations upon DAS providers. Third, this paper also propounds that the current state of DAS-level municipal regulations is fractured and suggests a unified regulatory approach extended to all municipalities. The case studies investigated in this paper suggest modifications to the existing regulatory framework to achieve essential policy goals without hindering the growth of the incipient DAS technology.
Author: Max Bramer
Publisher: Springer Nature
Published: 2019-12-09
Total Pages: 502
ISBN-13: 3030348857
DOWNLOAD EBOOKThis book constitutes the proceedings of the 39th SGAI International Conference on Innovative Techniques and Applications of Artificial Intelligence, AI 2019, held in Cambridge, UK, in December 2019. The 29 full papers and 14 short papers presented in this volume were carefully reviewed and selected from 49 submissions. The volume includes technical papers presenting new and innovative developments in the field as well as application papers presenting innovative applications of AI techniques in a number of subject domains. The papers are organized in the following topical sections: machine learning; knowledge discovery and data mining; agents, knowledge acquisition and ontologies; medical applications; applications of evolutionary algorithms; machine learning for time series data; applications of machine learning; and knowledge acquisition.
Author:
Publisher:
Published: 2015
Total Pages: 100
ISBN-13:
DOWNLOAD EBOOKAuthor: Simon R. Saunders
Publisher: John Wiley & Sons
Published: 2007-05-07
Total Pages: 547
ISBN-13: 0470848790
DOWNLOAD EBOOKAntennas and propagation are of fundamental importance to the coverage, capacity and quality of all wireless communication systems. This book provides a solid grounding in antennas and propagation, covering terrestrial and satellite radio systems in both mobile and fixed contexts. Building on the highly successful first edition, this fully updated text features significant new material and brand new exercises and supplementary materials to support course tutors. A vital source of information for practising and aspiring wireless communication engineers as well as for students at postgraduate and senior undergraduate levels, this book provides a fundamental grounding in the principles of antennas and propagation without excessive recourse to mathematics. It also equips the reader with practical prediction techniques for the design and analysis of a very wide range of common wireless communication systems. Including: Overview of the fundamental electromagnetic principles underlying propagation and antennas. Basic concepts of antennas and their application to specific wireless systems. Propagation measurement, modelling and prediction for fixed links, macrocells, microcells, picocells and megacells Narrowband and wideband channel modelling and the effect of the channel on communication system performance. Methods that overcome and transform channel impairments to enhance performance using diversity, adaptive antennas and equalisers. Key second edition updates: New chapters on Antennas for Mobile Systems and Channel Measurements for Mobile Radio Systems. Coverage of new technologies, including MIMO antenna systems, Ultra Wideband (UWB) and the OFDM technology used in Wi-Fi and WiMax systems. Many new propagation models for macrocells, microcells and picocells. Fully revised and expanded end-of-chapter exercises. The Solutions Manual can be requested from www.wiley.com/go/saunders_antennas_2e
Author: Morten Tolstrup
Publisher: John Wiley & Sons
Published: 2015-04-10
Total Pages: 609
ISBN-13: 1118913590
DOWNLOAD EBOOKWhy is high performance indoor wireless service needed, and how is it best implemented? As the challenge of providing better service and higher data speeds and quality for mobile applications intensifies, ensuring adequate in-building and tunnel coverage and capacity is increasingly important. A unique, single-source reference on the theoretical and practical knowledge behind indoor and tunnel radio planning, this book provides a detailed overview of mobile networks systems, coverage and capacity solutions with 2G, 3G and 4G cellular system technologies as a backdrop.
Author: Ami Hazani
Publisher:
Published: 2020-12-20
Total Pages: 26
ISBN-13:
DOWNLOAD EBOOKDistribution of management services in distributed antenna systems having a central unit and remote units configured to time-division multiplex (TDM) downlink and/or uplink management signals into time slots to form a TDM management frame signal. In this manner, collision will not occur between multiple management signals communicated over a common communications medium at the same time in the distributed antenna system. Collision detection and management mechanism can add design complexity, cost by requiring additional components, and require additional area on electronic boards. The TDM management frame signal may also be modulated at a carrier frequency before being combined with RF communications signals so that the combined signals are within a linear range of shared certain communications components to reduce cost and area.
Author: Lu Bai
Publisher:
Published: 2019
Total Pages:
ISBN-13:
DOWNLOAD EBOOKAuthor: Fei Tong
Publisher:
Published: 2005
Total Pages:
ISBN-13:
DOWNLOAD EBOOKAuthor: Kao-Cheng Huang
Publisher: John Wiley & Sons
Published: 2008-10-13
Total Pages: 296
ISBN-13: 0470712139
DOWNLOAD EBOOKComplete and comprehensive application-focused reference on millimetre wave antennas Millimetre Wave Antennas for Gigabit Wireless Communications covers a vast wealth of material with a strong focus on the current design and analysis principles of millimetre wave antennas for wireless devices. It provides practising engineers with the design rules and considerations required in designing antennas for the terminal. The authors include coverage of new configurations with advanced angular and frequency filtering characteristics, new design and analysis techniques, and methods for filter miniaturization. The book reviews up-to-date research results and utilizes numerous design examples to emphasize computer analysis and synthesis whilst also discussing the applications of commercially available software. Key Features: Advanced and up-to-date treatment of one of the fastest growing fields of wireless communications Covers topics such as Gigabit wireless communications and its required antennas, passive and active antenna design and analysis techniques, multibeam antennas and MIMO, IEEE 802.15.3c, WiMedia®, and advanced materials and technologies Offers a practical guide to integrated antennas for specific configurations requirements Addresses a number of complex, real-world problems that system and antenna engineers are going to face in millimetre-wave communications industry and provides solutions Contains detailed design examples, drawings and predicted performance This book is an invaluable tool for antenna professionals (engineers, designers, and developers), microwave professionals, wireless communication system professionals, and industries with microwave and millimetre wave research projects. Advanced students and researchers working in the field of millimetre wave engineering will also find this book very useful.
