ADVANCED TECHNOLOGIES AND WIRELESS NETWORKS BEYOND 4G 2020 <JW>

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【簡介】 A guide to the physical and mathematical-statistical approaches to personal and mobile wireless communication networks Wireless Networks Technologies offers an authoritative account of several current and modern wireless networks and the corresponding novel technologies and techniques. The text explores the main aspects of the "physical layer" of the technology. The authors—noted experts on the topic—examine the well-known networks (from 2-G to 3-G) in a historical perspective. They also illuminate the "physical layer" of networks while presenting polarization diversity analysis and positioning of any subscriber located in areas of service both for land-to-land and land-to-atmosphere communication links. The book includes clear descriptions of planning techniques for different integrated femto/pico/micro/macrocell deployments. The authors also examine new technologies of time and frequency dispersy and multiple-input and multiple-output (MIMO) modern network design in space and time domains. In addition, the text contains a discussion of a MIMO network based on multi-beam adaptive antennas. This important book: Provides an examination of current and modern wireless networks Describes various techniques of signal data capacity and spectral efficiency based on the universal stochastic approach Explains how usage of MIMO systems with adaptive multi-beam antennas increase the grade of service and quality of service of modern networks beyond 4-G Provides comparative analysis of depolarization effects and the corresponding path loss factor for rural, mixed residential, suburban, and urban land areas Written for students and instructors as well as designers and engineers of wireless communications systems, Wireless Networks Technologies offers a combination of physical and mathematical-statistical approaches to predict operational parameters of land-to-land and land-to-atmosphere personal and mobile wireless communication networks. 【目錄】

Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications

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【簡介】 Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications Reviews advances in the design and deployment of antenna arrays for future generations of wireless communication systems, offering new solutions for the telecommunications industry Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications addresses the challenges in designing and deploying antennas and antenna arrays which deliver 6G and beyond performance with high energy efficiency and possess the capability of being immune to interference caused by different systems mounted on the same platforms. This timely and authoritative volume presents innovative solutions for developing integrated communications networks of high-gain, individually-scannable, multi-beam antennas that are reconfigurable and conformable to all platforms, thus enabling the evolving integrated land, air and space communications networks. The text begins with an up-to-date discussion of the engineering issues facing future wireless communications systems, followed by a detailed discussion of different beamforming networks for multi-beam antennas. Subsequent chapters address problems of 4G/5G antenna collocation, discuss differentially-fed antenna arrays, explore conformal transmit arrays for airborne platforms, and present latest results on fixed frequency beam scanning leaky wave antennas as well as various analogue beam synthesizing strategies. Based primarily on the authors’ extensive work in the field, including original research never before published, this important new volume: Reviews multi-beam feed networks, array decoupling and de-scattering methods Provides a systematic study on differentially fed antenna arrays that are resistant to interference caused by future multifunctional/multi-generation systems Features previously unpublished material on conformal transmit arrays based on Huygen’s metasufaces and reconfigurable leaky wave antennas Includes novel algorithms for synthesizing and optimizing thinned massive arrays, conformal arrays, frequency invariant arrays, and other future arrays Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications is an invaluable resource for antenna engineers and researchers, as well as graduate and senior undergraduate students in the field. 【目錄】

Spectrum Requirement Planning in Wireless Communications: Model and Methodology for IMT - Advanced

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【簡介】 Presents the model and methodology, applied by ITU-R WRC’07, to calculate the spectrum requirement Spectrum Requirement Planning in Wireless Communications: Model and Methodology for IMT-Advanced is a self-contained “handbook” of the models and methodologies used for the spectrum requirement calculation for IMT-Advanced systems, as well as for the predecessor IMT-2000 systems. The reader will learn how the spectrum requirement is calculated for real systems that prevail worldwide. The book also provides the basis on which to develop advanced methodologies for yet future systems, as the spectrum regulation will continue in the future. Spectrum Requirement Planning in Wireless Communications: Model and Methodology for IMT-Advanced Provides the reader with information on how the spectrum requirement is calculated for real systems that prevail worldwide Contains useful tables and examples such as flowchart of the methodology Introduces definitions of service category and radio environment, the process of distributing traffic to radio environments, and the method to calculate the required spectrum Applies queueing and loss models for the calculation of required system capacity Covers utilization of radio frequencies, market data, spectrum requirement calculation methods for IMT-2000 and for IMT-Advanced systems Instructs how to use the calculation tool package Comes with an accompanying website with the downloadable tool applied by ITU-R WRC’07 for making decisions on spectrum regulation for mobile systems This book serves as an invaluable guide to engineers in mobile phone companies, system design engineers, operator system engineers and other specialists dealing with mobile system planning and development. It is also of great interest to researchers and graduate students in the fields of applied probability theory, operations research, telecommunications, and mobile networks engineering. 【目錄】 About the Series Editors. Preface. 1 Introduction (Bernhard H. Walke and Hitoshi Yoshino). 1.1 Trends inMobileCommunication. 1.1.1 Mobileapplicationsandservices. 1.1.2 Radio interface technologies. 1.1.3 Standardization. 1.2 Trends inSpectrumUsage. 1.2.1 Physicalpropertiesof radiospectra. 1.2.2 Spectrumallocationandidentification. 1.3 SpectrumAllocation:Why and How. 2 Utilization of Radio Frequencies (Hitoshi Yoshino, Naoto Matoba, Pekka Ojanen and Bernhard H. Walke). 2.1 SpectrumUsageOverview. 2.2 Spectrum Management by ITU. 2.3 Radio Communication Services. 2.4 Radio Communication Systems. 3 Spectrum Requirement Calculation for IMT-2000 (Hideaki Takagi). 3.1 Model. 3.2 Input Parameters. 3.3 Methodology. 3.4 Sequel to the Story. 4 Spectrum Requirement Calculation for IMT-Advanced (Marja Matinmikko, J¨org Huschke, Tim Irnich, Naoto Matoba, Jussi Ojala, Pekka Ojanen, Hideaki Takagi, Bernhard H. Walke and Hitoshi Yoshino). 4.1 Overview. 4.2 Models and Input Parameters. 4.3 Methodology. 4.4 Summary of Methodology for IMT-Advanced. 5 Calculation Tool Package (Marja Matinmikko, Jörg Huschke and Jussi Ojala). 5.1 Description and Use of Software Tool. 5.2 Front Sheet of Software Tool. 5.3 Inputs to Software Tool. 5.4 IntermediateCalculationSteps. 5.5 Outputs from Software Tool. 6 Market Data (Marja Matinmikko and Mitsuhiro Azuma). 6.1 Collection of Market Data. 6.2 Use of Market Parameters in the Methodology. 6.3 AnalysisofCollectedMarketData. 6.4 Example Input Market Parameter Value Set. 7 Radio-Related Input Parameters (Marja Matinmikko, Pekka Ojanen and Jussi Ojala). 7.1 RAT Group Approach. 7.2 Use of Radio Parameters in the Methodology. 7.3 Example Input Radio Parameter Value Set. 8 Numerical Examples (Tim Irnich, Marja Matinmikko, Jussi Ojala and Bernhard H. Walke). 8.1 Packet Size Statistics and QoS Requirements. 8.2 Traffic Demand Derived from Market Data. 8.3 TrafficDistribution Ratios . 8.4 Offered Traffic per RAT Group and Radio Environment. 8.5 Required System Capacity. 8.6 Required Spectrum. 9 Capacity Dimensioning to Meet Delay Percentile Requirements (Tim Irnich and Bernhard H. Walke). 9.1 Delay Percentile Evaluation. 9.2 ServiceTimeDistributionin IP-BasedCommunicationSystems. 9.3 Waiting Time Distribution in M/G/1 Queues. 9.4 Delay DF Approximation. 9.5 Accuracy of Gamma and H2 Approximations. 9.6 Impact of Percentile Requirements on System Capacity. 9.7 Conclusion. 10 Epilog: Result ofWRC-07 (Hitoshi Yoshino). Appendices. Appendix A Derivation of Formulas by Queueing Theory (Hideaki Takagi). A.1 Erlang-B Formula for a Loss System. A.2 Erlang-C Formula for a Delay System. A.3 Multidimensional Erlang-B Formula. A.3.1 Two classes of calls with single server occupation. A.3.2 Several classes of calls with multiple server occupation. A.4 M/G/1 Nonpreemptive Priority Queue. Appendix B Example Market Study Parameter Values. Appendix C List of Acronyms and Symbols. C.1 Acronyms. C.2 Symbols. Appendix D ITU-R Documents and Web Sites. D.1 ITU-R Recommendations. D.2 ITU-R Reports. D.3 Other ITU-RDocuments. D.4 WebSites. Bibliography. Index.