This introduction takes a visionary look at ideal cognitive RADIOs (CRs) that inte- grate advanced software-defined RADIOs (SDR) with CR techniques to arrive at RADIOs that learn to help their user using computer vision, high-performance speech understanding, global positioning system (GPS) navigation, sophisticated adaptive networking, adaptive physical layer RADIO waveforms, and a wide range of machine learning processes.
标签： Technology Cognitive RADIO
上传时间： 2020-05-26
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The objective of this book is to allow the reader to predict the received signal power produced by a particular RADIO transmitter. The first two chapters examine propagation in free space for point-to-point and point-to-area transmission, respectively. This is combined with a dis- cussion regarding the characteristics of antennas for various purposes. In chapter 3, the effect of obstacles, whether buildings or mountains, is discussed and analytical methods, whereby the strength of a signal is the shadow of an obstacle can be predicted, are presented.
标签： Propagation Essentials RADIO Wave of
上传时间： 2020-05-27
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This book is intended for RF planners, to serve as a practical tool in their daily work designing indoor RADIO distribution systems. Based on feedback from readers of the first edition it was clear to me that I needed to add more material and in depth description of the basics of indoor systems based on using repeaters; this has grown into a new Section 4.7. There was also a strong demand to add more detail and dedicate a full chapter to RADIO planning in tunnels, for both rail and road tunnels; and redundancy principles in the design focus for solving the challenge of handover zones. An entire Chapter 11 is now dedicated to tunnel RADIO planning.
上传时间： 2020-05-27
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This book is intended for the RF planners, to serve as a practical tool in their daily work designing indoor RADIO distribution systems. It is not a complete book about all the deep aspects and corners of GSM, DCS, UMTS and HSPA networks, or all the core network systems. It is dedicated to the last 10–70 m of the network, the indoor air interface between the mobile user and the indoor mobile network.
标签： Practical Planning Indoor Guide RADIO GSM for
上传时间： 2020-05-27
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With this book at your fingertips, you, the reader, and I have something in common. We share the same interest in mobile RADIO channels. This area attracted my interest first in autumn 1992 whenImovedfromindustrytoacademiatofindachallengeinmylifeandtopursueascientific career. Since then, I consider myself as a student of the mobile RADIO channel who lives for modelling, analyzing, and simulating them. While the first edition of this book resulted from my teaching and research activities at the Technical University of Hamburg-Harburg (TUHH), Germany, the present second edition is entirely an outcome of my work at the University of Agder, Norway.
上传时间： 2020-05-30
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Mobile RADIO networks have risen in prominence over the last few years, primarily by the rise in popularity of cellular phones. It is important to recognise however that mobile RADIO technology fulfils a far wider range of applications that meet the demands of the modern world. These include the networks that allow police and emergency services to serve the public, military networks for operations and humanitarian support, and the mobile technol- ogies that are vital to the safety of aircraft.
标签： Network Mobile Design RADIO
上传时间： 2020-05-30
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RADIO propagation measurements and channel modelling continue to be of fundamental importance to RADIO system design. As new technology enables dynamic spectrum access and higher data rates, RADIO propagation effects such as shadowing, the presence of multipath and frequency dispersion are the limiting factors in the design of wireless communication systems. While there are several books covering the topic of RADIO propagation in various frequency bands, there appears to be no books on RADIO propagation measurements, which this book addresses at length.
标签： Propagation Measurement RADIO
上传时间： 2020-06-01
上传用户：shancjb
In a cellular communication system, a service area or a geographical region is divided into a number of cells, and each cell is served by an infrastructure element called the base station through a RADIO interface. Management of RADIO interface related resources is a critical design component in cellular communications.
标签： Management Resource RADIO
上传时间： 2020-06-01
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This book provides the essential design techniques for RADIO systems that operate at frequencies of 3 MHz to 100 GHz and which will be employed in the telecommunication service. We may also call these wireless systems, wireless being synonymous with RADIO, Telecommunications is a vibrant indus- try, particularly on the ‘‘RADIO side of the house.’’ The major supporter of this upsurge in RADIO has been the IEEE and its 802 committees. We now devote Ž . an entire chapter to wireless LANs WLANs detailed in IEEE 802.11. We also now have subsections on IEEE 802.15, 802.16, 802.20 and the wireless Ž . Ž metropolitan area network WMAN . WiFi, WiMax,, and UWB ultra wide- . band are described where these comparatively new RADIO specialties are demonstrating spectacular growth.
标签： Telecommunication Design System RADIO for
上传时间： 2020-06-01
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One of the prerequisites for the development of telecommunication services is the understanding of the propagation of the waves, either acoustic, electromagnetic, RADIO or light waves, which are used for the transmission of information. In this work, we shall limit ourselves to the study of RADIO waves: this term apply to the electromagnetic waves used in RADIO communications. Their frequency spectrum is very broad, and is divided into the following frequency bands : ELF waves (f < 3 kHz), VLF (3-30 kHz), LF waves (30-300 kHz), MF waves (300-3000 kHz), HF (3-30 MHz), VHF waves (30-300 MHz), UHF waves (300-3000 MHz), SHF waves (3-30 GHz), EHF waves (30-300 GHz) and sub- EHF waves (300-3000 GHz).
标签： Propagation RADIO Wave
上传时间： 2020-06-01
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