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Author: Homayoun Hashemi
Publisher:
ISBN:
Category :
Languages : en
Pages : 146
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Book Description
Author: Homayoun Hashemi
Publisher:
ISBN:
Category :
Languages : en
Pages : 146
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Book Description
Author: Sana Salous
Publisher: John Wiley & Sons
ISBN: 1118502329
Category : Technology & Engineering
Languages : en
Pages : 423
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Book Description
While there are numerous books describing modern wireless communication systems that contain overviews of radio propagation and radio channel modelling, there are none that contain detailed information on the design, implementation and calibration of radio channel measurement equipment, the planning of experiments and the in depth analysis of measured data. The book would begin with an explanation of the fundamentals of radio wave propagation and progress through a series of topics, including the measurement of radio channel characteristics, radio channel sounders, measurement strategies, data analysis techniques and radio channel modelling. Application of results for the prediction of achievable digital link performance would be discussed with examples pertinent to single carrier, multi-carrier and spread spectrum radio links. This work would address specifics of communications in various different frequency bands for both long range and short range fixed and mobile radio links.
Author: Anita G. Longley
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 60
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Book Description
Author: Theodore S. Rappaport
Publisher: Cambridge University Press
ISBN: 1009100718
Category : Computers
Languages : en
Pages : 305
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Book Description
A complete guide for creating accurate channel-propagation measurements and channel models at millimeter-wave and sub-terahertz bands. Including examples, this book provides practical guidance on RF propagation channels, including measurement system verification and an overview of current and future channel models for these frequencies.
Author: Hirofumi Suzuki
Publisher:
ISBN:
Category :
Languages : en
Pages : 478
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Book Description
Author: Purnima K Sharma
Publisher: Anchor Academic Publishing
ISBN: 3960671261
Category : Technology & Engineering
Languages : en
Pages : 237
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Book Description
Wireless communication is one of the most dynamic and vibrant areas of technology development in the communication field today. It has been found that severe climatic conditions disturb the propagation of electromagnetic signals at higher frequencies (greater than 30 MHz). The disturbance is mainly due to molecular absorption by oxygen for frequencies ranging between 60 and 118 GHz and due to water vapour in 22, 183 and 325 GHz bands. Rain and fog has the most significant impact, since the size of the rain drops is of the order of the wavelength of the transmitted signal. This results in energy absorption by the rain drops themselves, and as a secondary effect energy is scattered by the drops. The frequency selective absorption characteristics of the atmosphere can be approximated by a transfer function. In most of the practical channels when the signal propagates through the atmosphere the effect of many factors on the signal has to be considered along with the free space propagation channel assumption. The main objective of this study is, therefore, to find out whether, and how, the different climatic conditions are influencing radio wave propagation in GSM frequency bands in general and in Narnaul, Haryana (India) in particular. To carry out this investigation, the records of radio wave propagation along with path loss during different climatic conditions have been analyzed. On the strength of these analyses, a propagation path loss model has been developed by proposing suitable correction factors due to different climatic conditions. The validation of this developed path loss model has been verified by taking reference models and by applying practically in different urban areas. The effect of these climatic conditions on the link budget has also been analyzed.
Author: Sana Salous
Publisher: John Wiley & Sons
ISBN: 0470751843
Category : Technology & Engineering
Languages : en
Pages : 423
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Book Description
While there are numerous books describing modern wireless communication systems that contain overviews of radio propagation and radio channel modelling, there are none that contain detailed information on the design, implementation and calibration of radio channel measurement equipment, the planning of experiments and the in depth analysis of measured data. The book would begin with an explanation of the fundamentals of radio wave propagation and progress through a series of topics, including the measurement of radio channel characteristics, radio channel sounders, measurement strategies, data analysis techniques and radio channel modelling. Application of results for the prediction of achievable digital link performance would be discussed with examples pertinent to single carrier, multi-carrier and spread spectrum radio links. This work would address specifics of communications in various different frequency bands for both long range and short range fixed and mobile radio links.
Author: Anita G. Longley
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 49
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Book Description
Author: Hirofumi Suzuki
Publisher:
ISBN:
Category :
Languages : en
Pages : 506
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Book Description
Author: Homayoun Hashemi
Publisher:
ISBN:
Category : Radio frequency modulation
Languages : en
Pages : 792
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Book Description
