A practical aspect of over-rooftop multiple building forward diffraction from a low source

Wei Zhang, Jaakko Lähteenmäki, Pertti Vainikainen

Research output: Contribution to journalArticleScientificpeer-review

45 Citations (Scopus)

Abstract

A practical aspect of over-rooftop multiple-building forward diffraction from a low source is presented, including two formulations and an introduction of their application. In particular, the low-loss formulation for multiple diffraction exposes a factor that can account for strong over-rooftop radio propagation. Both low- and high-loss formulations take the advantages of the uniform geometrical theory of diffraction and physical optics (PO) and have the major advantage of significantly shortening the computing time over existing formulations. They behave well, particularly in and near the transition zone, and are written in explicit forms additionally for soft boundary that corresponds to vertical polarization transmission and reception in the horizontal plane. The application in the vertical plane for the total received signal strength prediction is introduced using the formulations for the hard boundary corresponding to vertical polarization transmission and reception.
Original languageEnglish
Pages (from-to)115-119
Number of pages5
JournalIEEE Transactions on Electromagnetic Compatibility
Volume41
Issue number2
DOIs
Publication statusPublished - 1999
MoE publication typeA1 Journal article-refereed

Fingerprint

Diffraction
formulations
diffraction
Polarization
Physical optics
Radio transmission
geometrical theory of diffraction
radio transmission
diffractive optics
physical optics
polarization
predictions

Keywords

  • microcellular mobile radio
  • multiple diffraction
  • radio propagation

Cite this

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title = "A practical aspect of over-rooftop multiple building forward diffraction from a low source",
abstract = "A practical aspect of over-rooftop multiple-building forward diffraction from a low source is presented, including two formulations and an introduction of their application. In particular, the low-loss formulation for multiple diffraction exposes a factor that can account for strong over-rooftop radio propagation. Both low- and high-loss formulations take the advantages of the uniform geometrical theory of diffraction and physical optics (PO) and have the major advantage of significantly shortening the computing time over existing formulations. They behave well, particularly in and near the transition zone, and are written in explicit forms additionally for soft boundary that corresponds to vertical polarization transmission and reception in the horizontal plane. The application in the vertical plane for the total received signal strength prediction is introduced using the formulations for the hard boundary corresponding to vertical polarization transmission and reception.",
keywords = "microcellular mobile radio, multiple diffraction, radio propagation",
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A practical aspect of over-rooftop multiple building forward diffraction from a low source. / Zhang, Wei; Lähteenmäki, Jaakko; Vainikainen, Pertti.

In: IEEE Transactions on Electromagnetic Compatibility, Vol. 41, No. 2, 1999, p. 115-119.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - A practical aspect of over-rooftop multiple building forward diffraction from a low source

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AU - Lähteenmäki, Jaakko

AU - Vainikainen, Pertti

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Y1 - 1999

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AB - A practical aspect of over-rooftop multiple-building forward diffraction from a low source is presented, including two formulations and an introduction of their application. In particular, the low-loss formulation for multiple diffraction exposes a factor that can account for strong over-rooftop radio propagation. Both low- and high-loss formulations take the advantages of the uniform geometrical theory of diffraction and physical optics (PO) and have the major advantage of significantly shortening the computing time over existing formulations. They behave well, particularly in and near the transition zone, and are written in explicit forms additionally for soft boundary that corresponds to vertical polarization transmission and reception in the horizontal plane. The application in the vertical plane for the total received signal strength prediction is introduced using the formulations for the hard boundary corresponding to vertical polarization transmission and reception.

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KW - radio propagation

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