PROPAGATION LOSS ESTIMATION METHOD AND PROGRAM AND PROPAGATION LOSS ESTIMATION DEVICE

Title:

PROPAGATION LOSS ESTIMATION METHOD AND PROGRAM AND PROPAGATION LOSS ESTIMATION DEVICE

Document Type and Number:

Japanese Patent JP2013026884

Kind Code:

A

Abstract:

To cut down calculation amounts needed for estimating propagation losses in propagation paths above buildings.

Among buildings located on a straight line between a transmitter and a receiver, a building closest to the transmitter and a building closest to the receiver are determined. Then, a wall surface closest to the transmitter among the wall surfaces of the building closest to the transmitter and a wall surface closest to the receiver among the wall surfaces of the building closest to the receiver are determined. On the assumption that at the positions of the two wall surfaces there exist edges having the heights of the respective buildings, a first propagation loss in paths above the buildings from the transmitter to the receiver is estimated on the basis of a double knife edge diffraction loss model.

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Inventors:

SASAKI MOTOHARU
YAMADA WATARU
ITO TOSHIO
KITA NAOKI
SUGIYAMA TAKATOSHI

Application Number:

JP2011160751A

Publication Date:

February 04, 2013

Filing Date:

July 22, 2011

Export Citation:

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Assignee:

NIPPON TELEGRAPH & TELEPHONE

International Classes:

H04B17/00; H04W24/00

Attorney, Agent or Firm:

Masatake Shiga
Yasuhiko Murayama
Shu Oikawa

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