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Directional propagation channel estimation and analysis in urban environment with panoramic photography

Published online by Cambridge University Press:  07 February 2012

Jean-Marc Conrat*
Affiliation:
Orange Labs, Wireless Engineering Propagation, 6 av des Usines, F-90007 Belfort Cedex, France. Phone: +33 3 84 54 42 68.
Patrice Pajusco
Affiliation:
Télécom Bretagne Lab-STICC, Technopole Brest Iroise, CS83818, F-29238 Brest Cedex 03, France.
*
Corresponding author: J. M. Conrat Email: jeanmarc.conrat@orange.com

Abstract

This article aims to provide readers with a physical understanding of the propagation channel that is complementary to mathematical channel modeling. It presents an analysis of the directional propagation channel based on radiophotos. Radiophotos are graphical objects where directions of arrival are superimposed on three-dimensional (3D) panoramic photographs. The interaction between electro magnetic waves and the environment is immediately identified with these representations. This paper focuses on the direction of arrival at mobile in an urban macrocell environment. The first radiophoto collection illustrates the major propagation phenomena such as reflection, diffraction, or street canyoning. The second collection illustrates typical propagation channel profiles that are classified according to delay, azimuth, and elevation spread values. The paper also describes an original panorama-based method for estimating noise level in the azimuth–elevation domain.

Type
Industrial and Engineering Paper
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2012

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