[Influence de la modélisation des environnements indoor sur les paramètres caractéristiques du canal MIMO]
La modélisation des environnements est un facteur déterminant pour la prédiction de la propagation des ondes radio réalisée par une méthode à tracé de rayons 3D. Ainsi, ce travail traite de l'influence de la finesse de description d'environnements indoor sur la caractérisation de canaux MIMO (Multiple Input Multiple Output) simulés. Deux scènes sont considérées : la première est un milieu de type hall ; la seconde est un espace plus confiné représentant un étage. Pour ces deux environnements, trois niveaux de description tant géométrique qu'électrique sont proposés. Les résultats produits sont obtenus par analyse de l'évolution de la capacité du canal et de la corrélation entre les différentes liaisons radio en fonction de la polarisation, du caractère LOS ou NLOS des liaisons, de l'espacement entre antennes et du nombre d'antennes à l'émission et à la réception.
Modelling of the environment is an important factor in electromagnetic wave propagation simulation, performed by a 3D ray-tracing method. The aim of this work is to study the effect of indoor environment modelling accuracy on MIMO (Multiple Input Multiple Output) channel characterisation. The first of the two environments investigated is the hall of our building, while the second one is a more confined environment and represents the floor of our laboratory. For these two indoor environments, three description levels are proposed in order to establish geometrical and electrical modelling impact on MIMO channel characterisation. Results are obtained by analysing the capacity and variation in correlation in relation to the polarisation, the presence of LOS (Line of sight) or NLOS configurations, the spacing between antennae and the number of transmitter and receiver antennae.
Mot clés : Modélisation d'environnement, Tracé de rayon 3D, Polarisation, Caractérisation du canal MIMO
Carlos Pereira 1 ; Yannick Chartois 1 ; Yannis Pousset 1 ; Rodolphe Vauzelle 1
@article{CRPHYS_2006__7_7_715_0,
author = {Carlos Pereira and Yannick Chartois and Yannis Pousset and Rodolphe Vauzelle},
title = {Influence of the level of description of the indoor environment on the characteristic parameters of a {MIMO} channel},
journal = {Comptes Rendus. Physique},
pages = {715--725},
publisher = {Elsevier},
volume = {7},
number = {7},
year = {2006},
doi = {10.1016/j.crhy.2006.07.013},
language = {en},
}
TY - JOUR AU - Carlos Pereira AU - Yannick Chartois AU - Yannis Pousset AU - Rodolphe Vauzelle TI - Influence of the level of description of the indoor environment on the characteristic parameters of a MIMO channel JO - Comptes Rendus. Physique PY - 2006 SP - 715 EP - 725 VL - 7 IS - 7 PB - Elsevier DO - 10.1016/j.crhy.2006.07.013 LA - en ID - CRPHYS_2006__7_7_715_0 ER -
%0 Journal Article %A Carlos Pereira %A Yannick Chartois %A Yannis Pousset %A Rodolphe Vauzelle %T Influence of the level of description of the indoor environment on the characteristic parameters of a MIMO channel %J Comptes Rendus. Physique %D 2006 %P 715-725 %V 7 %N 7 %I Elsevier %R 10.1016/j.crhy.2006.07.013 %G en %F CRPHYS_2006__7_7_715_0
Carlos Pereira; Yannick Chartois; Yannis Pousset; Rodolphe Vauzelle. Influence of the level of description of the indoor environment on the characteristic parameters of a MIMO channel. Comptes Rendus. Physique, Volume 7 (2006) no. 7, pp. 715-725. doi : 10.1016/j.crhy.2006.07.013. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2006.07.013/
[1] Empirical characterization of wideband indoor radio channel at 5.3 GHz, IEEE Transactions on Antennas and Propagation, Volume 49 ( August 2001 ) no. 8, pp. 1192-1205
[2] A space–time correlation model for multielement antenna systems in mobile fading channels, IEEE Journal on Selected Areas in Communications, Volume 20 (2002), pp. 413-425
[3] Experimental characterization of the MIMO wireless channel: Data acquisition and analysis, IEEE Transactions on Wireless Communications, Volume 52 (2003) no. 4, pp. 507-514
[4] A space–time correlation model for multielement antenna systems in mobile fading channels, IEEE Journal on Selected Areas in Communications, Volume 20 (2002) no. 6, pp. 1227-1239
[5] Effect of antenna polarisation on the capacity of a multiple element system in an indoor environment, IEEE Journal on Selected Areas in Communications, Volume 50 (2002) no. 5, pp. 591-599
[6] Complex-wall effect on propagation characteristics and MIMO capacities for an indoor wireless communication environment, IEEE Transactions on Antennas and Propagation, Volume 52 (2004) no. 4, pp. 914-922
[7] A sensitivity study for an indoor channel, Annals of Telecommunications, Volume 59 (2004) no. 5–6, pp. 713-730
[8] F. Mora, L. Aveneau, Optimised scanning of a visibility graph data structure for efficient ray-tracing, in: ECWT2005, Paris, October 2005
[9] F. Escarieu, Y. Pousset, L.Aveneau, R. Vauzelle, Outdoor and indoor channel characterization by a 3D simulation software, in: PIMRC '2001, September 2001
[10] Y. Chartois, Y. Pousset, R. Vauzelle, A SISO and MIMO radio channel characterization with a 3D ray tracing propagation model in urban environment, in: ECPS, March 2005
[11] Wikipedia, The free encyclopedia http://en.wikipedia.org/wiki/Covariance_matrix (Covariance matrix)
[12] C.E. Shannon, A mathematical theory of communication, Technical journal, AT & T Bell Labs, October 1948
[13] Breaking the barriers of Shannon's capacity: An overview of MIMO wireless system, Telektronikk Telenor Journal ( January 2002 )
[14] F. Escarieu, Etude de la propagation dans les milieux indoor (intérieur des bâtiments) autour de 2 GHz, These, Decembre 2002
[15] Capacity scaling in MIMO wireless systems under correlated fading, IEEE Transactions on Information Theory, Volume 48 (2002) no. 3, pp. 637-650
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