Optimised Scanning of a Visibility Graph Data Structure for Efficient Ray-Tracing

Mora, Fernando Cobos; Aveneau, Lilian

doi:10.1109/ecwt.2005.1617648

Cited by 10 publications

(12 citation statements)

References 6 publications

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“…To simulate this multi-path mechanism, a wave propagation simulator was developed in the SIC 1 laboratory [8]. This allows a deterministic prediction of radio channel behaviour.…”

Section: Modelling Of a Mimo Channelmentioning

confidence: 99%

“…Thus, the aim of this study is also to find the simplest environment modelling that can ensure a satisfactory level of accuracy while not involving excessive computation time. In this article, we consider a deterministic model based on an optimised 3D deterministic ray-tracing method [8,9] associated with characterisation software [10]. In order to provide statistically robust results, a large number of simulations are undertaken, the approach being considered as a semi-deterministic MIMO characterisation.…”

Section: Introductionmentioning

confidence: 99%

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Influence of the level of description of the indoor environment on the characteristic parameters of a MIMO channel

Pereira

Chartois

Pousset

et al. 2006

Comptes Rendus. Physique

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“…To simulate this multi-path mechanism, a wave propagation simulator was developed in the SIC 1 laboratory [8]. This allows a deterministic prediction of radio channel behaviour.…”

Section: Modelling Of a Mimo Channelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of the level of description of the indoor environment on the characteristic parameters of a MIMO channel

Pereira

Chartois

Pousset

et al. 2006

Comptes Rendus. Physique

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“…The simulator used for our investigations is a propagation software developped in our laboratory and based on an optimized 3D ray-tracing method [5] [6]. A characterization software developped in the laboratory [7] handles channel data and calculate channel characteristic parameters according to studied environments.…”

Section: Introductionmentioning

confidence: 99%

Impact of Indoor Environment Modeling on MIMO Channel Characterization

Pereira

Chartois

Pousset

et al. 2006

2006 European Conference on Wireless Technologies

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One of the important factors for deterministic channel propagation simulator using 3D ray-tracing methods is the environment modeling. Sensitivity of results depends on its description accuracy. This paper concerns the influence of the environment description precision on MIMO channel charaterization. Simulations have been performed in two unfurnished indoor environments. The first one is a floor, the second one is a hall with large dimensions. For these two cases, four description levels show effects of geometrical and electrical descriptions by studying the MIMO channel charateristic parameters like correlation and capacity. These last ones vary according to LOS and NLOS cases, antenna polarizations, spacing between antennas and number of transmitters and receivers.

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“…The received signal derives from the sum of all the paths. To simulate this multipath mechanism, a wave propagation simulator was developed in the SIC laboratory [7]. This allows a deterministic prediction of radio channel behavior.…”

Section: A Modeling Of a Mimo Channelmentioning

confidence: 99%

“…Thus, the aim of this study is also to find the simplest modeling approach that ensures a satisfactory level of accuracy while not involving excessive computation time. In this paper, we consider a deterministic model based on an optimized 3D deterministic ray-tracing 0018-926X/$25.00 © 2009 IEEE method [7], [8] associated with characterization software [9]. In order to provide statistically robust results, a large number of simulations are undertaken, the approach being considered as a semi-deterministic MIMO characterization.…”

mentioning

confidence: 99%

Sensitivity of the MIMO Channel Characterization to the Modeling of the Environment

Carlos

Yannis²,

Rodolphe³

et al. 2009

IEEE Trans. Antennas Propagat.

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Abstract-An important factor in electromagnetic wave propagation simulation, performed by a 3D ray-tracing method is the modeling of the environment. Results being sensitive to descriptive accuracy, this paper presents a study on the effect of indoor environment modeling precision on multiple input multiple output (MIMO) channel characterization. In order to give some diversity to the results, the investigation takes into account two unfurnished indoor environments. The first environment investigated is the entrance hall of a building at the University of Poitiers, while the second is a more confined environment and is represented by the first floor of the authors' laboratory. For these two indoor environments, four levels of description are proposed in order to establish the geometrical and electrical modeling impact on MIMO channel characterization. Results are obtained by analyzing the capacity, variation in correlation, multipath richness and eigenvalues in relation to the polarization, the presence of line-of-sight (LOS) or non-LOS (NLOS) configurations. The effects of the spacing between antennas and the number of transmitter and receiver antennas are also investigated.

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Optimised Scanning of a Visibility Graph Data Structure for Efficient Ray-Tracing

Cited by 10 publications

References 6 publications

Influence of the level of description of the indoor environment on the characteristic parameters of a MIMO channel

Influence of the level of description of the indoor environment on the characteristic parameters of a MIMO channel

Impact of Indoor Environment Modeling on MIMO Channel Characterization

Sensitivity of the MIMO Channel Characterization to the Modeling of the Environment

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