Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/53788
Title: Simulation of impulse response for indoor visible light communications using 3D CAD models
Authors: Perez Rodriguez, Silvestre
Perez Jimenez, Rafael 
Rodriguez Mendoza, Beatriz
Lopez Hernandez, Francisco Jose
Ayala Alfonso, Alejandro Jose
Keywords: Cad Models
Impulse Response
Parallelization
Ray-Tracing
Visible Light Communications
Issue Date: 2013
Publisher: 1687-1499
Journal: Eurasip Journal on Wireless Communications and Networking 
Abstract: In this article, a tool for simulating the channel impulse response for indoor visible light communications using 3D computer-aided design (CAD) models is presented. The simulation tool is based on a previous Monte Carlo ray-tracing algorithm for indoor infrared channel estimation, but including wavelength response evaluation. The 3D scene, or the simulation environment, can be defined using any CAD software in which the user specifies, in addition to the setting geometry, the reflection characteristics of the surface materials as well as the structures of the emitters and receivers involved in the simulation. Also, in an effort to improve the computational efficiency, two optimizations are proposed. The first one consists of dividing the setting into cubic regions of equal size, which offers a calculation improvement of approximately 50% compared to not dividing the 3D scene into sub-regions. The second one involves the parallelization of the simulation algorithm, which provides a computational speed-up proportional to the number of processors used.
URI: http://hdl.handle.net/10553/53788
ISSN: 1687-1499
DOI: 10.1186/1687-1499-2013-7
Source: Eurasip Journal On Wireless Communications And Networking[ISSN 1687-1499]
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