Efficient and fast Gaussian beam-tracking approach for indoor-propagation modeling

Tahri, R.; Fournier, David; Collonge, Sylvain; Zaharia, Gheorghe; Zein, Ghaïs El

doi:10.1002/mop.20829

Cited by 10 publications

(5 citation statements)

References 17 publications

(39 reference statements)

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“…Alternatively, the sub-GB coefficients are directly weighted by the reflection and transmission coefficients of the FSS and the field on the output plane can then be calculated by superposing all the reflected or transmitted sub-GBs, without the need of inversed FFT process. In addition, the attraction of the sub-GBs technique is that the number of beams needed to trace could be reduced in contrast to the number of rays in plane wave expansion [16,17], which could improve the algorithm efficiency.…”

Section: Gaussian Beam Analysis Methodsmentioning

confidence: 99%

Numerical and Experimental Verification of a 3D Quasi-Optical System

Liu

Hai

et al. 2015

International Journal of Antennas and Propagation

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A modular and efficient Gaussian beam (GB) analysis method, incorporating frame-based Gabor transformation, GB reflection, and a 3D GB diffraction technique, was developed to analyze both the reflectors and frequency selective surface (FSS) in quasioptical (QO) system. To validate this analysis method, a 3D dual-channel QO system operating at 183 and 325 GHz was designed and tested. The proposed QO system employs two-layer structure with a FSS of perforated hexagonal array transmitting the 325 GHz signal on the top layer while diverting the 183 GHz signal to the bottom layer. Measured results of the system demonstrate that the agreement can be achieved down to −30 dB signal level for both channels in the far field pattern. The discrepancy between the calculation and measurement is within 2 dB in the main beam region (2.5 times −3 dB beamwidth), verifying the effectiveness and accuracy of the proposed method.

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Section: Gaussian Beam Analysis Methodsmentioning

confidence: 99%

Numerical and Experimental Verification of a 3D Quasi-Optical System

Liu

Hai

et al. 2015

International Journal of Antennas and Propagation

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“…As described in (R. Tahri et al, 2005), two deterministic simulation tools have been used to complement the experimental characterization: a ray-tracing tool and a 3 D Gaussian Beam Tracking (GBT) technique. The GBT method based on Gabor frame approach is particularly well suited to high frequencies and permits a collective treatment of rays which offers significant computation time efficiency.…”

Section: Deterministic Simulations Tool Of the 60 Ghz Radio Channelmentioning

confidence: 99%

Advanced Trends in Wireless Communications

Khatib¹

2011

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The visible light communication (VLC) refers to the communication technology which utilizes the visible light source as a signal transmitter, the air as a transmission medium, and the appropriate photodiode as a signal receiving component. The visible light communication technology has a short history compared with other communication technology, for example, public old telephone service, Ethernet, high-speed optical communication, wireless cellular communication, IrDA, etc. It is due to that the development and commercialization of light emitting diodes (LEDs) which emits the light in visible wavelength range have been successful for illumination in recent decade. It is said that the illumination LEDs will replace the conventional illumination lightings such as incandescent bulbs and fluorescent lamps since they have the characteristics of long lifetime, mercury free, color mixing, fast switching, etc. By utilizing the advantage of fast switching characteristic of the LEDs compared with the conventional lightings, i.e., modulating the LED light with the data signal, the LED illumination can be used as a communication source. Since the illumination exists everywhere, it is expected that the LED illumination device will act as a lighting device and a communication transmitter simultaneously everywhere in a near future. There have been researches on application of visible LEDs. The audio system using visible light LEDs was reported in Hong Kong by G. Pang et al. (Pang, 1999) and the visible light communication with the power line communication was reported in Japan by Komine et al. It can be considered that the active research has been started since 2005. Still the VLC system is not close to commercialization, but in the basic research. From the above technical backgrounds, the technical issues will be described in system viewpoint with the recent developments and research results. The VLC link configuration is explained in Section 2. The VLC transmitter (Section 3) and the VLC receiver (Section 4) are described. Section 5 is about VLC considerations including LED characteristics and data format considering the illumination perspectives, including the international efforts on standardization for helping commercialization. The chapter will be concluded with Section 6. 2. System description 2.1 Channel configuration The optical wireless communication (OWC) is a general term for explaining wireless communication with optical technology. Usually, OWC includes infrared (IR) communication for short range (Knutson, 2004) and free-space optics (FSO) communication (FSO website) for longer range. Physical limitations on wireless communication channels impose huge challenges to reliable communication. Bandwidth limitations, propagation loss, noise and interference make the wireless channel a narrow pipe that does not readily accommodate rapid flow of data. Thus, researches aim to design systems that are suitable to operate in such channels, in order to have high performance quality of service. Also, the mobility of the commu...

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“…In order to avoid these problems, some recent approaches use different basis functions involving Gaussian Beams for tracking fields in complex environments [1][2][3][4]. In comparison to classical ray techniques, the GB set enables one to avoid caustic problems and reduces the number of launched elements.…”

Section: Introductionmentioning

confidence: 99%

Uniform Analytic Scattered Fields of a Pec Plate Illuminated by a Vector Paraxial Gaussian Beam

Hillairet¹,

Sokoloff²,

Bolioli³

2009

PIER B

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Abstract-A uniform asymptotic expression is developed for calculating the fields scattered by a perfect electrically conducting plate illuminated by a vectorial gaussian beam. This expression has been obtained under the physical optics approximation using the saddle point method. Some numerical applications are presented and compared with some reference methods such as a MoM. A brief parameter study of this solution is presented.

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Efficient and fast Gaussian beam-tracking approach for indoor-propagation modeling

Abstract: A Gaussian beam-tracking

Cited by 10 publications

References 17 publications

Numerical and Experimental Verification of a 3D Quasi-Optical System

Numerical and Experimental Verification of a 3D Quasi-Optical System

Advanced Trends in Wireless Communications

Uniform Analytic Scattered Fields of a Pec Plate Illuminated by a Vector Paraxial Gaussian Beam

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