Polarimetric Properties of Diffuse Scattering From Building Walls: Experimental Parameterization of a Ray-Tracing Model

Vitucci, Enrico M.; Mani, Francesco; Degli-Esposti, Vittorio; Oestges, Claude

doi:10.1109/tap.2012.2194683

Cited by 49 publications

(48 citation statements)

References 15 publications

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“…to the considered object) and in the forward half space (Tx and Rx located at opposite sides). Regarding the scattering pattern, several studies have proved that a single-lobe pattern centered on the direction of the specular reflection/transmission is often the best representation [9,11,18,19]. In summary, the power density p of DS in a generic scattering direction can be expressed in the following form [20]:…”

Section: Ray Tracing Modelmentioning

confidence: 99%

“…At UHF frequencies, S ranges from 0.2 to 0.4 in rural environment [11], while higher values, up to 0.6, have been estimated in more complex scenarios [19]. Typical values for α range between 2 and 4 [11,19], allowing to achieve satisfactory prediction accuracy with respect to narrowband and wideband measurement data. However, the reliability of such values also at millimeter frequencies still needs to be fully investigated.…”

Section: Ray Tracing Modelmentioning

confidence: 99%

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Item level characterization of mm-wave indoor propagation

Fuschini

Häfner

Zoli

et al. 2016

J Wireless Com Network

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According to the current prospect of allocating next generation wireless systems in the underutilized millimeter frequency bands, a thorough characterization of mm-wave propagation represents a pressing necessity. In this work, an "item level" characterization of radiowave propagation at 70 GHz is carried out. The scattering properties of several, different objects commonly present in indoor environment are investigated by means of measurements carried out in an anechoic chamber. The measured data have been also exploited to tune some parameters of a 3D ray tracing model.

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Section: Ray Tracing Modelmentioning

confidence: 99%

Section: Ray Tracing Modelmentioning

confidence: 99%

Item level characterization of mm-wave indoor propagation

Fuschini

Häfner

Zoli

et al. 2016

J Wireless Com Network

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“…Ray tracing (RT) is an alternative channel modeling technique, which evaluates all propagation paths as they interact with the surrounding environment based on the geometrical optics and uniform theory of diffraction [15]- [17]. Taking into consideration the most widely used centimeter-wave frequency range of wireless communication systems and the roughness of reflectors and scatterers in common rooms (especially in indoor environments such as industrial rooms), we consider diffuse scattering to be more important than coherent scattering from smooth surfaces (such as smooth walls), if not crucial.…”

Section: Introductionmentioning

confidence: 99%

Path-Loss Prediction for an Industrial Indoor Environment Based on Room Electromagnetics

Andersen

Cheffena

2017

IEEE Trans. Antennas Propagat.

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Abstract-A simple approach of path-loss and root mean square delay spread prediction for indoor propagation environment is developed based on the room electromagnetics theory. The indoor room environment is interpreted as a lossy cavity, which is characterized by the diffuse scattering components caused by the walls and surrounding obstacles, and a possible line-of-sight component. Simplicity, speed of the algorithm and good accuracy are among the advantages of this approach. To apply the method, it only requires the knowledge of the dimensions of the room and the reverberation time, which can be easily obtained from one measurement of the powerdelay-profile in the investigated environment. For experimental validation, path-loss measurements at two different transmission frequencies, and wideband measurements from 0.8 to 2.7 GHz were conducted in two rooms of an industrial environment. The theoretical results from the path-loss and root mean square delay spread prediction algorithm show good match with the measurement results.

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“…B. Keller founding the GTD on the following assumptions: 1. A diffracted ray is generated whenever a ray impinges on an edge (or on a vertex) 2. For every diffracted ray the Fermat's principle still holds These two statements leads to diffraction law : the angles between incident or diffracted rays and the edge satisfy Snell's law ( 1.2) applied to diffraction, where the transmission angle ϑ t becomes in fact the angle of diffraction ϑ d .…”

Section: Diffractionmentioning

confidence: 99%

“…In our context the contribution of diffuse scattering to the total field in a certain propagation scenario can have a significant impact on the radio link, above all in the case of non-line-of-sight (NLOS) propagation (cf. [1]- [2]), that's why an accurate and efficient model to include in simulation programs for radio coverage estimation is needed.…”

Section: Introductionmentioning

confidence: 99%