A characterization of indoor space and frequency diversity by ray-tracing modeling

Corazza, G.E.; Degli-Esposti, Vittorio; Frullone, M.; Riva, G.

doi:10.1109/49.490226

Cited by 52 publications

(14 citation statements)

References 10 publications

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“…We have (13) By supposing that the chances of both positive and negative jumps are on the same footing, (14) we get (15) Unfortunately, a little thought shows that the above simple assumption may not always be true. In fact, examination of Fig.…”

Section: Distribution Ofmentioning

confidence: 95%

“…Typically, the statistical characterization of the multipath component parameters has been performed by fitting data between some suitable probability distribution family and experimental measurements [9]- [13]. It is also certainly possible to conceive ray launching simulations for any given scenario, but this may pose a formidable ray tracing problem even for modern computers [14], [15]. Moreover, it is widely accepted that general conclusions and guidelines cannot be easily reached only on the basis of numerical simulations, even though there is no doubt that they usually constitute important validation of the theory.…”

Section: Introductionmentioning

confidence: 99%

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Propagation without wave equation toward an urban area model

Franceschetti¹,

Maranò

Palmieri

1999

IEEE Trans. Antennas Propagat.

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Propagation in random media is a topic of great interest, whose application fields include, among others, the so-called last mile problem as well as the modeling of dense urban area radio communication channels. In this paper, a simple scenario for this issue is considered, with an optical-ray propagation across a medium of disordered lossless scatterers. The propagation medium behaves like a percolating lattice and the goal is to characterize statistically the propagation depth in the medium as a function of the density q of scatterers and of -the ray incidence angle. To the best of our knowledge, this approach is totally new. The problem is mathematically formulated as a random walk and the solutions are based on the theory of the martingale random processes. The obtained (approximate) analytical formulas have been validated by means of numerical simulations, demonstrating the applicability of the proposed model for a wide range of the global parameters q and . We believe that our results may constitute a promising first step toward the solution of more complicated propagation models and a wide class of communication problems.Index Terms-Last mile problem, propagation in random media, urban area communications.

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Section: Distribution Ofmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Propagation without wave equation toward an urban area model

Franceschetti¹,

Maranò

Palmieri

1999

IEEE Trans. Antennas Propagat.

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“…ARGIS embeds a 3D ray-tracing simulator [10]- [11], which supports a detailed description of the propagation environment (3D map of buildings, characterisation of their electromagnetic propertiesconductivity σ and permittivity ε −) and of the considered field sources (geometrical characteristics, height, power, radiation patterns, tilt, azimuth, etc.). Simulations have been performed in several real WiMAX sites, whose characteristics are described here below.…”

Section: Simulationsmentioning

confidence: 99%

“…A deeper investigation is then obtained through simulations (Section III), using the ARGIS tool [9], where a 3D ray tracing model is embedded [10] [11]. For one of the selected scenarios both wideband and narrow band measurements have also been performed (Section IV).…”

Section: Introductionmentioning

confidence: 99%

Effect of WiMAX system introduction over general public exposure: Simulation and measurements

Barbiroli

Carciofi

Guiducci

2010

21st Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications

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In this work the impact of WiMAX system is investigated in terms of electromagnetic field exposure evaluations for the general public. Several real scenarios are analyzed both with simulations and measurements, which give an overview of the impact of most commonly used Base Station equipment. The obtained results show that WiMAX systems are generally not critical in terms of compliance with exposure limits. However attention must be paid when site sharing with other electronic communications systems, such as GSM or UMTS, is taken into account, especially in Italy, where the regulation is particularly severe.

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“…This model has been proven to be valid for both indoor [2][3][4] and outdoor propagation environments [5]. However, the transition between outdoor and indoor propagation is a problem that remains unsatisfactory solved.…”

Section: Introductionmentioning

confidence: 99%

A Model for Transition Between Outdoor and Indoor Propagation

Prieto¹,

Reguero²,

Toledo³

et al. 2008

PIER

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Abstract-We present a novel outdoor-indoor radio wave propagation model. It predicts the electric field envelope Cumulative Distribution Function (CDF) in a room placed near a radio communication emitter. The experimental CDF obtained from the simulation, fits the experimental CDF obtained from a measurement campaign carried out over 19200 sampling points inside the room. The maximum deviation found between these CDFs is less than 1%. Kolmogorov-Smirnov test is employed to analyze the goodness of fit. P-values around 99% are reached. A comparison is made with other classical methods reported in the literature as ray-tracing (RT) and a hybrid method employing finite-difference time-domain (FDTD) together with RT. The proposed model significantly improves the results achieved in those previous investigations. Although we study the problem in three dimensions, the repetitive nature of the algorithm allows us to parallelize the computation process speeding the calculations.

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A characterization of indoor space and frequency diversity by ray-tracing modeling

Cited by 52 publications

References 10 publications

Propagation without wave equation toward an urban area model

Propagation without wave equation toward an urban area model

Effect of WiMAX system introduction over general public exposure: Simulation and measurements

A Model for Transition Between Outdoor and Indoor Propagation

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