Radiowave retransmission in confined areas using radiating cable: theoretical and experimental study

Liénard, M.; Mariage, Philippe; Vandamme, Johan; Degauque, P.

doi:10.1109/vetec.1994.345229

Cited by 5 publications

(10 citation statements)

References 1 publication

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“…Equation (11) Equation (12) Equation ( Table 4 shows the mean and standard deviation of the error between measurement values and predicted values, which are calculated with (11), (12), (13) and 20% of data set (model tuning).…”

Section: Resultsmentioning

confidence: 99%

“…Each Received power (calculated and measurement values) along a vertical route at 2100 MHz. graph plots the received power calculated with (11), (12) and (13). Measurement received power (CDF) is also plotted.…”

Section: Resultsmentioning

confidence: 99%

“…The program is run several times solving equations of Table 1 with different values of the empirical coefficients (R 1 , R 2 , T 1 , T 2 and K), the values began from 0.01 and were increased in 0.01 steps, until a value is reached that gives a mean error near zero. Table 3 shows the mean and standard deviation of the total error between measurement values and calculated values, which are computed with (11), (12), (13) and 40% of data set (model tuning). Table 3.…”

Section: Model Calibrationmentioning

confidence: 99%

“…The disadvantage of this approach is of the need for wall and building materials descriptions, accurate geometry and furniture/clutter, and excessive computational time for most practical design approaches. On the other hand, semi-empirical approaches to compute the radiated field of a radiating cable in indoor environments are reported by M. Liénard, et al in [13], and K. Carter [14]. In [13], the authors describe a parametric study in the frequency domain in order to characterize the transmission channel in terms of field amplitude variation and signal fading.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, semi-empirical approaches to compute the radiated field of a radiating cable in indoor environments are reported by M. Liénard, et al in [13], and K. Carter [14]. In [13], the authors describe a parametric study in the frequency domain in order to characterize the transmission channel in terms of field amplitude variation and signal fading. In order to validate this study, a straight length of radiating cable was installed in a tunnel and a series of measurements in the frequency range of 420-925 MHz were performed.…”

Section: Introductionmentioning

confidence: 99%

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Indoor Propagation Modeling for Radiating Cable Systems in the Frequency Range of 900-2500 MHZ

Seseña-Osorio¹,

Aragón‐Zavala²,

Zaldívar-Huerta³

et al. 2013

PIER B

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Abstract-The aim of this paper is to propose and evaluate a semiempirical propagation modeling for radiating cable used in indoor environments. This propagation modeling takes into consideration propagation mechanisms such as reflections, penetration loss and cable termination that result from a particular environment, as well as specific cable paths that actual propagation models for radiating cable systems have not considered. The proposed modeling is carried out using three different propagation models and has been experimentally validated by sets of measurements performed in a university building in the frequency range from 900 MHz to 2.5 GHz. A careful selection of the data sets validates the robustness of the proposed model. The results show a mean of the error less than 1 dB while the standard deviation is between 2.2 dB and 4.6 dB in all cases. To the best of our knowledge, this is the first time such a robust modeling for radiating cable operating between 900 MHz to 2.5 GHz has been presented.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Model Calibrationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Indoor Propagation Modeling for Radiating Cable Systems in the Frequency Range of 900-2500 MHZ

Seseña-Osorio¹,

Aragón‐Zavala²,

Zaldívar-Huerta³

et al. 2013

PIER B

View full text Add to dashboard Cite

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Underground Propagation

Zhang

2005

Encyclopedia of RF and Microwave Engineering

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This article presents both natural and guided propagation of radiowaves in underground structures. By natural propagation, we mean that no special‐purpose cables are strung in underground structures to guide radiowaves, whereas by guided propagation we mean that special‐purpose cables such as leaky feeders are strung in underground structures to guide radiowaves. The imperfect waveguide model is developed for the analysis of natural propagation. It predicts that natural propagation is that of waveguide modes. The fundamental mode is important for long‐distance propagation as it suffers the least attenuation, whereas higher order modes are problematic as they cause fluctuation because of addition or subtraction of these modes. The geometrical optical model is also developed for the analysis of natural propagation. It predicts that natural propagation is achieved via a direct ray and many reflected rays. Only the direct ray and those rays with fewer reflections are significant for long‐distance propagation. The diffuse model is developed for the analysis of guided propagation by coupled‐type leaky feeders. It undertakes to calculate the mean power flow per unit solid angle from a coupled‐type leaky feeder according to Lambert's cosine law. The geometrical optical model is developed for the analysis of guided propagation by radiated‐type leaky feeders. It compares a radiated‐type leaky feeder with an array of magnetic diploes, which radiate energy in a certain direction. Furthermore, the statistical characteristics of both natural and guided propagation are also discussed.

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Underground Propagation

Zhang

2005

Encyclopedia of RF and Microwave Engineering

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Radiowave retransmission in confined areas using radiating cable: theoretical and experimental study

Cited by 5 publications

References 1 publication

Indoor Propagation Modeling for Radiating Cable Systems in the Frequency Range of 900-2500 MHZ

Indoor Propagation Modeling for Radiating Cable Systems in the Frequency Range of 900-2500 MHZ

Underground Propagation

Underground Propagation

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