Radio wave propagation in curved rectangular tunnels at 5.8 GHz for metro applications

Masson, Émilie; Cocheril, Yann; Combeau, Pierre; Aveneau, Lilian; Berbineau, Marion; Vauzelle, Rodolphe; Fayt, Etienne

doi:10.1109/itst.2011.6060166

Cited by 17 publications

(16 citation statements)

References 14 publications

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“…At 5.8 GHz, there are many wireless radio system deployments based on WLAN (wireless local area network) to realize driverless underground systems, such as in New-York, line 1 in Paris, Malaga, Marmaray, Singapore, etc. [11]. All these communication systems are essentially a key factor for the new generations of ITS [12]- [15].…”

Section: Introductionmentioning

confidence: 99%

Measurements and Analysis of Large-Scale Fading Characteristics in Curved Subway Tunnels at 920 MHz, 2400 MHz, and 5705 MHz

Guan

Zhang

et al. 2015

IEEE Trans. Intell. Transport. Syst.

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Abstract-Wave propagation characteristics in curved tunnels are of importance for designing reliable communications in subway systems. This paper presents the extensive propagation measurements conducted in two typical types of subway tunnelstraditional arched "Type I" tunnel and modern arched "Type II" tunnel-with 300-and 500-m radii of curvature with different configurations-horizontal and vertical polarizations at 920,2400, and 5705 MHz, respectively. Based on the measurements, statistical metrics of propagation loss and shadow fading (path-loss exponent, shadow fading distribution, autocorrelation, and crosscorrelation) in all the measurement cases are extracted. Then, the large-scale fading characteristics in the curved subway tunnels are compared with the cases of road and railway tunnels, the other main rail traffic scenarios, and some "typical" scenarios to give a comprehensive insight into the propagation in various scenarios where the intelligent transportation systems are deployed. Moreover, for each of the large-scale fading parameters, extensive analysis and discussions are made to reflect the physical laws behind the observations. The quantitative results and findings are useful to realize intelligent transportation systems in the subway system.

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Section: Introductionmentioning

confidence: 99%

Measurements and Analysis of Large-Scale Fading Characteristics in Curved Subway Tunnels at 920 MHz, 2400 MHz, and 5705 MHz

Guan

Zhang

et al. 2015

IEEE Trans. Intell. Transport. Syst.

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“…4.2, the green lines with the 300 m RoC presents much steeper than the yellow lines with the 500 m RoC, which means that the wave propagated in the more curved tunnel can obtain the larger loss. Similar results are stated in [4,123,121,118]. Next, If we compare the dotted lines in Fig.…”

Section: Measurement Results Analysissupporting

confidence: 78%

“…At 2.4 GHz frequency band, there are Wi-Fi, UMTS (Universal Mobile Telecommunications System), LTE, CBTC, and pending LTE-R. Moreover, there are many wireless radio systems deployed for driverless underground systems work at 5.8 GHz [4]. iii) different kinds of reflection or scattering surface with various materials, such as steel, concrete, etc.…”

Section: Motivationmentioning

confidence: 99%

“…The first-hand practical measurement results are obtained and presented in this thesis, including the narrowband measurements in subway curved tunnels with various configurations; the wideband measurements in subway station and tunnel at 980 MHz and 2150 MHz; the wideband measurements in HSR station and a composite regions contain tunnel, cutting, and viaduct; the radio coverage for outdoor and indoor high-speed train; propagation loss inside the trains. 4. By the mean of extensive measurements, the dedicated channel models are proposed for each complex environments.…”

Section: Contributionsmentioning

confidence: 99%

“…For instance, theoretical deduction of modal analysis in [115]; ray tracing-like approaches with some specific cross sections in [4,116,117,118,119,120,121,122]; the parabolic equation (PE) along with the alternate direction implicit (ADI) method in [123,124]; hybrid modeling approaches in [125,126]. These simulations approaches can somehow predict the propagation losses or attenuations.…”

Section: Part I: Narrowband Measurements In Curved Tunnelsmentioning

confidence: 99%

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