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3D non-stationary wideband circular tunnel channel models for high-speed train wireless communication systems

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Abstract

This paper proposes three-dimensional (3D) non-stationary wideband circular geometry-based stochastic models (GBSMs) for high-speed train (HST) tunnel scenarios. Considering single-bounced (SB) and multiple-bounced (MB) components from the tunnel’s internal surfaces, a theoretical channel model is first established. Then, the corresponding simulation model is developed using the method of equal volume (MEV) to calculate discrete angular parameters. Based on the proposed 3D GBSMs, important time-variant statistical properties are investigated, such as the temporal autocorrelation function (ACF), spatial cross-correlation function (CCF), and space-Doppler (SD) power spectrum density (PSD). Results indicate that all statistical properties of the simulation model, verified by simulation results, can match well those of the theoretical model. The statistical properties of the proposed 3D GBSMs are further validated by relevant measurement data, demonstrating the flexibility and utility of our proposed tunnel GBSMs.

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Acknowledgements

This work was supported by International S&T Cooperation Program of China (Grant No. 2014DFA11640), EU H2020 ITN 5G Wireless Project (Grant No. 641985), EU FP7 QUICK Project (Grant No. PIRSES-GA-2013-612652), EPSRC TOUCAN Project (Grant No. EP/L020009/1), China Scholarship Council (Grant No. 201506450042), and in part by National Natural Science Foundation of China (Grant No. 61210002), Hubei Provincial Science and Technology Department (Grant No. 2016AHB006), and Fundamental Research Funds for the Central Universities (Grant No. 2015XJGH011).

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Correspondence to Cheng-Xiang Wang.

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Conflict of interest The authors declare that they have no conflict of interest.

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Liu, Y., Wang, C., Lopez, C. et al. 3D non-stationary wideband circular tunnel channel models for high-speed train wireless communication systems. Sci. China Inf. Sci. 60, 082304 (2017). https://doi.org/10.1007/s11432-016-9004-4

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Keywords

  • non-stationary
  • statistical properties
  • tunnel channel model
  • GBSM
  • channel measurement