1. Shandong Provincial Key Lab of Wireless Communication Technologies, Shandong University, Jinan 250100, China
2. Institute of Sensors, Signals and Systems, School of Engineering Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K.
3. Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Corresponding author (email@example.com
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.
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).
Copyright 2019 Science China Press Co., Ltd. 《中国科学》杂志社有限责任公司 版权所有