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《电子学报(英文)》 2018-05
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Wireless Channel Measurements and Modeling of LTE Broadband System for High-Speed Railway Scenarios

ZHAO Hua;LYU Qing;LIU Yachuan;CHEN Jiaxing;ZHANG Shujing;Hebei Normal University,Career Technical College;  
In high-speed scenarios, channel model is of vital importance in Long term evolution(LTE) systems.By extensive measurements on Beijing-Tianjin railway, this paper proposes a distance-dependent channel model. Both large-scale and small-scale channel characteristics are presented in detail. The large-scale path loss is modeled under the hierarchical network structure. Small-scale channel characteristics that include channel impulse response,power delay profile and Doppler spectrum are deduced and analyzed. In particular, a new stage-wise K-factor model is proposed. Combined with the cumulative distribution function of Root-mean squared(RMS) delay spread and the number of paths, they clearly illustrate the distancedependent variances of the channel. Finally, the integrated distance-dependent channel models are proposed to give a comprehensive description of broadband LTE channel in high-speed railway scenario.
【Fund】: supported by the National Natural Science Foundation of China(No.61501168 No.61771181 No.61701165);; Technology Foundation for Selected Overseas Chinese Scholar of Hebei Province(No.C2015005016);; Hebei Province Education Office Foundation(No.QN2015030 No.QN2016100);; Hebei Normal University Youth Foundation(No.L2015Q09 No.L2015Q12)
【CateGory Index】: TN929.5
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