Investigation of Cross-Correlation Characteristics for Multi-Link Channels in High-Speed Railway Scenarios

作     者：Tao Zhou Cheng Tao Liu Liu Kai Liu 

作者机构：Institute of Broadband Wireless Mobile Communications Beijing Jiaotong University National Mobile Communications Research Laboratory Southeast University 

出 版 物：《China Communications》 (中国通信（英文版）)

年 卷 期：2018年第15卷第8期

页      面：108-117页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 0839[工学-网络空间安全] 08[工学] 082302[工学-交通信息工程及控制] 0812[工学-计算机科学与技术（可授工学、理学学位）] 0823[工学-交通运输工程] 

基　　金：supported by the Beijing Municipal Natural Science Foundation under Grant 4174102 the National Natural Science Foundation of China under Grant 61701017 the Open Research Fund through the National Mobile Communications Research Laboratory, Southeast University, under Grant 2018D11 the Fundamental Research Funds for the Central Universities under Grant 2018JBM003 

主　　题：high-speed railway communications multi-link channel cross-correlation large-scale parameters small-scale fading. 

摘      要：This paper investigates the cross-correlation characteristics of large-scale parameters(LSPs) and small-scale fading(SSF) for high-speed railway(HSR) multilink propagation scenarios, based on realistic measurements conducted on Beijing to Tianjin HSR line in China. A long-term evolution-based channel sounding system is utilized in the measurements to obtain the channel data. By applying a proposed time-delay based dynamic partition method, multi-link channel impulse responses are extracted from the raw channel data. Then, the statistical results of LSPs, including shadow fading, K-factor, and root-mean-square delay spread are derived and the cross-correlation coefficients of these LPSs are calculated. Moreover, the SSF spatial correlation and cross-correlation of SSF are analyzed. These results can be used to exploit multi-link channel model and to optimize the next-generation HSR communication system.