Local Power Estimation in High-Speed Railway Communications

摘要：

　　Local power estimation is essential in high-speed railway(HSR)communications.By applying the Lees criteria and correlated shadow fading in HSR environments,we derive the lower and upper bounds of the averaging length(AL)in Ricean fading for the first time.With real measurement data,we find that the AL should be selected from about 12 to 72 wavelengths and the required sampling number changes from 28 to 88 in typical HSR scenarios.Moreover,by this method,the confidence level is improved up to 99%.Finally,the impact of mobility on local power estimation is studied.It is found that sampling time monotonically decreases with the increase of trains speed.

关键词： High speed railway Doppler effect Local power Ricean fading Shadow fading correlation

作者: Bei Zhang Ting Wang Ruifeng Chen Mi Yang

作者单位: State Key Laboratory of Rail Traffic Control and Safety,Beijing Jiaotong University,Beijing,China Institute of Computing Technology,China Academy of Railway Sciences,Beijing,China

会议类型: 国际会议

会议名称: The 12th International Symposium Antennas, Propagation, and EM Theory(ISAPE 2018)?(第十二届天线、传播与电磁理论国际学术会议)

会议地点: 杭州

会议语种:英文

页码: 1-4

在线出版日期: 2018-12-03（万方平台首次上网日期，不代表论文的发表时间）