Antenna selection method of train distributed antenna system in pipe tunnel

The invention relates to the technical field of wireless communication, in particular to an antenna selection method of a train distributed antenna system in a pipe tunnel. According to the method, an antenna selection method with a fixed RAU cooperative set size is combined with an antenna selection method based on train geographic position information, the characteristics of a millimeter wave communication channel in a high-mobility lower pipeline/tunnel are considered, the millimeter wave atmospheric attenuation effect is introduced, the received signal-to-noise ratio loss caused by Doppler frequency offset and the high mobility of the train and the like are introduced, a brand-new antenna selection method is redesigned by utilizing information such as the geographic position and the speed of the train, and the algorithm execution complexity, the algorithm execution time and the feedback overhead are greatly reduced on the premise of ensuring a certain system capacity. 本发明涉及无线通信技术领域，特别是一种管隧道内列车分布式天线系统的天线选择