Title :
Research on Doppler spread of multipath channel in subway tunnel
Author :
Xiao Chen ; Yuntian Pan ; Yiming Wu ; Guoxin Zheng
Author_Institution :
Key Lab. of Specialty Fiber Opt. & Opt. Access Networks, Shanghai Univ., Shanghai, China
Abstract :
Radio wave propagation in subway tunnel differs strongly from other circumstances because of the multi-path characteristics and special structure. A real multi-path propagation model for radio transmission in typical rectangular subway tunnel is presented in this paper, and ray-tracing technologies and wireless statistical theory are used to analyze Doppler spread and Doppler shift. Simulation results based on Wireless Insite show that Doppler spread and Doppler shift in tunnel are depended strongly upon frequency and velocity. Higher frequency signals and higher train´s velocity exhibit larger Doppler spread and Doppler shift. The simulation results in this paper provide a reference for the application of 4G and 5G technologies used in metro system.
Keywords :
4G mobile communication; 5G mobile communication; Doppler shift; multipath channels; radiowave propagation; railway communication; ray tracing; statistical analysis; 4G application; 5G application; Doppler shift; metro system; multipath channel doppler spread; multipath propagation model; radio transmission; radiowave propagation; ray tracing technology; subway tunnel; wireless insite; wireless statistical theory; Doppler shift; Optical fibers; Ray tracing; Time-frequency analysis; Wireless communication;
Conference_Titel :
Communication Problem-Solving (ICCP), 2014 IEEE International Conference on
Print_ISBN :
978-1-4799-4246-6
DOI :
10.1109/ICCPS.2014.7062216
