Quasi-stationarity regions analysis for channel in composite high-speed railway scenario
Jingya Yang, Bo Ai, Ke Guan, Ruisi He, Qi Wang, Danping He, Zhuyan Zhao, Deshan Miao, Hao Guan · 2016
The channel nonstationarity caused by the train mobility is measured for the composite high-speed railway (HSR) scenario. The time-varying quasi-stationarity region analysis is based on spectral divergence (SD) metric carried on different frequencies. An obvious transition region is found in composite HSR. Moreover, based on the comparison of different frequencies, we found the apparent discrepancy of the quasi-stationarity region size estimated by the same threshold.