Capacity of shadow fading channels on high-speed railway with delayed feedback

Author(s):  
Lei Xiong ◽  
Zhangdui Zhong ◽  
Bo Ai ◽  
Jinlong Qian
2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Fengyu Luan ◽  
Yan Zhang ◽  
Limin Xiao ◽  
Chunhui Zhou ◽  
Shidong Zhou

This paper focuses on the fading characteristics of wireless channel on High-Speed Railway (HSR) in hilly terrain scenario. Due to the rapid speed, the fading characteristics of HSR channel are highly correlated with time or Transmit-Receive distance and have their own special property. To investigate the fading characteristics, the measurement is conducted on the Guangzhou-Shenzhen passenger-dedicated line in China with the speed of 295 km/h in the data-collection area at 2.4 GHz. From the measured data, the amplitude of each path is estimated by using the Subspace-Alternating Generalized Expectation-Maximization (SAGE) algorithm along with other parameters of channel impulse responses. Then the fading parameters, including path loss, shadow fading, andK-factor, are analysed. With the numerical results in the measurement and analysis, the fading characteristics have been revealed and modelled. It is supposed that this work has a promotion for HSR communication system design and improvement.


Author(s):  
Ruisi He ◽  
dui Zhong ◽  
Bo Ai ◽  
Claude Oestges

2015 ◽  
Vol 14 ◽  
pp. 954-957 ◽  
Author(s):  
Siyu Lin ◽  
Linghe Kong ◽  
Liang He ◽  
Ke Guan ◽  
Bo Ai ◽  
...  

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Lei Xiong ◽  
Haiyang Miao ◽  
Bo Ai ◽  
Tutun Juhana ◽  
Adit Kurniawan

In order to satisfy the increasing demand for the higher transmission capacity of “smart station”, millimeter wave (mmWave) technology is expected to play a significant role in the high data rate communication system. Based on the ray-tracing simulation technology, this paper would study wireless channel characteristics of the three-dimensional (3D) model of high-speed railway station at the mmWave band. Key parameters such as path loss exponent, shadow fading factor, delay spread, Rician K-factor, angular spread, power angle spectrum, and spatial correlation are extracted and investigated. These channel characteristics are of value for the selection of antenna arrays and even the design of future 5G communication networks in the railway environment.


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