Research Article
The Effect of Reference Distance on Path Loss Prediction Based on the Measurements in High-Speed Railway Viaduct Scenarios
@INPROCEEDINGS{10.1109/ChinaCom.2011.6158340, author={Ruisi He and Zhangdui Zhong and Bo Ai and Lei Xiong and Jianwen Ding}, title={The Effect of Reference Distance on Path Loss Prediction Based on the Measurements in High-Speed Railway Viaduct Scenarios}, proceedings={1st International ICST Workshop on Wireless Communications for High Speed Rail}, publisher={IEEE}, proceedings_a={HSR COM}, year={2012}, month={3}, keywords={path loss model reference distance path loss exponent high-speed railway}, doi={10.1109/ChinaCom.2011.6158340} }- Ruisi He
Zhangdui Zhong
Bo Ai
Lei Xiong
Jianwen Ding
Year: 2012
The Effect of Reference Distance on Path Loss Prediction Based on the Measurements in High-Speed Railway Viaduct Scenarios
HSR COM
IEEE
DOI: 10.1109/ChinaCom.2011.6158340
Abstract
This paper presents the narrowband measurements taken along “Zhengzhou-Xi’an” high-speed railway of China at 930 MHz. The detailed measurements and data processing methods are given using the present GSM-Railways (GSM-R) network, which can be used as the guide method to conduct the narrowband measurements in high-speed railway viaduct scenarios. Based on the log-normal shadowing path loss model, the investigation is made on the effect of reference distance on path loss exponent and standard deviation, which are not wellcovered by existing models. The values of path loss exponents and standard deviations calculated with different reference distances are compared. A novel model is proposed to describe the relation of them. It applies to high-speed railway viaduct scenarios, with base antenna heights higher or lower than 25 meters. It raises path loss prediction accuracy and gives the suggestion on large scale modeling considering the effect of reference distance.
