期刊
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
卷 16, 期 -, 页码 1427-1430出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2016.2626303
关键词
Cutting; high-speed railway (HSR); multiple scattering channel model; small-scale fading (SSF)
资金
- National Natural Science Foundation of China [61501020, 61222105, 61471030, U1334202]
- Fundamental Research Funds for the Central Universities [2016JBZ006, 2016YJS012, 2016JBM075]
- State Key Laboratory of Rail Traffic Control and Safety [RCS2016ZT021]
- China Postdoctoral Science Foundation [2016M591355]
In this letter, the fading statistics of wireless channels in high-speed railway cutting scenarios are characterized based on measurements. A multiple scattering model called second-order scattering fading (SOSF) is used to model the small-scale fading considering the influence of cuttings and bridges. The SOSF model can offer the possibility of analytical estimation for different fading severities via a simple moment-based estimator. It is demonstrated that Ricean fading is the dominant fading distribution in cutting scenarios, but deep fades also occur. The fading process is therefore described by a hidden Markov model, which is validated statistically by measurement data.
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