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Journal Article
Embedded Propagation Graph Model for Reflection and Scattering and Its Millimeter-Wave Measurement-Based Evaluation
- Authors
- Yuan Liu, Xuefeng Yin, Xiaokang Ye, Yongyu He, Juyul Lee
- Issue Date
- 2021-02
- Citation
- IEEE Open Journal of Antennas and Propagation, v.2, pp.191-202
- ISSN
- 2637-6431
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- Propagation graph (PG) is a stochastic channel simulation method for scattering propagation. In this article, an embedded-PG (EPG) approach, an extension of conventional PG, is proposed to simulate reflection and scattering multi-path behaviors in wireless channels. In this method, multiple propagation paths are categorized into scattering-path, reflecting-path, and scattering-reflecting mixed paths among reflectors and scatterers. The matrix recursive formula of conventional PG modeling is used to calculate scattering-path, a recursive mathematical transformation is applied to adapt reflecting-path into the recursive formula, and an embedded graph method is used to decompose mixed-path into scattering effects and reflection effects. The proposed simulation approach is validated by comparison with conventional PG and measurement in 39 GHz millimeter-wave (mm-wave) time-variant corridor scenario. Power delay profiles (PDPs) and spatial consistency of multiple paths observed in concatenated-PDPs (CPDPs) obtained by EPG are more consistent with measurement than conventional PG, differences of mean delay and delay spread between simulations and measurement in typical snapshots are within 3 ns and 1.5 ns, respectively.
- KSP Keywords
- 39 GHz, Channel Simulation, Delay spread, Embedded graph, Graph method, Multi-path, Power delay(PD), Power delay profile(PDP), Recursive formula, Scattering effect, Simulation method
This work is distributed under the term of Creative Commons License (CCL)
(CC BY NC ND)
(CC BY NC ND)
