CHANNEL CHARACTERIZATION AND FINITE-STATE MARKOV CHANNEL MODELING FOR TIME-VARYING PLASMA SHEATH SURROUNDING HYPERSONIC VEHICLES | Zendy

Guolong He | Zendy; Yafeng Zhan | Zendy; Ning Ge | Zendy; Yukui Pei | Zendy; Bin Wu | Zendy; Yuan Zhao | Zendy

Open Access

CHANNEL CHARACTERIZATION AND FINITE-STATE MARKOV CHANNEL MODELING FOR TIME-VARYING PLASMA SHEATH SURROUNDING HYPERSONIC VEHICLES

Author(s) -

Guolong He,

Yafeng Zhan,

Ning Ge,

Yukui Pei,

Bin Wu,

Yuan Zhao

Publication year - 2014

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 89

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier14031104

Subject(s) - channel (broadcasting) , hypersonic speed , characterization (materials science) , plasma , markov chain , computer science , aerospace engineering , state (computer science) , physics , engineering , algorithm , computer network , optics , machine learning , quantum mechanics

Efiects on the communication signals caused by the time-varying plasma sheath surrounding hypersonic vehicles are investigated. Using computational ∞uid dynamics (CFD) technique, Demetriades's plasma turbulence model and flnite-difierence time-domain (FDTD) algorithm, amplitude variation and phase ∞uctuation induced by plasma electron density turbulence are obtained, and their statistical properties are analyzed and characterized. Furthermore, a flnite-state Markov channel (FSMC) model is proposed, to represent the dynamical efiects on electromagnetic wave propagation through plasma sheath. With high accuracy and greatly reduced complexity, the FMSC model could be very useful to develop novel communication techniques for alleviating the radio blackout problem.

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