Abstract
Channel modeling is crucial to the development and evaluation of modern wireless communication systems including satellite communication system, since there might be critical safty-of-life applications. Also, the channel model is of great importance to the performance evaluation of mobile communication systems. In recent years, encouraged by the widely application of unmanned aerial vehicles, the research on channel modeling for aerial and aeronautical communications attract lots of interests. In the published articles, stationary and non-stationary channel models have been developed for air-to-ground communications based on regular shaped geometry-based stochastic model (RS-GBSM). The modeling of air-to-air or satellite-to-aircraft (S2A) communication is still quite simple or completely lacking. For obtaining more precise model of S2A channel, this paper presents an analytical non-stationary S2A channel mode based on RS-GBSM with considerations on line-of-sight path, specular reflection path, and ground scattering path. Analytical expressions of the channel impulse responses, the transfer functions, the auto-correlation functions, and the Doppler power spectrum density based on 3-path model are derived and simulated. Also, the distributions of the path antennation, the path delay, and the normalized Doppler shift based on uniform distribution of the scatterers are derived, simulated and fitted.
Highlights
The accuracy of performance evaluation on satellite-to-aircraft (S2A) communication is important since there might be critical safety-of-life applications
regular shaped geometry-based stochastic model (RS-GBSM) and introducing the ground scattering that must be considered in S2A channel modeling, we are able to develop and present an analytical non-stationary RS-GBSM based S2A model in this paper
The non-stationary characteristics of the channel is observed through the simulation of channel impulse responses (CIRs), transfer functions (TFs), auto-correlation functions (ACFs), power spectrum density (PSD), and etc
Summary
The accuracy of performance evaluation on satellite-to-aircraft (S2A) communication is important since there might be critical safety-of-life applications. The accuracy of system performance evaluation is to some extend determined by precise modeling of the channel. Existing techniques for modeling of the S2A channel are not sufficiently precise [1], some literatures such as [1,2,3,4]. The methods of developing regular shaped geometry-based stochastic models (RS-GBSMs) were presented in [5,6,7], and non-stationary characteristics of mobile channels were discussed in [8]. RS-GBSM and introducing the ground scattering that must be considered in S2A channel modeling, we are able to develop and present an analytical non-stationary RS-GBSM based S2A model in this paper
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