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RESEARCH PRODUCT
Geometry-Based Statistical Modeling of Non-WSSUS Mobile-to-Mobile Rayleigh Fading Channels
Ramiro VelazquezDaniel U. Campos-delgadoMatthias PatzoldCarlos A. GutierrezJosé Trinidad Gutierrez-menaJose Martin Luna-riverasubject
PhysicsComputer Networks and CommunicationsAerospace Engineering020206 networking & telecommunications020302 automobile design & engineeringStatistical modelGeometry02 engineering and technologyCorrelation function (statistical mechanics)Fading distribution0203 mechanical engineeringChannel state informationRician fadingAutomotive Engineering0202 electrical engineering electronic engineering information engineeringFadingElectrical and Electronic EngineeringMultipath propagationComputer Science::Information TheoryRayleigh fadingdescription
In this paper, we present a novel geometry-based statistical model for small-scale non-wide-sense stationary uncorrelated scattering (non-WSSUS) mobile-to-mobile (M2M) Rayleigh fading channels. The proposed model builds on the principles of plane wave propagation to capture the temporal evolution of the propagation delay and Doppler shift of the received multipath signal. This is different from existing non-WSSUS geometry-based statistical channel models, which are based on a spherical wave propagation approach, that in spite of being more realistic is more mathematically intricate. By considering an arbitrary geometrical configuration of the propagation area, we derive general expressions for the most important statistical quantities of nonstationary channels, such as the first-order probability density functions of the envelope and phase, the four-dimensional (4-D) time-frequency correlation function (TF-CF), local scattering function (LSF), and time-frequency-dependent delay and Doppler profiles. We also present an approximate closed-form expression of the channel's 4-D TF-CF for the particular case of the geometrical one-ring scattering model. The obtained results provide new theoretical insights into the correlation and spectral properties of non-WSSUS M2M Rayleigh fading channels. nivå2
year | journal | country | edition | language |
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2017-01-01 |