6533b7dbfe1ef96bd1270c41

RESEARCH PRODUCT

A Non-WSSUS Mobile-to-Mobile Channel Model Assuming Velocity Variations of the Mobile Stations

Wiem DahechMatthias PatzoldCarlos A. GutierrezNeji Youssef

subject

Vehicular communication systemsMobile channelComputer scienceScattering020206 networking & telecommunications020302 automobile design & engineering02 engineering and technologyTopologyExpression (mathematics)UncorrelatedCorrelation function (statistical mechanics)0203 mechanical engineeringComputer Science::Networking and Internet Architecture0202 electrical engineering electronic engineering information engineeringFadingSimulationComputer Science::Information TheoryCommunication channel

description

This paper aims to characterize the effects that the velocity variations of the mobile stations (MSs) produce on the correlation properties of non-stationary time-frequency (TF) dispersive mobile- to-mobile (M2M) fading channels. Toward that end, we propose a novel geometrical model for non-wide-sense stationary uncorrelated scattering (non-WSSUS) M2M channels that incorporates such variations following a plane wave propagation approach. Capitalizing on the mathematical simplicity of this approach, we derive a general expression for the four-dimensional (4D) TF correlation function (TFCF) of the proposed channel model. From this expression, we analyze the influence of the MSs' acceleration#x002F;deceleration on the channel's correlation properties. Some simulation examples illustrating our findings are presented for the particular case of the geometrical one-ring scattering model. The proposed channel model can be used as a reference to study the performance of emerging vehicular communication systems in safety-threatening scenarios, such as when a MS is forced to break suddenly. nivå1

yearjournalcountryeditionlanguage
2017-03-012017 IEEE Wireless Communications and Networking Conference (WCNC)
https://doi.org/10.1109/wcnc.2017.7925795