6533b858fe1ef96bd12b6c2b

RESEARCH PRODUCT

Level-Crossing Rate and Average Duration of Fades in Non-Isotropic Hoyt Fading Channels with Applications to Selection Combining Diversity

Neji YoussefMatthias PatzoldTsutomu KawabataNazih HajriWiem Dahech

subject

IsotropySpectral densitysymbols.namesakeAngle of arrivalComputer Science::Networking and Internet Architecturevon Mises distributionsymbolsElectronic engineeringFadingStatistical physicsRayleigh scatteringGaussian processMultipath propagationComputer Science::Information TheoryMathematics

description

In this paper, we investigate the second-order statistics of Hoyt fading channels under non isotropic scattering scenarios. Assuming an asymmetrical Doppler power spectral density (PSD), we derive, in the form of single finite-range integrals, expressions for the level-crossing rate (LCR) and average duration of fades (ADF). These new results are then applied to obtain the LCR and ADF of selection combining (SC) diversity over non-isotropic Hoyt channels. In addition to their importance for studying the system performance and characterizing the dynamic behavior of multipath fading channels, the formulas derived are general in that they can be applied to many non-isotropic scattering situations. Furthermore, they are shown to unify some existing results for Rayleigh and Hoyt channels. The validity of the analytical expressions is verified by means of computer simulations where a mobile-to-mobile (M2M) propagation scenario is considered in which the angle of departure (AOD) and angle of arrival (AOA) of multipath components are both described by the von Mises distribution.

yearjournalcountryeditionlanguage
2015-09-012015 IEEE 82nd Vehicular Technology Conference (VTC2015-Fall)
https://doi.org/10.1109/vtcfall.2015.7391005