Title :
Local spline approximation of time-varying channel model
Author :
Zakharov, Y.V. ; Tozer, T.C.
Author_Institution :
Dept. of Electron., York Univ., UK
fDate :
11/8/2001 12:00:00 AM
Abstract :
Methods of local spline approximation of random functions described by Clarke´s model are investigated. Such a model is known to describe time-varying amplitudes of multipath components in mobile fading channels, Splines of zero, first and second orders with different spline coefficients are compared. The comparison shows that local linear and parabolic splines with quasi-optimal spline coefficients provide a low approximation error. This makes them attractive for estimating and modelling fast fading channels
Keywords :
Doppler effect; approximation theory; fading channels; mobile radio; splines (mathematics); time-varying channels; Clarke model; approximation error; fast fading channel estimation; fast fading channel modelling; local linear splines; local parabolic splines; local spline approximation; mobile communications; mobile fading channels; multipath components; quasi-optimal spline coefficients; random functions; time-varying amplitudes; time-varying channel model;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010942
