ARMA model for multipath Rayleigh fading using the Minimum Description Length criterion

An ARMA (p, q) model parameterization method is proposed for approximating the Clarke's theoretical autocorrelation function. The MDL criterion is used for estimating the order of ARMA model on multipath Rayleigh fading. An ARMA (14, 13) model is obtained for approximating the Clarke's theoretical correlation by considering statistical parameter with the nominal of discrete-time and maximum Doppler frequency are ƒ
m
= 0.005 and ƒ
d
= 240 Hz. The accuracy of the fitting provided with the obtained ARMA (p, q) models is compared with the results from the literature. The ARMA (14, 13) models provide very good fitting.