Résumé:
The propagation channel prediction is a fundamental technique in Wireless
communications systems, in particular in case of mobility where the channel parameters vary
with time. Prediction allows, in this case, to know the future values of complex channel gains
from past values. Among the techniques proposed in the littérature, the one which is based on
the autoregressive process (AR), generally used for the prediction and estimation of time
series, was chosen for this work. The performance of this technique with point of view of
symbol error rate versus signal to noise ratio has been studied and analyzed in the case of
single carrier and multi-carrier transmission with variable speed where the propagation
channel is Rayleigh Jakes type.
Key-words : AR, Doppler frequency, Rayleigh, OFDM, Yule-Walker, MSE.