Performance evaluation of blind channel estimation using a frequency domain base-band communication model

A frequency domain approach for evaluating estimation bounds (Cramer-Rao bounds) of base-band communication channel model parameters is presented. It is assumed that the estimation process uses 2^nd order statistics of an over-sampled signal with the exploitation of signal cyclostationary properties. The described frequency domain approach provides useful insight into the channel estimation problem and is independent of the adopted parameter estimation technique. Furthermore, the proposed frequency domain technique does not depend on the noise probability density function and could be easily extended for evaluating the estimation performance in the presence of colored noise