Rayleigh fading channel estimation using Schmidt polynomials

In this paper we present a new method to estimate the radio mobile channel. The used technique is based on pilot symbols. Pilot symbols are introduced among the data frame. At reception the pilot symbols are projected on an orthonormal basis of polynomials which we call Schmidt polynomials (they are obtained with orthogonalization of Schmidt). Then an interpolation is done which gives the channel coefficient at each position in the frame. Compared to the classical method of channel estimation (based on the FFT) this method presents the same performance with less complexity