METHOD FOR DETECTING CANAL BLOCKS SUBJECT TO UNPLANTING

摘要

The invention relates to a transmission system via a faded channel. It is known to use in this case an iterative method of block detection, which includes a step of multiplying the blocks received by a filtering matrix whose elements are written (CF DRAWING IN BOPI) where rho *, j = 1 ..., n are the conjugates of the coefficients rhoj of the channel, n is the size of the block, E (rho j 2) is the expectation of rho j 2, and N0 is the variance of the Gaussian noise. proposes to use, after phase compensation, an improved filtering matrix whose elements are written (CF DRAWING IN BOPI) where p (i) is a real quantity which is a function of the iteration i. Advantageously the powers p ( i) are chosen by applying a criterion for minimizing the bit error rate. Application: mobile communicatlons. / P