... reserved for the matrix Hermitian, (·)−1 for the matrix inverse, (·)T for the matrix (vector) transpose,(·)∗ for the complex conjugate, for the Kronecker product,tr{·} for the trace ... probed. The MMSE channel estimator has better performance among the tested estimators, but it requires more knowledge about the channel. For channels with uniform PDP or a lowernumber of taps, the ... priori. For the largevalues of L, the MMSE channel estimator outperforms the SSLS channel estimator. However, for the small valuesof L, the performances of both estimators are similar.Practically,...