Title :
Comments on "Performance Analysis of a Deterministic Channel Estimator for Block Transmission Systems With Null Guard Intervals
Author :
Su, Borching ; Vaidyanathan, P.P.
Author_Institution :
California Inst. of Technol., Pasadena
fDate :
3/1/2008 12:00:00 AM
Abstract :
In the above-mentioned paper, a Cramer-Rao bound was derived for the performance of a blind channel estimation algorithm. In this correspondence, an error in the bound is pointed out and corrected. It is observed here that the performance of the said algorithm does not achieve the Cramer-Rao bound.
Keywords :
channel estimation; Cramer-Rao bound; blind channel estimation algorithm; block transmission systems; channel estimator; null guard intervals; Algorithm design and analysis; Blind equalizers; Channel estimation; Equations; Error correction; Numerical simulation; Phase shift keying; Quadrature phase shift keying; Random variables; Signal processing algorithms; Blind channel estimation; CramÉr–Rao bound (CRB); trailing zeros;
Journal_Title :
Signal Processing, IEEE Transactions on
DOI :
10.1109/TSP.2007.907855
