Title :
A noniterative approach for computing linear equaliser tap weights
Author :
Tellambura, C. ; Guo, Y.J. ; Barton, S.K.
Author_Institution :
Dept. of Digital Syst., Monash Univ., Clayton, Vic., Australia
Abstract :
A fast computation method for the tap weights of a linear equaliser is developed. By approximating the channel autocorrelation matrix, which has a Toeplitz structure, by a circulant matrix, the tap weights can be solved via discrete fourier transform (DFT) techniques. For an equaliser with N taps, the approximate tap weights approach the exact tap weights as N→∞. Excess mean-square error and bit error rate (BER) degradation caused by the approximate tap weights are computed for a representative channel
Keywords :
Toeplitz matrices; correlation methods; discrete Fourier transforms; equalisers; interference suppression; intersymbol interference; least mean squares methods; BER degradation; DFT; Toeplitz structure; approximate tap weights; bit error rate; channel autocorrelation matrix; circulant matrix; discrete fourier transform; exact tap weights; fast computation method; intersymbol interference; linear equaliser tap weights; mean-square error; noniterative approach; Australia; Autocorrelation; Bit error rate; Decision feedback equalizers; Degradation; Digital systems; Discrete Fourier transforms; Filters; Iterative algorithms; Least squares approximation;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1997. Waves of the Year 2000. PIMRC '97., The 8th IEEE International Symposium on
Conference_Location :
Helsinki
Print_ISBN :
0-7803-3871-5
DOI :
10.1109/PIMRC.1997.630912
