Title :
Optimization of tap spacings for the tapped delay line decision feedback equaliser
Author_Institution :
Lucent Technol., AT&T Bell Labs., Murray Hill, NJ, USA
Abstract :
Tap spacings in a tapped delay line equalizer are optimized. We derive a set of nonlinear equations for the optimum tap spacings and tap weights for the decision feedback equalizer. A recursive numerical technique is used to obtain the optimum settings. The nonuniformly spaced tapped delay line equalizer with the optimized tap spacings outperforms the conventional uniformly spaced equalizer with the same number of taps
Keywords :
circuit optimisation; decision feedback equalisers; delay lines; nonlinear equations; ISI; decision feedback equaliser; intersymbol interference; nonlinear equations; nonuniformly spaced tapped delay line equalizer; recursive numerical technique; tap spacings optimization; tap weights; tapped delay line DFE; uniformly spaced equalizer; Closed-form solution; Decision feedback equalizers; Delay effects; Delay lines; Intersymbol interference; Matched filters; Noise figure; Nonlinear equations; Performance gain; Search methods;
Conference_Titel :
Communications, 1998. ICC 98. Conference Record. 1998 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-4788-9
DOI :
10.1109/ICC.1998.682577
