Title :
A new precoding for ISI cancellation using multirate filterbanks
Author_Institution :
Dept. of Electr. Eng., Delaware Univ., Newark, DE, USA
Abstract :
In this paper, we propose a new precoding scheme for intersymbol interference (ISI) cancellation using multirate filterbanks. The ISI channel may not have inverses, such as frequency-selective fading channels. We present a necessary and sufficient condition on an FIR ISI transfer function in terms of its zero set such that a linear FIR ideal equalizer exists. The condition is easy to check and satisfy. Designs of pre/postcodings are also presented. A numerical example is presented to illustrate the theory
Keywords :
FIR filters; band-pass filters; digital filters; interference suppression; intersymbol interference; ISI cancellation; linear FIR ideal equalizer; multirate filterbanks; precoding scheme; zero set; Circuits and systems; Equalizers; Finite impulse response filter; Frequency-selective fading channels; Interference cancellation; Interpolation; Intersymbol interference; Linear systems; Sampling methods; Transfer functions;
Conference_Titel :
Circuits and Systems, 1997. ISCAS '97., Proceedings of 1997 IEEE International Symposium on
Print_ISBN :
0-7803-3583-X
DOI :
10.1109/ISCAS.1997.612809
