Title :
Minimal length multirate zero ISI filters
Author :
Balaji, Bhashyam ; Yeap, Tet H.
Author_Institution :
Aerosp. Radar & Navigation Sect., Defence Res. Establ., Ottawa, Ont., Canada
Abstract :
A novel adaptive method for eliminating intersymbol interference (ISI) in a non-ideal channel, based on multirate signal processing, is proposed. The data is upsampled and filtered (by an appropriately designed channel-dependent transmitter filter) prior to transmission. The received signal is downsampled at the receiver. Zero ISI is achieved if the channel is known precisely. This method can be applied to multicarrier communication systems, such as discrete multitone transmission (DMT). This method is compared with the cyclic prefix method that is used in DMT systems, and it is found that comparable performance can be achieved, but with significantly reduced receiver complexity
Keywords :
adaptive signal processing; bandlimited communication; digital subscriber lines; filtering theory; interference suppression; intersymbol interference; receivers; signal sampling; telecommunication channels; ADSL; DMT systems; adaptive method; band-limited ideal channel; channel-dependent transmitter filter; cyclic prefix method; discrete multitone transmission; downsampling; interference suppression; intersymbol interference; minimal length multirate zero ISI filters; multicarrier communication systems; multirate signal processing; nonideal channel; performance; received signal; receiver; reduced receiver complexity; upsampled data; Adaptive algorithm; Aerospace engineering; Animals; Delay; Finite impulse response filter; Intersymbol interference; OFDM modulation; Radar; Signal design; Transmitters;
Conference_Titel :
Electrical and Computer Engineering, 2000 Canadian Conference on
Conference_Location :
Halifax, NS
Print_ISBN :
0-7803-5957-7
DOI :
10.1109/CCECE.2000.849681
