A simplified interpolation equalization technique for filterbank-based DMT systems

Author

Wang, Luqing ; Tellambura, Chintha ; Nowrouzian, Behrouz

Author_Institution

Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta., Canada

Volume

3

fYear

2003

fDate

4-7 May 2003

Firstpage

2063

Abstract

This paper presents a simplified interpolation equalization technique for filterbank-based DMT systems. In DMT systems, the channel effect in each subchannel can be approximated as a fractional delay, which can be compensated for by using the multitap interpolation equalization technique. By using a large number of polyphase components of the analysis filter output, and using the same polyphase index set for all subchannels, a simplified (suboptimal) interpolation equalization technique is proposed. This technique gives rise to a high transmission bit-rate close to the optimal solution of the interpolation equalization technique. It is also suitable for the timing synchronization.

Keywords

channel bank filters; delays; equalisers; interpolation; synchronisation; analysis filter output; channel effect; channel filterbank-based discrete multitone system; fractional delay; high transmission bit-rate; polyphase component; polyphase index set; simplified multitap interpolation equalization technique; timing synchronization; Additive noise; DSL; Delay effects; Digital filters; Digital modulation; Equalizers; Interpolation; OFDM modulation; Piecewise linear approximation; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2003. IEEE CCECE 2003. Canadian Conference on

ISSN

0840-7789

Print_ISBN

0-7803-7781-8

Type

conf

DOI

10.1109/CCECE.2003.1226322

Filename

1226322