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A simplified interpolation equalization technique for filterbank-based DMT systems

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3 Author(s)
L. Wang ; Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta., Canada ; C. Tellambura ; B. Nowrouzian

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.

Published in:

Electrical and Computer Engineering, 2003. IEEE CCECE 2003. Canadian Conference on  (Volume:3 )

Date of Conference:

4-7 May 2003