Minimum-redundancy ISI-free FIR filterbank transceivers

Yuan-Pei Lin; See-May Phoong

doi:10.1117/12.408664

4 December 2000 Minimum-redundancy ISI-free FIR filterbank transceivers

Yuan-Pei Lin, See-May Phoong

Proceedings Volume 4119, Wavelet Applications in Signal and Image Processing VIII; (2000) https://doi.org/10.1117/12.408664
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

The discrete multitone modulation system (DMT) has been demonstrated to be a very useful technique for high speed transmission over frequency selective channels such as the digital subscriber loops. The DMT system can be realized using a filterbank transceiver, the synthesis bank as the transmitter and the analysis bank as the receiver. With proper time domain equalization, the channel can usually be modeled as an FIR filter with order L. It is known that if a redundancy of length L is introduced, FIR filterbank transceivers with zero ISI property can be achieved. For example, in DFT based DMT system, redundancy is introduced by adding a cyclic prefix of length L. In this paper, we will derive the minimum length of redundancy required for FIR filterbank transceivers with ISI free property. For a given channel, we will show that the minimum length is directly related to the Smith form of an appropriately defined channel matrix.

Citation Download Citation

Yuan-Pei Lin and See-May Phoong "Minimum-redundancy ISI-free FIR filterbank transceivers", Proc. SPIE 4119, Wavelet Applications in Signal and Image Processing VIII, (4 December 2000); https://doi.org/10.1117/12.408664

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