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Nearly perfect-reconstruction cosine-modulated filter bank design for VDSL modems

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3 Author(s)
Viholainen, A. ; Telecommun. Lab., Tampere Univ. of Technol., Finland ; Saramaki, T. ; Renfors, M.

In our previous paper, we applied the idea of perfect-reconstruction cosine-modulated filter banks to develop efficient transmultiplexers for multicarrier VDSL transmission systems of the discrete wavelet multitone type. However, it is sometimes judicious to relax perfect-reconstruction conditions by allowing amplitude and/or aliasing distortions. In this paper, we present a nearly perfect-reconstruction cosine-modulated transmultiplexer approach for VDSL modems. The effects of design parameters (roll-off, filter length, maximum allowable amplitude distortion, and maximum allowable aliasing distortion) on the performance of the transmultiplexer systems are evaluated through design examples

Published in:

Electronics, Circuits and Systems, 1999. Proceedings of ICECS '99. The 6th IEEE International Conference on  (Volume:1 )

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