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Per tone equalization for DMT receivers

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5 Author(s)
K. Van Acker ; ESAT-SISTA, Katholieke Univ., Leuven, Belgium ; G. Leus ; M. Moonen ; O. van de Wiel
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An alternative receiver structure is presented for discrete multitone (DMT)-based systems. The usual structure consisting of a (real) time domain equalizer (TEQ) with a (complex) 1-tap frequency domain equalizer (FEQ) per tone, is modified into a structure with a (complex) multitaps FEQ per tone. By solving an MMSE problem, the SNR is maximized for each tone separately. This always results in a larger bit rate while complexity during data transmission is kept at the same level. Moreover, the per tone equalization is shown to have a reduced sensitivity to the synchronization delay.

Published in:

Global Telecommunications Conference, 1999. GLOBECOM '99  (Volume:5 )

Date of Conference: