Linear Phase Impulse Response Shortening for xDSL DMT modems

Carlos Ribeiro, Vitor Silva, Paulo S. R. Diniz

DOI: 10.14209/its.2002.367

Evento: 2002 International Telecommunications Symposium (ITS2002)

Keywords:

Abstract

"The problem of shortening the effective channel impulse response in xDSL is addressed. A new approach is described based on linear phase FIR equaliser filters. The mathematical framework for the LPIRS method is developed and simulation results are presented for several VDSL loops. For a similar performance, the new method offers a design with considerably lower computational complexity and a simpler implementation, on either DSP or dedicated hardware solutions."

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