Title :
Adaptive estimation and compensation technique of channel s over VDSL systems
Author :
Bae, B.S. ; Im, G.H. ; Jeong, Young Hun
Author_Institution :
Dept. of Electr. & Comput. Eng., Pohang Univ. of Sci. & Technol., South Korea
fDate :
10/24/2002 12:00:00 AM
Abstract :
A simple compensation technique for channel s induced by bridged taps is proposed over very high-speed digital subscriber line (VDSL) systems. The lost signal components caused by bridged taps are compensated for by an adaptive filter the transfer function of which has poles at the frequencies. Null frequencies are adaptively estimated using the minimum power criterion of the filter output. The decision-feedback equaliser (DFE) with the proposed filter showed a 4-5 dB mean square error improvement compared with the conventional DFE.
Keywords :
adaptive estimation; adaptive filters; compensation; decision feedback equalisers; digital subscriber lines; mean square error methods; DFE; VDSL systems; adaptive estimation; adaptive filter; bridged taps; channel s; compensation technique; decision-feedback equaliser; frequencies; mean square error improvement; minimum power criterion; poles; transfer function; very high-speed digital subscriber line;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020893
