RF interference suppression for VDSL system

Author

Im, Gi-Hong ; Won, Hui-Chul

Author_Institution

Dept. of Electron. & Electr. Eng., Pohang Univ. of Sci. & Technol., Kyungbuk, South Korea

Volume

47

Issue

4

fYear

2001

fDate

11/1/2001 12:00:00 AM

Firstpage

715

Lastpage

722

Abstract

This paper investigates the effect of radio frequency (RF) interference on the performance of very high-speed digital subscriber line (VDSL) system. It is shown that a blind equalization is extremely difficult in the presence of RF interference. A receiver structure, incorporating an adaptive notch filter (ANF) and hybrid DFE (H-DFE), is proposed to mitigate the effect of RF interference on the VDSL system. The use of an ANF before the DFE yields reliable blind equalization as well as performance improvement. It is also shown that the H-DFE structure employed in the proposed receiver outperforms the conventional DFE or the noise predictive DFE structure in the presence of RF interference

Keywords

adaptive filters; amplitude modulation; blind equalisers; decision feedback equalisers; digital subscriber lines; filtering theory; interference suppression; notch filters; phase modulation; radiofrequency interference; transceivers; H-DFE structure; RF interference suppression; RFI suppression; VDSL system; adaptive notch filter; blind equalization; blind equalization algorithm; carrierless amplitude modulation; carrierless phase modulation; decision-feedback equalizer; hybrid DFE; noise predictive DFE structure; radio frequency interference; receiver structure; simulation results; transceiver; very highspeed digital subscriber line; Adaptive filters; Blind equalizers; Crosstalk; DSL; Decision feedback equalizers; Electromagnetic interference; Power cables; Radio frequency; Radiofrequency interference; Receivers;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.982781

Filename

982781