Title
Digital Rfi Suppression In Dmt-Based Vdsl Systems
Abstract
In this paper, we propose a method for suppressing radio frequency interference (RFI) in discrete multitone (DMT) based very high bit rate digital subscriber line (VDSL) systems. The method operates in the frequency domain of a DMT system. First, we derive a model of how an unknown narrow-band RF signal is mapped onto the DMT carriers. Then, by measuring the RFI on a few unused DMT carriers we are able to subtract RFI estimates from every modulated subcarrier. Simulation results show. that this method, applied to an RFI signal with the same average power as the VDSL signal, suppresses the RFI with 40-50 dB, which reduces the average SNR loss from about 20 to less than 0.3 dB.
Year
DOI
Venue
2004
10.1109/TCSI.2004.836865
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
Keywords
Field
DocType
discrete multitone (DMT), radio frequency interference (RFI), subscriber loops, very high bit rate digital subscriber line (VDSL)
Frequency domain,Signal processing,Narrowband,Control theory,Computer science,Electromagnetic interference,Electronic engineering,Real-time computing,Transfer function,High-bit-rate digital subscriber line
Journal
Volume
Issue
ISSN
51
11
1549-8328
Citations 
PageRank 
References 
11
3.75
5
Authors
6
Name
Order
Citations
PageRank
Frank Sjöberg1587.38
R. Nilsson211726.08
Per Ola Börjesson3953100.21
Per Ödling433539.21
brian r wiese5113.75
John A. C. Bingham62726.28