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FEXT cancellation for twisted-pair transmission SCIE SCOPUS

Title
FEXT cancellation for twisted-pair transmission
Authors
Im, GHKang, KMPark, CJ
Date Issued
2002-06
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGI
Abstract
This paper discusses a far-end crosstalk (FEXT) canceller for twisted-pair transmission. Many twisted-pair systems such as fiber-to-the-curb, very high-speed digital subscriber line, and high-speed LAN systems, use frequency-division duplexing (FDD) for duplex transmission. It is shown that the maximum reach of FDD twisted-pair system is limited by the performance of its upstream channel, which is assumed to be located at higher frequencies than the downstream channel. In order to improve the performance of such FDD transceiver, FEXT cancellation is introduced for the channel at higher frequencies. A system arrangement and its blind startup procedure are studied when the FEXT canceller and equalizer are jointly adapted to combat channel intersymbol interference, FEXT, and other additive noise. We investigate the initial convergence and the steady-state behavior of the proposed twisted-pair system without requiring transmission of an ideal training sequence. Measured characteristics as well as analytical model of the FEXT channel are used to estimate the time span needed for the FEXT canceller. It is also shown that the memory span for the FEXT canceller is almost independent of the channel, thus making our results useful for the twisted-pair system over all different channels.
Keywords
blind equalization; echo/near-end crosstalk/far-end crosstalk canceller; twisted-pair environment; BROAD-BAND ACCESS; DRIVEN ECHO CANCELERS; DIGITAL TRANSMISSION; EQUALIZER STRUCTURE; BLIND EQUALIZATION; SUBSCRIBER LINE; SINGLE-CARRIER; ATM-LAN; CYCLOSTATIONARY; INTERFERENCE
URI
https://oasis.postech.ac.kr/handle/2014.oak/19053
DOI
10.1109/JSAC.2002.1007378
ISSN
0733-8716
Article Type
Article
Citation
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, vol. 20, no. 5, page. 959 - 973, 2002-06
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임기홍IM, GI HONG
Dept of Electrical Enginrg
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