NDLI: Multichannel signal processing for data communications in the presence of crosstalk

Content Provider	IEEE Xplore Digital Library
Author	Honig, M.L. Steiglitz, K. Gopinath, B.
Copyright Year	1972
Abstract	Transceiver designs for multiple coupled channels typically treat the crosstalk between adjacent twisted pairs as random noise uncorrelated with the transmitted signal. The authors propose a transmitter/receiver pair that compensates for crosstalk by treating an entire bundle of twisted pairs as a single multi-input/multi-output channel with a (slowly varying) matrix transfer function. The proposed transceiver uses multichannel adaptive FIR filters to cancel near- and far-end crosstalk, and to pre- and postprocess the input/output of the channel. Linear pre- and postprocessors that minimize mean squared error between the received and transmitted signal in the presence of both near- and far-end crosstalk are derived. The performance of an adaptive near-end crosstalk canceller using the stochastic gradient (least-mean-square) transversal algorithm is illustrated by numerical simulation. Plots of mean squared error versus time and eye diagrams are presented, assuming a standard transmission line model for the channel. A signal design algorithm that maps a vector input bit stream to a stream of channel symbol vectors is also presented and illustrated explicitly for s simple model of two coupled channels.<>
Starting Page	551
Ending Page	558
Page Count	8
File Size	838514
File Format	PDF
ISSN	00906778
Volume Number	38
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Signal processing Data communication Crosstalk Transceivers Signal design Signal processing algorithms Noise cancellation Transmitters Transmission line matrix methods Transfer functions
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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