Title
Multichannel signal processing for data communications in the presence of crosstalk
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
Year
DOI
Venue
1990
10.1109/26.52667
Communications, IEEE Transactions  
Keywords
Field
DocType
computerised signal processing,crosstalk,data communication systems,digital filters,subscriber loops,telecommunication channels,MSE/time diagrams,adaptive near-end crosstalk canceller,channel symbol vectors,data communications,eye diagrams,far-end crosstalk,matrix transfer function,multi-input/multi-output channel,multichannel adaptive FIR filters,multichannel signal processing,multiple coupled channels,signal design algorithm,standard transmission line model,stochastic gradient/LMS transversal algorithm,subscriber loops,transmitter/receiver pair,vector input bit stream
Transmitter,Signal processing,Twisted pair,Digital filter,Computer science,Communication channel,Mean squared error,Attenuation-to-crosstalk ratio,Electronic engineering,Transfer function
Journal
Volume
Issue
ISSN
38
4
0090-6778
Citations 
PageRank 
References 
35
16.18
11
Authors
3
Name
Order
Citations
PageRank
Michael L. Honig12971411.29
Kenneth Steiglitz21128660.13
Gopinath, B.316685.04