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. Honig | 1 | 2971 | 411.29 |
Kenneth Steiglitz | 2 | 1128 | 660.13 |
Gopinath, B. | 3 | 166 | 85.04 |