Techniques for high-speed implementation of nonlinear cancellation

The authors present techniques for breaking the bottleneck caused by delays in the feedback loop, which can severely limit the maximum data rate of a detector, operating with nonlinear cancellation (NLC). The authors first show how to simplify the loop to avoid high-speed switching of analog signals...

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Veröffentlicht in:	IEEE journal on selected areas in communications 1991-06, Vol.9 (5), p.711-717
Hauptverfasser:	Kasturia, S., Winters, J.H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Chromatic dispersion Decision feedback equalizers Detectors Exact sciences and technology Feedback loop Interference cancellation Intersymbol interference Lifting equipment Optical receivers Propagation delay Senior members Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments)
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container_end_page	717
container_issue	5
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container_title	IEEE journal on selected areas in communications
container_volume	9
creator	Kasturia, S. Winters, J.H.
description	The authors present techniques for breaking the bottleneck caused by delays in the feedback loop, which can severely limit the maximum data rate of a detector, operating with nonlinear cancellation (NLC). The authors first show how to simplify the loop to avoid high-speed switching of analog signals by using multiple decision elements, each with a different threshold level. The authors then show how to use lookahead computation to increase the delay permissible in the feedback loop. The authors describe nonlinear cancellation, and outline some of the problems of implementing NLC at high data rates. Techniques for overcoming these problems are developed and are illustrated with the example of a simple one-tap NLC. The authors describe how to generalize the techniques to more complex NLCs and present some more examples.< >
doi_str_mv	10.1109/49.87640
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subjects	Applied sciences Chromatic dispersion Decision feedback equalizers Detectors Exact sciences and technology Feedback loop Interference cancellation Intersymbol interference Lifting equipment Optical receivers Propagation delay Senior members Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments)
title	Techniques for high-speed implementation of nonlinear cancellation
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