Effect of Improved Optimization of DFE Equalization on Crosstalk and Jitter in High Speed Links with Multi-level Signal

The signal in channels with high-speed designs is attenuated by channel loss, inter-symbol interference, jitter, noise and crosstalk. The main way to recover the signal is by using equalizations, such as Feed-Forward Equalizer, Continuous Time-Linear Equalizer and Decision Feedback Equalizer. One of...

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Bibliographic Details
Main Authors: Dikhaminjia, Nana, He, J., Deng, H., Tsiklauri, M., Drewniak, J., Chada, A., Mutnury, B.
Format: Conference Proceeding
Language:English
Subjects:
Decision feedback equalizers
DFE
Insertion loss
Jitter
Multi-Level Signal
Optical signal processing
Optimization
PAM4
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Summary:The signal in channels with high-speed designs is attenuated by channel loss, inter-symbol interference, jitter, noise and crosstalk. The main way to recover the signal is by using equalizations, such as Feed-Forward Equalizer, Continuous Time-Linear Equalizer and Decision Feedback Equalizer. One of the important problems of high-speed design and channel simulations is to develop fast optimization algorithms for choosing best tap coefficients for equalizers. Equalization of multi-level signal is more complicated and optimization algorithms require specific approach. The paper proposes a new efficient optimization of Decision Feedback Equalization (DFE) for binary and multi-level signals. Mathematical formulation of the optimization is given. Simulations were conducted for channels with different characteristics and comparison results are shown.
ISSN:2377-5726
DOI:10.1109/ECTC.2018.00315