Bayesian optimization of first-order continuous-time linear equalization in high-speed links including crosstalk

Start Page
1
End Page
4
Article Number
189413
Citation
IEEE Workshop on Signal and Power Integrity (SPI 2023)
Contribution to Conference
27th IEEE Workshop on Signal and Power Integrity, SPI 2023  
Publisher DOI
10.1109/SPI57109.2023.10145571
Scopus ID
2-s2.0-85163303483
Publisher
Institute of Electrical and Electronics Engineers Inc.
ISBN
979-835033282-7
In this work, the Bayesian optimization algorithm is utilized to find optimal coefficients for a first-order Continuous-Time Linear Equalizer (CTLE). The goal function for the optimization is derived from the single-bit response in the time domain. The performance of the optimized CTLE is compared to a frequency domain-based method for predicting the CTLE coefficients and a grid search over all possible combinations. The analysis is presented for two different PCB-based high-speed channels and with a 32 Gbps data rate. As a novel contribution, far-end crosstalk is included in the optimization. The resulting noisy behavior of the single-bit response is learned during the optimization as part of the Gaussian process model.
Subjects
Bayesian optimization
Continuous-Time Linear Equalizer
Crosstalk
Single-Bit Response
DDC Class
600: Technology