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Automatic Channel Condition Detection & Tuning Using Machine Learning Surrogate Models for 56G PAM4 Channels

Chris Cheng (Distinguished Technologist, HP Enterprise)

Yongjin Choi (Master Technologist, HP Enterprise)

Yasin Damgaci (EXPERT ENGINEER, HP Enterprise)

Location: Ballroom G

Date: Wednesday, January 29

Time: 2:00pm - 2:45pm

Track: 14. Machine Learning for Microelectronics, Signaling & System Design, 07. Optimizing High-Speed Serial Design

Format: Technical Session

Pass Type: 2-Day Pass, All-Access Pass, Alumni All-Access Pass - Get your pass now!

Vault Recording: TBD

Audience Level: All

Follow up on our previous paper on accelerating channel optimization using principal component analysis. We create families of surrogate models in the reduced dimension PCA space based on various channel conditions. When a new system topology is encountered, random points within the PCA space is sampled. The resulting performance is compared against the families of surrogate models and the closest solution is considered the nearest channel condition model. The optimal operating can then be easily set based on precomputed optimal setting for that surrogate model. Alternatively, the precompute settings can be used as seed values for circuit level auto tuning.

Takeaway

Automatic channel identification
Automatic channel tuning
Principal component analysis vector space
Polynomial chaotic expansion surrogate models

Intended Audience

Principal component analysis, Surrogate model , PAM-4 SerDes, channel optimization