EE Seminar: Link Training: PMD Control Function Optimization
Electrical Engineering Systems Seminar
Speaker: Ori Noy
M.Sc. student under the supervision of Prof. Ofer Amrani
Sunday, 17th May 2026, at 15:00
Room 011, Kitot Building, Faculty of Engineering
Link Training: PMD Control Function Optimization
Abstract
In high-speed SerDes Ethernet systems, link training is the process by which the transmitter (Tx) and receiver (Rx) adapt their parameters to achieve reliable, high-quality data transmission. As data rates continue to scale to 100 Gb/s per lane and beyond, precise optimization of Tx and Rx equalization coefficients becomes critical. While the IEEE 802.3ck standard defines the protocol framework, including training sequences, state machines, and signaling, it does not prescribe specific optimization strategies for coefficient adaptation.
This work provides a mathematical analysis of the link training problem and establishes theoretical performance bounds for the communication system. Building on this analysis, a robust and systematic framework for link training optimization is developed, identifying key parameters that govern convergence and performance. A method for efficient optimization of transmitter feed-forward equalizer (FFE) coefficients is proposed, leveraging adaptive, data-driven machine learning algorithm and receiver feedback to iteratively refine Tx settings and improve signal integrity.
The proposed approach enables joint optimization of Tx and Rx equalization, leading to an improved bit error rate (BER) and mean square error (MSE) performance. Furthermore, enhancements to the IEEE 802.3ck protocol are introduced and evaluated, demonstrating improved BER while preserving signal-to-noise ratio (SNR), with a reduction in the training iterations count.
-סמינר זה ייחשב כסמינר שמיעה לתלמידי תואר שני ושלישי-
This Seminar Is Considered A Hearing Seminar For Msc/Phd Students-
הרישום לסמינר יבוצע בתחילת הסמינר באמצעות סריקת הברקוד למודל (יש להיכנס לפני כן למודל, לא באמצעות האפליקציה)
Registration to the seminar is done at the beginning of the seminar by scanning the barcode for the Moodle (Please enter ahead to the Moodle, NOT by application)
