FPGA Implementation of Multi-Layer Machine Learning Equalizer with On-Chip Training
- Resource Type
- Conference
- Authors
- Liu, Keren; Borjeson, Erik; Hager, Christian; Larsson-Edefors, Per
- Source
- 2023 Optical Fiber Communications Conference and Exhibition (OFC) Optical Fiber Communications Conference and Exhibition (OFC), 2023. :1-3 Mar, 2023
- Subject
- Communication, Networking and Broadcast Technologies
Photonics and Electrooptics
Training
Backpropagation
VHDL
Machine learning
Time-varying channels
Real-time systems
Optical fiber communication
- Language
We design and implement an adaptive machine learning equalizer that alternates multiple linear and nonlinear computational layers on an FPGA. On-chip training via gradient backpropagation is shown to allow for real-time adaptation to time-varying channel impairments.