Noise Prediction and Cancellation Algorithm for the Bandwidth Limited PAM-4 System in the Presence of Intra-Channel Homodyne Crosstalk

As a low-complexity solution, this paper proposes the use of noise prediction and cancellation (NPC) algorithm in a PAM-4 system, which achieves similar performance as the MLSE based PAM-4 receiver and increases tolerance towards intra-channel homodyne crosstalk.