A novel method for PAM-4 signal quality estimation using asynchronous eye diagram reconstruction
Journal
2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017
Journal Volume
2017-November
Pages
1-2
Date Issued
2017
Author(s)
Abstract
We present a simple and low-cost method for estimating the symbol error rate (SER) and bit error rate (BER) for 4-ary pulse amplitude modulation (PAM-4) signals from the reconstructed eye diagrams obtained by using asynchronous sampling technique. The reconstructed PAM-4 eye diagram is divided into three separate sub-eyes. The optimal sampling position of the signal phase is obtained by overlapping these three sub-eyes to locate the time instance with the largest eye-opening. The calculated SER and BER are close to the simulated results.
Type
conference paper