A Discrete Multitone Wireline Transceiver With Clipping Ratio Optimization For ADC-Based High-Speed Serial Links

Abstract

In this paper, we investigated the relationship between clipping ratio and bit-error rate (BER) for a discrete multitone (DMT) wireline transceiver. The peak-to-average-power ratio (PAPR) controls the trade-off between signal-to-noise ratio (SNR) and non-linear distortion, such as clipping. The bit-errorrate (BER) performance degrades for both cases: high distortion due to the low PAPR and low SNR caused by the high PAPR. The optimal spot is obtained by conducting a sweep simulation on MATLAB software. The simulation results demonstrate that the 1E-6 order BER is achieved with the 160 Gb/s data rate and 12.3dB PAPR when communicating over a channel, exhibiting 18dB channel insertion loss (IL) at Nyquist frequency. © 2024 IEEE.