2022年6月10日 · Abstract: Multipath interference (MPI) noise suppression is crucial for high-speed 4-level pulse amplitude modulation (PAM4) intensity modulation direct detection (IMDD) …

2015年6月1日 · 100-Gb/s PAM4 optical links based on cascaded silicon modulators and DSP-based receivers are comprehensively modeled. Simulation results highlight the impact of key …

MPI 是英文 Multi Path Interference 的缩写，是指光纤线路由于多个大的反射存在，造成光信号在线路中来回反射叠加从而对正常信号造成影响。 MPI 过大，容易造成误码率升高，甚至链路 …

We experimentally demonstrate two multi-path-interference (MPI) mitigation algorithms that can effectively suppress the MPI noise in 56Gb/s PAM4 signal transmission over 15.5km SSMF …

We have developed an efficient multipath interference (MPI) mitigation method based on spectrum inversion and root-raised cosine filtering. Simulations have verified that this scheme …

2023年10月24日 · 多径干扰（mpi）会导致四级脉冲幅度调制（pam4）信号出现不规则波动，从而影响传输性能。 本文提出了一种自适应决策阈值（ADT）方案来动态更新决策阈值，可以 …

List of proposed steps for PAM4 link budget harmonization. 1. MPI should be included into the power budget as done for 400GBASE-DR4 already. 2. Achievable TX/RX reflectances need to …

Ref [1] analyzes MPI with frequency-domain tools, analogous to RIN(f). Computed by taking the Fourier transform of the autocorrelation of the time-domain noise term. Power spectrum is …

Current research frontier is low noise 50GHz+ bandwidths which is well beyond what we need for 100Gb/s/l. PAM4 (~30GHz). 1dB Path penalty for MPI and CD is sufficient.

This Letter proposes an adaptive decision threshold (ADT) scheme to dynamically update the decision threshold, which can track the signal fluctuations in real time and mitigate the impact …