Search Results for author: Zhaohui Li

Found 9 papers, 1 papers with code

Simplified Self-homodyne Coherent System Based on Alamouti Coding and Digital Subcarrier Multiplexing

no code implementations18 Mar 2024 Wei Wang, Dongdong Zou, Zhenpeng Wu, Qi Sui, Xingwen Yi, Fan Li, Chao Lu, Zhaohui Li

Coherent technology inherent with more availabledegrees of freedom is deemed a competitive solution for nextgeneration ultra-high-speed short-reach optical interconnects. However, the fatal barriers to implementing the conventiona. coherent system in short-reach optical interconnect are the costfootprint, and power consumption.

AudioFormer: Audio Transformer learns audio feature representations from discrete acoustic codes

no code implementations14 Aug 2023 Zhaohui Li, Haitao Wang, Xinghua Jiang

In our experiments, we treat discrete acoustic codes as textual data and train a masked language model using a cloze-like methodology, ultimately deriving high-quality audio representations.

Audio Classification Language Modelling +1

Theoretical Evaluation of the Capacity-Achieving Distribution for IM-DD Fiber-Optic Channels

no code implementations23 Feb 2023 Dongdong Zou, Wei Wang, Sui Qi, Fan Li, Zhaohui Li

For the IM-DD system under peak power constraint (PPC), a dynamic-assignment BA algorithm is applied to find the capacity-achieving distribution with minimum cardinality.

A Bayesian Robust Regression Method for Corrupted Data Reconstruction

no code implementations24 Dec 2022 Zheyi Fan, Zhaohui Li, Jingyan Wang, Dennis K. J. Lin, Xiao Xiong, Qingpei Hu

Because of the widespread existence of noise and data corruption, recovering the true regression parameters with a certain proportion of corrupted response variables is an essential task.

regression

Parameter Inference based on Gaussian Processes Informed by Nonlinear Partial Differential Equations

1 code implementation22 Dec 2022 Zhaohui Li, Shihao Yang, Jeff Wu

Many methods for PDE parameter inference involve a large number of evaluations for numerical solutions to PDE through algorithms such as the finite element method, which can be time-consuming, especially for nonlinear PDEs.

Gaussian Processes Uncertainty Quantification

CD and PMD Effect on Cyclostationarity-Based Timing Recovery for Optical Coherent Receivers

no code implementations30 Aug 2022 Dawei Wang, Meng Qiao, Kunjian Lian, Zhaohui Li

Timing recovery is critical for synchronizing the clocks at the transmitting and receiving ends of a digital coherent communication system.

Low-Complexity Multicast Beamforming for Millimeter Wave Communications

no code implementations12 Mar 2022 Zhaohui Li, Chenhao Qi, Geoffrey Ye Li

To develop a low-complexity multicast beamforming method for millimeter wave communications, we first propose a channel gain estimation method in this article.

Record Capacity-Reach of C band IM/DD Optical Systems over Dispersion-Uncompensated Links

no code implementations13 Dec 2021 Haide Wang, Ji Zhou, Jinlong Wei, Wenxuan Mo, Yuanhua Feng, Weiping Liu, Changyuan Yu, Zhaohui Li

We experimentally demonstrate a C band 100Gbit/s intensity modulation and direct detection entropy-loaded multi-rate Nyquist-subcarrier modulation signal over 100km dispersion-uncompensated link.

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