Search Results for author: Xiaodong Xu

Found 9 papers, 1 papers with code

Non-orthogonal multiple access enhanced multi-user semantic communication

no code implementations12 Mar 2023 Weizhi Li, Haotai Liang, Chen Dong, Xiaodong Xu, Ping Zhang, Kaijun Liu

Semantic communication serves as a novel paradigm and attracts the broad interest of researchers.

A Specific Task-oriented Semantic Image Communication System for substation patrol inspection

no code implementations9 Jan 2023 Senran Fan, Haotai Liang, Chen Dong, Xiaodong Xu, Geng Liu

Inspired by that only some specific details of the image are needed in such substation patrol inspection task, we proposed a new paradigm of semantic enhancement in such specific task to ensure the clarity of key semantic information when facing a lower bit rate or a low signal-to-noise ratio situation.

Image Compression

Graph Neural Networks for Distributed Power Allocation in Wireless Networks: Aggregation Over-the-Air

1 code implementation18 Jul 2022 Yifan Gu, Changyang She, Zhi Quan, Chen Qiu, Xiaodong Xu

In this paper, we aim to design low signaling overhead distributed power allocation schemes by using graph neural networks (GNNs), which are scalable to the number of wireless links.

Graph Embedding

Innovative semantic communication system

no code implementations19 Feb 2022 Chen Dong, Haotai Liang, Xiaodong Xu, Shujun Han, Bizhu Wang, Ping Zhang

In particular, the semantic communication system for image, namely AESC-I, is designed to verify the feasibility of the new paradigm.

Defect-Induced Magnetic Skyrmion in Two-Dimensional Chromium Tri-Iodide Monolayer

no code implementations4 Mar 2021 Ryan A. Beck, Lixin Lu, Peter V. Sushko, Xiaodong Xu, Xiaosong Li

Chromium iodide monolayers, which have different magnetic properties in comparison to the bulk chromium iodide, have been shown to form skyrmionic states in applied electromagnetic fields or in Janus-layer devices.

Computational Physics Materials Science

Competing correlated states and abundant orbital magnetism in twisted monolayer-bilayer graphene

no code implementations11 Jan 2021 Minhao He, Ya-Hui Zhang, Yuhao Li, Zaiyao Fei, Kenji Watanabe, Takashi Taniguchi, Xiaodong Xu, Matthew Yankowitz

Flat band moir\'e superlattices have recently emerged as unique platforms for investigating the interplay between strong electronic correlations, nontrivial band topology, and multiple isospin 'flavor' symmetries.

Strongly Correlated Electrons Mesoscale and Nanoscale Physics Materials Science

Nematic Fluctuations in an Orbital Selective Superconductor Fe$_{1+y}$Te$_{1-x}$Se$_{x}$

no code implementations29 Jun 2020 Qianni Jiang, Yue Shi, Morten H. Christensen, Joshua Sanchez, Bevin Huang, Zhong Lin, Zhaoyu Liu, Paul Malinowski, Xiaodong Xu, Rafael M. Fernandes, Jiun-Haw Chu

Near $x = 0$, in proximity to the double-stripe magnetic order of Fe$_{1+y}$Te, a diverging $B_{1g}$ nematic susceptibility is observed.

Superconductivity Strongly Correlated Electrons

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