Search Results for author: Meixia Tao

Found 16 papers, 1 papers with code

WDMoE: Wireless Distributed Large Language Models with Mixture of Experts

no code implementations6 May 2024 Nan Xue, Yaping Sun, Zhiyong Chen, Meixia Tao, Xiaodong Xu, Liang Qian, Shuguang Cui, Ping Zhang

In this paper, we propose a wireless distributed LLMs paradigm based on Mixture of Experts (MoE), named WDMoE, deploying LLMs collaboratively across edge servers of base station (BS) and mobile devices in the wireless communications system.

Deep Learning for Joint Design of Pilot, Channel Feedback, and Hybrid Beamforming in FDD Massive MIMO-OFDM Systems

no code implementations10 Dec 2023 Junyi Yang, Weifeng Zhu, Shu Sun, Xiaofeng Li, Xingqin Lin, Meixia Tao

This letter considers the transceiver design in frequency division duplex (FDD) massive multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems for high-quality data transmission.

Optimization of RIS Placement for Satellite-to-Ground Coverage Enhancement

no code implementations6 Nov 2023 Xingchen Liu, Liuxun Xue, Shu Sun, Meixia Tao

In satellite-to-ground communication, ensuring reliable and efficient connectivity poses significant challenges.

How to Differentiate between Near Field and Far Field: Revisiting the Rayleigh Distance

no code implementations23 Sep 2023 Shu Sun, Renwang Li, Xingchen Liu, Liuxun Xue, Chong Han, Meixia Tao

Future wireless communication systems are likely to adopt extremely large aperture arrays and millimeter-wave/sub-THz frequency bands to achieve higher throughput, lower latency, and higher energy efficiency.

Hierarchical Beam Alignment for Millimeter-Wave Communication Systems: A Deep Learning Approach

no code implementations23 Aug 2023 Junyi Yang, Weifeng Zhu, Meixia Tao, Shu Sun

Fast and precise beam alignment is crucial for high-quality data transmission in millimeter-wave (mmWave) communication systems, where large-scale antenna arrays are utilized to overcome the severe propagation loss.

Vertical Federated Learning over Cloud-RAN: Convergence Analysis and System Optimization

no code implementations4 May 2023 Yuanming Shi, Shuhao Xia, Yong Zhou, Yijie Mao, Chunxiao Jiang, Meixia Tao

To improve the learning performance, we establish a system optimization framework by joint transceiver and fronthaul quantization design, for which successive convex approximation and alternate convex search based system optimization algorithms are developed.

Quantization Vertical Federated Learning

Cooperative Multi-Cell Massive Access with Temporally Correlated Activity

no code implementations19 Apr 2023 Weifeng Zhu, Meixia Tao, Xiaojun Yuan, Fan Xu, Yunfeng Guan

This paper investigates the problem of activity detection and channel estimation in cooperative multi-cell massive access systems with temporally correlated activity, where all access points (APs) are connected to a central unit via fronthaul links.

Action Detection Activity Detection +1

Deep Learning for Hierarchical Beam Alignment in mmWave Communication Systems

no code implementations8 Sep 2022 Junyi Yang, Weifeng Zhu, Meixia Tao

In this work, we propose a novel deep learning based hierarchical beam alignment method that learns two tiers of probing codebooks (PCs) and uses their measurements to predict the optimal beam in a coarse-to-fine searching manner.

Predictive GAN-powered Multi-Objective Optimization for Hybrid Federated Split Learning

no code implementations2 Sep 2022 Benshun Yin, Zhiyong Chen, Meixia Tao

In contrast, split learning (SL) can reduce the computing load of devices by using model splitting and assignment, but increase the communication burden to transmit intermediate results.

Federated Learning Generative Adversarial Network

Learning Based Joint Coding-Modulation for Digital Semantic Communication Systems

no code implementations11 Aug 2022 Yufei Bo, Yiheng Duan, Shuo Shao, Meixia Tao

The intrinsic mechanism of neural network based digital modulation is mapping continuous output of the neural network encoder into discrete constellation symbols, which is a non-differentiable function that cannot be trained with existing gradient descend algorithms.

Fundamental Limits of Communication Efficiency for Model Aggregation in Distributed Learning: A Rate-Distortion Approach

no code implementations28 Jun 2022 Naifu Zhang, Meixia Tao, Jia Wang, Fan Xu

One of the main focuses in distributed learning is communication efficiency, since model aggregation at each round of training can consist of millions to billions of parameters.

Model Compression Quantization

Double-Sided Information Aided Temporal-Correlated Massive Access

no code implementations16 May 2022 Weifeng Zhu, Meixia Tao, Yunfeng Guan

This letter considers temporal-correlated massive access, where each device, once activated, is likely to transmit continuously over several consecutive frames.

Action Detection Activity Detection

Deep Learning-Enabled Semantic Communication Systems with Task-Unaware Transmitter and Dynamic Data

1 code implementation30 Apr 2022 Hongwei Zhang, Shuo Shao, Meixia Tao, Xiaoyan Bi, Khaled B. Letaief

In practice, the semantic information is defined by the pragmatic task of the receiver and cannot be known to the transmitter.

Domain Adaptation Transfer Learning

Sum-Rate-Distortion Function for Indirect Multiterminal Source Coding in Federated Learning

no code implementations21 Jan 2021 Naifu Zhang, Meixia Tao, Jia Wang

In FL, however, the model update is an indirect multi-terminal source coding problem, also called as the CEO problem where each edge device cannot observe directly the gradient that is to be reconstructed at the decoder, but is rather provided only with a noisy version.

Decoder Federated Learning

Deep Learning for Wireless Coded Caching with Unknown and Time-Variant Content Popularity

no code implementations21 Aug 2020 Zhe Zhang, Meixia Tao

This approach, on one hand, can learn the caching policy in continuous action space by using the actor-critic architecture.

Clustering

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