Search Results for author: Xuhui Zhang

Found 15 papers, 2 papers with code

Retrieval-Augmented Generation for Mobile Edge Computing via Large Language Model

no code implementations30 Dec 2024 Runtao Ren, Yinyu Wu, Xuhui Zhang, Jinke Ren, Yanyan Shen, Shuqiang Wang, Kim-Fung Tsang

Specifically, a latency minimization problem is first proposed to jointly optimize the data offloading ratio, transmit power allocation, and computing resource allocation.

Edge-computing Information Retrieval +4

When UAV Meets Federated Learning: Latency Minimization via Joint Trajectory Design and Resource Allocation

no code implementations10 Dec 2024 Xuhui Zhang, Wenchao Liu, Jinke Ren, Huijun Xing, Gui Gui, Yanyan Shen, Shuguang Cui

Federated learning (FL) has emerged as a pivotal solution for training machine learning models over wireless networks, particularly for Internet of Things (IoT) devices with limited computation resources.

Federated Learning

Hierarchical Learning for IRS-Assisted MEC Systems with Rate-Splitting Multiple Access

no code implementations5 Dec 2024 Yinyu Wu, Xuhui Zhang, Jinke Ren, Yanyan Shen, Bo Yang, Shuqiang Wang, Xinping Guan, Dusit Niyato

Intelligent reflecting surface (IRS)-assisted mobile edge computing (MEC) systems have shown notable improvements in efficiency, such as reduced latency, higher data rates, and better energy efficiency.

Deep Reinforcement Learning Edge-computing

Energy-Efficient Multi-UAV-Enabled MEC Systems with Space-Air-Ground Integrated Networks

no code implementations23 Sep 2024 Wenchao Liu, Xuhui Zhang, Jinke Ren, Yanyan Shen, Shuqiang Wang, Bo Yang, Xinping Guan, Shuguang Cui

With the development of artificial intelligence integrated next-generation communication networks, mobile users (MUs) are increasingly demanding the efficient processing of computation-intensive and latency-sensitive tasks.

Edge-computing

UAV-Enabled Data Collection for IoT Networks via Rainbow Learning

no code implementations22 Sep 2024 Yingchao Jiao, Xuhui Zhang, Wenchao Liu, Yinyu Wu, Jinke Ren, Yanyan Shen, Bo Yang, Xinping Guan

This letter considers a scenario where a multi-antenna UAV is dispatched to simultaneously collect data from multiple ground IoT nodes (GNs) within a time interval.

Deep Reinforcement Learning Scheduling

Latency-Aware Resource Allocation for Mobile Edge Generation and Computing via Deep Reinforcement Learning

no code implementations4 Aug 2024 Yinyu Wu, Xuhui Zhang, Jinke Ren, Huijun Xing, Yanyan Shen, Shuguang Cui

Recently, the integration of mobile edge computing (MEC) and generative artificial intelligence (GAI) technology has given rise to a new area called mobile edge generation and computing (MEGC), which offers mobile users heterogeneous services such as task computing and content generation.

Deep Reinforcement Learning Edge-computing

Movable-Antenna Array Empowered ISAC Systems for Low-Altitude Economy

no code implementations11 Jun 2024 Ziming Kuang, Wenchao Liu, Chunjie Wang, Zhenzhen Jin, Jinke Ren, Xuhui Zhang, Yanyan Shen

This paper investigates a movable-antenna (MA) array empowered integrated sensing and communications (ISAC) over low-altitude platform (LAP) system to support low-altitude economy (LAE) applications.

Joint Association, Beamforming, and Resource Allocation for Multi-IRS Enabled MU-MISO Systems With RSMA

no code implementations5 Jun 2024 Chunjie Wang, Xuhui Zhang, Huijun Xing, Liang Xue, Shuqiang Wang, Yanyan Shen, Bo Yang, Xinping Guan

Intelligent reflecting surface (IRS) and rate-splitting multiple access (RSMA) technologies are at the forefront of enhancing spectrum and energy efficiency in the next generation multi-antenna communication systems.

Scheduling

UAV-Enabled Wireless Networks with Movable-Antenna Array: Flexible Beamforming and Trajectory Design

no code implementations31 May 2024 Wenchao Liu, Xuhui Zhang, Huijun Xing, Jinke Ren, Yanyan Shen, Shuguang Cui

Recently, movable antenna (MA) array becomes a promising technology for improving the communication quality in wireless communication systems.

Position

Joint Signal Detection and Automatic Modulation Classification via Deep Learning

1 code implementation29 Apr 2024 Huijun Xing, Xuhui Zhang, Shuo Chang, Jinke Ren, Zixun Zhang, Jie Xu, Shuguang Cui

Different from prior works that investigate them independently, this paper studies the joint signal detection and automatic modulation classification (AMC) by considering a realistic and complex scenario, in which multiple signals with different modulation schemes coexist at different carrier frequencies.

Deep Learning

A Class of Geometric Structures in Transfer Learning: Minimax Bounds and Optimality

no code implementations23 Feb 2022 Xuhui Zhang, Jose Blanchet, Soumyadip Ghosh, Mark S. Squillante

In contrast, our study first illustrates the benefits of incorporating a natural geometric structure within a linear regression model, which corresponds to the generalized eigenvalue problem formed by the Gram matrices of both domains.

Transfer Learning

Time-Series Imputation with Wasserstein Interpolation for Optimal Look-Ahead-Bias and Variance Tradeoff

no code implementations25 Feb 2021 Jose Blanchet, Fernando Hernandez, Viet Anh Nguyen, Markus Pelger, Xuhui Zhang

Imputation methods in time-series data often are applied to the full panel data with the purpose of training a model for a downstream out-of-sample task.

Imputation Portfolio Optimization +2

Distributionally Robust Parametric Maximum Likelihood Estimation

1 code implementation NeurIPS 2020 Viet Anh Nguyen, Xuhui Zhang, Jose Blanchet, Angelos Georghiou

We consider the parameter estimation problem of a probabilistic generative model prescribed using a natural exponential family of distributions.

Machine Learning's Dropout Training is Distributionally Robust Optimal

no code implementations13 Sep 2020 Jose Blanchet, Yang Kang, Jose Luis Montiel Olea, Viet Anh Nguyen, Xuhui Zhang

This paper shows that dropout training in Generalized Linear Models is the minimax solution of a two-player, zero-sum game where an adversarial nature corrupts a statistician's covariates using a multiplicative nonparametric errors-in-variables model.

Latent Variable Discovery Using Dependency Patterns

no code implementations22 Jul 2016 Xuhui Zhang, Kevin B. Korb, Ann E. Nicholson, Steven Mascaro

The causal discovery of Bayesian networks is an active and important research area, and it is based upon searching the space of causal models for those which can best explain a pattern of probabilistic dependencies shown in the data.

Causal Discovery

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