Search Results for author: Ying-Jun Angela Zhang

Found 18 papers, 6 papers with code

Green Edge AI: A Contemporary Survey

no code implementations1 Dec 2023 Yuyi Mao, Xianghao Yu, Kaibin Huang, Ying-Jun Angela Zhang, Jun Zhang

Guided by these principles, we then explore energy-efficient design methodologies for the three critical tasks in edge AI systems, including training data acquisition, edge training, and edge inference.

Multi-Device Task-Oriented Communication via Maximal Coding Rate Reduction

1 code implementation6 Sep 2023 Chang Cai, Xiaojun Yuan, Ying-Jun Angela Zhang

In this paper, we consider a task-oriented multi-device edge inference system over a multiple-input multiple-output (MIMO) multiple-access channel, where the learning (i. e., feature encoding and classification) and communication (i. e., precoding) modules are designed with the same goal of inference accuracy maximization.

Differentially Private Over-the-Air Federated Learning Over MIMO Fading Channels

no code implementations19 Jun 2023 Hang Liu, Jia Yan, Ying-Jun Angela Zhang

Consequently, relying solely on communication noise, as done in the multiple-input single-output system, cannot meet high privacy requirements, and a device-side privacy-preserving mechanism is necessary for optimal DP design.

Federated Learning Privacy Preserving

Deployment Optimization of Dual-functional UAVs for Integrated Localization and Communication

no code implementations12 Sep 2022 Zheyuan Yang, Suzhi Bi, Ying-Jun Angela Zhang

In emergency scenarios, unmanned aerial vehicles (UAVs) can be deployed to assist localization and communication services for ground terminals.

CFLIT: Coexisting Federated Learning and Information Transfer

no code implementations26 Jul 2022 Zehong Lin, Hang Liu, Ying-Jun Angela Zhang

We propose a coexisting federated learning and information transfer (CFLIT) communication framework, where the FL and IT devices share the wireless spectrum in an OFDM system.

Federated Learning

Reconfigurable Intelligent Surface Empowered Over-the-Air Federated Edge Learning

no code implementations6 Sep 2021 Hang Liu, Zehong Lin, Xiaojun Yuan, Ying-Jun Angela Zhang

Federated edge learning (FEEL) has emerged as a revolutionary paradigm to develop AI services at the edge of 6G wireless networks as it supports collaborative model training at a massive number of mobile devices.

Relay-Assisted Cooperative Federated Learning

1 code implementation20 Jul 2021 Zehong Lin, Hang Liu, Ying-Jun Angela Zhang

Then, we analyze the model aggregation error in a single-relay case and show that our relay-assisted scheme achieves a smaller error than the one without relays provided that the relay transmit power and the relay channel gains are sufficiently large.

Federated Learning

Optimal Model Placement and Online Model Splitting for Device-Edge Co-Inference

no code implementations28 May 2021 Jia Yan, Suzhi Bi, Ying-Jun Angela Zhang

In practice, the DNN model is re-trained and updated periodically at the edge server.

Dynamic Trajectory and Offloading Control of UAV-enabled MEC under User Mobility

no code implementations19 May 2021 Zheyuan Yang, Suzhi Bi, Ying-Jun Angela Zhang

In this paper, we consider a UAV-enabled MEC platform that serves multiple mobile ground users with random movements and task arrivals.

Stochastic Optimization

Temporal-Structure-Assisted Gradient Aggregation for Over-the-Air Federated Edge Learning

no code implementations3 Mar 2021 Dian Fan, Xiaojun Yuan, Ying-Jun Angela Zhang

In this paper, we investigate over-the-air model aggregation in a federated edge learning (FEEL) system.

CSIT-Free Model Aggregation for Federated Edge Learning via Reconfigurable Intelligent Surface

no code implementations22 Feb 2021 Hang Liu, Xiaojun Yuan, Ying-Jun Angela Zhang

We study over-the-air model aggregation in federated edge learning (FEEL) systems, where channel state information at the transmitters (CSIT) is assumed to be unavailable.

Image Classification

Semi-Blind Cascaded Channel Estimation for Reconfigurable Intelligent Surface Aided Massive MIMO

no code implementations18 Jan 2021 Zhen-Qing He, Hang Liu, Xiaojun Yuan, Ying-Jun Angela Zhang, Ying-Chang Liang

In a RIS-aided MIMO system, the acquisition of channel state information (CSI) is important for achieving passive beamforming gains of the RIS, but is also challenging due to the cascaded property of the transmitter-RIS-receiver channel and the lack of signal processing capability of the passive RIS elements.

Bayesian Inference Information Theory Information Theory

Reconfigurable Intelligent Surface Enabled Federated Learning: A Unified Communication-Learning Design Approach

1 code implementation20 Nov 2020 Hang Liu, Xiaojun Yuan, Ying-Jun Angela Zhang

However, due to the heterogeneity of communication capacities among edge devices, over-the-air FL suffers from the straggler issue in which the device with the weakest channel acts as a bottleneck of the model aggregation performance.

Federated Learning

Lyapunov-guided Deep Reinforcement Learning for Stable Online Computation Offloading in Mobile-Edge Computing Networks

1 code implementation3 Oct 2020 Suzhi Bi, Liang Huang, Hui Wang, Ying-Jun Angela Zhang

In particular, we aim to design an online computation offloading algorithm to maximize the network data processing capability subject to the long-term data queue stability and average power constraints.

Edge-computing Networking and Internet Architecture

Reconfigurable-Intelligent-Surface Empowered Wireless Communications: Challenges and Opportunities

1 code implementation2 Jan 2020 Xiaojun Yuan, Ying-Jun Angela Zhang, Yuanming Shi, Wenjing Yan, Hang Liu

Reconfigurable intelligent surfaces (RISs) are regarded as a promising emerging hardware technology to improve the spectrum and energy efficiency of wireless networks by artificially reconfiguring the propagation environment of electromagnetic waves.

Information Theory Signal Processing Information Theory

The Roadmap to 6G -- AI Empowered Wireless Networks

no code implementations26 Apr 2019 Khaled B. Letaief, Wei Chen, Yuanming Shi, Jun Zhang, Ying-Jun Angela Zhang

The recent upsurge of diversified mobile applications, especially those supported by Artificial Intelligence (AI), is spurring heated discussions on the future evolution of wireless communications.

Deep Reinforcement Learning for Online Offloading in Wireless Powered Mobile-Edge Computing Networks

4 code implementations6 Aug 2018 Liang Huang, Suzhi Bi, Ying-Jun Angela Zhang

To tackle this problem, we propose in this paper a Deep Reinforcement learning-based Online Offloading (DROO) framework that implements a deep neural network to generate offloading decisions.

Networking and Internet Architecture

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