Search Results for author: Shenghui Song

Found 34 papers, 6 papers with code

A Tractable Approach to Massive Communication and Ubiquitous Connectivity in 6G Standardization

no code implementations19 Jun 2025 Junyi Jiang, Wei Chen, Xin Guo, Shenghui Song, Ying Jun, Zhang, Zhu Han, Merouane Debbah, Khaled B. Letaief

The full-scale 6G standardization has attracted considerable recent attention, especially since the first 3GPP-wide 6G workshop held in March 2025.

Multimodal Deep Learning-Empowered Beam Prediction in Future THz ISAC Systems

no code implementations5 May 2025 Kai Zhang, Wentao Yu, Hengtao He, Shenghui Song, Jun Zhang, Khaled B. Letaief

Integrated sensing and communication (ISAC) systems operating at terahertz (THz) bands are envisioned to enable both ultra-high data-rate communication and precise environmental awareness for next-generation wireless networks.

Beam Prediction Deep Learning +5

Multi-Modal Self-Supervised Semantic Communication

no code implementations18 Mar 2025 Hang Zhao, Hongru Li, Dongfang Xu, Shenghui Song, Khaled B. Letaief

Semantic communication is emerging as a promising paradigm that focuses on the extraction and transmission of semantic meanings using deep learning techniques.

Self-Supervised Learning Semantic Communication

Siamese Machine Unlearning with Knowledge Vaporization and Concentration

1 code implementation2 Dec 2024 Songjie Xie, Hengtao He, Shenghui Song, Jun Zhang, Khaled B. Letaief

In this work, we propose the concepts of knowledge vaporization and concentration to selectively erase learned knowledge from specific data points while maintaining representations for the remaining data.

Machine Unlearning

Toward Real-Time Edge AI: Model-Agnostic Task-Oriented Communication with Visual Feature Alignment

1 code implementation1 Dec 2024 Songjie Xie, Hengtao He, Shenghui Song, Jun Zhang, Khaled B. Letaief

Task-oriented communication presents a promising approach to improve the communication efficiency of edge inference systems by optimizing learning-based modules to extract and transmit relevant task information.

Federated Low-Rank Adaptation with Differential Privacy over Wireless Networks

no code implementations12 Nov 2024 Tianqu Kang, Zixin Wang, Hengtao He, Jun Zhang, Shenghui Song, Khaled B. Letaief

Fine-tuning large pre-trained foundation models (FMs) on distributed edge devices presents considerable computational and privacy challenges.

Federated Learning parameter-efficient fine-tuning

Sensing-aided Near-Field Secure Communications with Mobile Eavesdroppers

no code implementations25 Aug 2024 Yiming Xu, Mingxuan Zheng, Dongfang Xu, Shenghui Song, Daniel Benevides da Costa

The additional degree of freedom (DoF) in the distance domain of near-field communication offers new opportunities for physical layer security (PLS) design.

Integrated sensing and communication ISAC

FedAQ: Communication-Efficient Federated Edge Learning via Joint Uplink and Downlink Adaptive Quantization

no code implementations26 Jun 2024 Linping Qu, Shenghui Song, Chi-Ying Tsui

In this work, we introduce a holistic approach by joint uplink and downlink adaptive quantization to reduce the communication overhead.

Federated Learning Quantization

Energy-Efficient Channel Decoding for Wireless Federated Learning: Convergence Analysis and Adaptive Design

no code implementations26 Jun 2024 Linping Qu, Yuyi Mao, Shenghui Song, Chi-Ying Tsui

One of the most critical challenges for deploying distributed learning solutions, such as federated learning (FL), in wireless networks is the limited battery capacity of mobile clients.

Federated Learning

Low-Complexity CSI Feedback for FDD Massive MIMO Systems via Learning to Optimize

no code implementations24 Jun 2024 Yifan Ma, Hengtao He, Shenghui Song, Jun Zhang, Khaled B. Letaief

In frequency-division duplex (FDD) massive multiple-input multiple-output (MIMO) systems, the growing number of base station antennas leads to prohibitive feedback overhead for downlink channel state information (CSI).

Compressive Sensing Decoder

Tackling Distribution Shifts in Task-Oriented Communication with Information Bottleneck

1 code implementation15 May 2024 Hongru Li, Jiawei Shao, Hengtao He, Shenghui Song, Jun Zhang, Khaled B. Letaief

Specifically, we propose an invariant feature encoding approach based on the IB principle and IRM framework for domainshift generalization, which aims to find the causal relationship between the input data and task result by minimizing the complexity and domain dependence of the encoded feature.

image-classification Image Classification +1

Sensing-assisted Robust SWIPT for Mobile Energy Harvesting Receivers in Networked ISAC Systems

no code implementations15 Feb 2024 Yiming Xu, Dongfang Xu, Shenghui Song

Simultaneous wireless information and power transfer (SWIPT) has been proposed to offer communication services and transfer power to the energy harvesting receiver (EHR) concurrently.

Integrated sensing and communication ISAC +1

Approximate Message Passing-Enhanced Graph Neural Network for OTFS Data Detection

no code implementations15 Feb 2024 Wenhao Zhuang, Yuyi Mao, Hengtao He, Lei Xie, Shenghui Song, Yao Ge, Zhi Ding

Orthogonal time frequency space (OTFS) modulation has emerged as a promising solution to support high-mobility wireless communications, for which, cost-effective data detectors are critical.

Graph Neural Network

FedSDD: Scalable and Diversity-enhanced Distillation for Model Aggregation in Federated Learning

no code implementations28 Dec 2023 Ho Man Kwan, Shenghui Song

In particular, the teacher model in FedSDD is an ensemble built by a small group of aggregated (global) models, instead of all client models, such that the computation cost will not scale with the number of clients.

Diversity Federated Learning +1

Joint Channel Estimation and Cooperative Localization for Near-Field Ultra-Massive MIMO

no code implementations21 Dec 2023 Ruoxiao Cao, Hengtao He, Xianghao Yu, Shenghui Song, Kaibin Huang, Jun Zhang, Yi Gong, Khaled B. Letaief

To address the joint channel estimation and cooperative localization problem for near-field UM-MIMO systems, we propose a variational Newtonized near-field channel estimation (VNNCE) algorithm and a Gaussian fusion cooperative localization (GFCL) algorithm.

Bayes-Optimal Unsupervised Learning for Channel Estimation in Near-Field Holographic MIMO

no code implementations16 Dec 2023 Wentao Yu, Hengtao He, Xianghao Yu, Shenghui Song, Jun Zhang, Ross Murch, Khaled B. Letaief

In this paper, we address the fundamental challenge of designing a low-complexity Bayes-optimal channel estimator in near-field HMIMO systems operating in unknown EM environments.

Denoising

Learning Bayes-Optimal Channel Estimation for Holographic MIMO in Unknown EM Environments

no code implementations14 Nov 2023 Wentao Yu, Hengtao He, Xianghao Yu, Shenghui Song, Jun Zhang, Ross D. Murch, Khaled B. Letaief

Holographic MIMO (HMIMO) has recently been recognized as a promising enabler for future 6G systems through the use of an ultra-massive number of antennas in a compact space to exploit the propagation characteristics of the electromagnetic (EM) channel.

How Robust is Federated Learning to Communication Error? A Comparison Study Between Uplink and Downlink Channels

no code implementations25 Oct 2023 Linping Qu, Shenghui Song, Chi-Ying Tsui, Yuyi Mao

It is also shown that the uplink communication in FL can tolerate a higher bit error rate (BER) than downlink communication, and this difference is quantified by a proposed formula.

Federated Learning Privacy Preserving

Deep Learning for Near-Field XL-MIMO Transceiver Design: Principles and Techniques

no code implementations18 Sep 2023 Wentao Yu, Yifan Ma, Hengtao He, Shenghui Song, Jun Zhang, Khaled B. Letaief

Massive multiple-input multiple-output (MIMO) has been a critical enabling technology in 5th generation (5G) wireless networks.

Binary Federated Learning with Client-Level Differential Privacy

no code implementations7 Aug 2023 Lumin Liu, Jun Zhang, Shenghui Song, Khaled B. Letaief

To improve communication efficiency and achieve a better privacy-utility trade-off, we propose a communication-efficient FL training algorithm with differential privacy guarantee.

Federated Learning Privacy Preserving

Power Allocation for Device-to-Device Interference Channel Using Truncated Graph Transformers

no code implementations20 Jul 2023 Dohoon Kim, Shenghui Song

Power control for the device-to-device interference channel with single-antenna transceivers has been widely analyzed with both model-based methods and learning-based approaches.

Graph Neural Network

Local SGD Accelerates Convergence by Exploiting Second Order Information of the Loss Function

no code implementations24 May 2023 Linxuan Pan, Shenghui Song

However, existing analysis failed to explain why the multiple local updates with small mini-batches of data (L-SGD) can not be replaced by the update with one big batch of data and a larger learning rate (SGD).

Federated Learning

Task-Oriented Communication with Out-of-Distribution Detection: An Information Bottleneck Framework

1 code implementation21 May 2023 Hongru Li, Wentao Yu, Hengtao He, Jiawei Shao, Shenghui Song, Jun Zhang, Khaled B. Letaief

Task-oriented communication is an emerging paradigm for next-generation communication networks, which extracts and transmits task-relevant information, instead of raw data, for downstream applications.

Informativeness Out-of-Distribution Detection

Joint BS Selection, User Association, and Beamforming Design for Network Integrated Sensing and Communication

no code implementations9 May 2023 Yiming Xu, Dongfang Xu, Lei Xie, Shenghui Song

Different from conventional radar, the cellular network in the integrated sensing and communication (ISAC) system enables collaborative sensing by multiple sensing nodes, e. g., base stations (BSs).

Diversity Integrated sensing and communication +1

Message Passing Meets Graph Neural Networks: A New Paradigm for Massive MIMO Systems

1 code implementation14 Feb 2023 Hengtao He, Xianghao Yu, Jun Zhang, Shenghui Song, Khaled B. Letaief

As one of the core technologies for 5G systems, massive multiple-input multiple-output (MIMO) introduces dramatic capacity improvements along with very high beamforming and spatial multiplexing gains.

Graph Neural Network

An Adaptive and Robust Deep Learning Framework for THz Ultra-Massive MIMO Channel Estimation

1 code implementation29 Nov 2022 Wentao Yu, Yifei Shen, Hengtao He, Xianghao Yu, Shenghui Song, Jun Zhang, Khaled B. Letaief

For practical usage, the proposed framework is further extended to wideband THz UM-MIMO systems with beam squint effect.

Lightweight and Flexible Deep Equilibrium Learning for CSI Feedback in FDD Massive MIMO

no code implementations28 Nov 2022 Yifan Ma, Wentao Yu, Xianghao Yu, Jun Zhang, Shenghui Song, Khaled B. Letaief

In this paper, we propose a lightweight and flexible deep learning-based CSI feedback approach by capitalizing on deep equilibrium models.

Blind Performance Prediction for Deep Learning Based Ultra-Massive MIMO Channel Estimation

no code implementations15 Nov 2022 Wentao Yu, Hengtao He, Xianghao Yu, Shenghui Song, Jun Zhang, Khaled B. Letaief

Reliability is of paramount importance for the physical layer of wireless systems due to its decisive impact on end-to-end performance.

Iterative Sparse Recovery based Passive Localization in Perceptive Mobile Networks

no code implementations22 Aug 2022 Lei Xie, Shenghui Song

As a result, most existing methods require a large number of data samples to achieve an accurate estimate of the covariance matrix for the received signals, based on which a power spectrum is constructed for localization purposes.

SSBNet: Improving Visual Recognition Efficiency by Adaptive Sampling

no code implementations23 Jul 2022 Ho Man Kwan, Shenghui Song

Downsampling is widely adopted to achieve a good trade-off between accuracy and latency for visual recognition.

Dimensionality Reduction image-classification +3

FedDQ: Communication-Efficient Federated Learning with Descending Quantization

no code implementations5 Oct 2021 Linping Qu, Shenghui Song, Chi-Ying Tsui

Experimental results show that the proposed descending quantization scheme can save up to 65. 2% of the communicated bit volume and up to 68% of the communication rounds, when compared with existing schemes.

Federated Learning Model Compression +2

Hierarchical Federated Learning with Quantization: Convergence Analysis and System Design

no code implementations26 Mar 2021 Lumin Liu, Jun Zhang, Shenghui Song, Khaled B. Letaief

Hierarchical FL, with a client-edge-cloud aggregation hierarchy, can effectively leverage both the cloud server's access to many clients' data and the edge servers' closeness to the clients to achieve a high communication efficiency.

Federated Learning Quantization

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