Search Results for author: Xianghao Yu

Found 14 papers, 3 papers with code

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 D. 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

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.

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.

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.

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.

Augmented Deep Unfolding for Downlink Beamforming in Multi-cell Massive MIMO With Limited Feedback

no code implementations3 Sep 2022 Yifan Ma, Xianghao Yu, Jun Zhang, S. H. Song, Khaled B. Letaief

In limited feedback multi-user multiple-input multiple-output (MU-MIMO) cellular networks, users send quantized information about the channel conditions to the associated base station (BS) for downlink beamforming.

Quantization

Intelligent Reflecting Surface-Aided Maneuvering Target Sensing: True Velocity Estimation

no code implementations30 Jul 2022 Lei Xie, Xianghao Yu, S. H. Song

Maneuvering target sensing will be an important service of future vehicular networks, where precise velocity estimation is one of the core tasks.

Hybrid Far- and Near-Field Channel Estimation for THz Ultra-Massive MIMO via Fixed Point Networks

1 code implementation10 May 2022 Wentao Yu, Yifei Shen, Hengtao He, Xianghao Yu, Jun Zhang, Khaled B. Letaief

We draw inspirations from fixed point theory to develop an efficient deep learning based channel estimator with adaptive complexity and linear convergence guarantee.

Learn to Communicate with Neural Calibration: Scalability and Generalization

no code implementations1 Oct 2021 Yifan Ma, Yifei Shen, Xianghao Yu, Jun Zhang, S. H. Song, Khaled B. Letaief

Furthermore, such networks will vary dynamically in a significant way, which makes it intractable to develop comprehensive analytical models.

Computational Efficiency Management

Neural Calibration for Scalable Beamforming in FDD Massive MIMO with Implicit Channel Estimation

no code implementations3 Aug 2021 Yifan Ma, Yifei Shen, Xianghao Yu, Jun Zhang, S. H. Song, Khaled B. Letaief

Channel estimation and beamforming play critical roles in frequency-division duplexing (FDD) massive multiple-input multiple-output (MIMO) systems.

Communication-Efficient Federated Learning with Dual-Side Low-Rank Compression

no code implementations26 Apr 2021 Zhefeng Qiao, Xianghao Yu, Jun Zhang, Khaled B. Letaief

Federated learning (FL) is a promising and powerful approach for training deep learning models without sharing the raw data of clients.

Federated Learning Low-rank compression

Cannot find the paper you are looking for? You can Submit a new open access paper.