10 papers
Scalable High-Precision Near-Field Channel Parameter Estimation via Spatial Chirp Structure
Lin Chen, Xiaojun Yuan, Ying-Jun Angela Zhang
This paper presents a scalable framework for high-precision near-field multipath channel parameter estimation in extremely large antenna array (ELAA) systems, enabling joint recove…
Wireless Intelligence Needs a Cerebellum: Score-Based Foundation Models Toward Real-Time Physical-Layer Inference
Chang Cai, Boyu Teng, Xiaojun Yuan +1
Wireless intelligence requires not only large foundation models for network-wide planning and decision-making, but also a compact "cerebellum" for fast and precise physical-layer i…
FedCova: Robust Federated Covariance Learning Against Noisy Labels
Xiangyu Zhong, Xiaojun Yuan, Ying-Jun Angela Zhang
Noisy labels in distributed datasets induce severe local overfitting and consequently compromise the global model in federated learning (FL). Most existing solutions rely on select…
Near-Field Position and Orientation Tracking With Hybrid ELAA Architecture
Lin Chen, Xiaojun Yuan, Ying-Jun Angela Zhang
This paper investigates near-field (NF) position and orientation tracking of a multi-antenna mobile station (MS) using an extremely large antenna array (ELAA)-equipped base station…
Score-Based Turbo Message Passing for Plug-and-Play Compressive Imaging
Chang Cai, Hao Jiang, Xiaojun Yuan +1
Message-passing algorithms have been adapted for compressive imaging by incorporating various off-the-shelf image denoisers. However, these denoisers rely largely on generic or han…
Joint Activity Detection and Channel Estimation for Massive Connectivity: Where Message Passing Meets Score-Based Generative Priors
Chang Cai, Wenjun Jiang, Xiaojun Yuan +1
Massive connectivity supports the sporadic access of a vast number of devices without requiring prior permission from the base station (BS). In such scenarios, the BS must perform…
Traversing Distortion-Perception Tradeoff using a Single Score-Based Generative Model
Yuhan Wang, Suzhi Bi, Ying-Jun Angela Zhang +1
The distortion-perception (DP) tradeoff reveals a fundamental conflict between distortion metrics (e.g., MSE and PSNR) and perceptual quality. Recent research has increasingly conc…
Score-Based Turbo Message Passing for Plug-and-Play Compressive Image Recovery
Chang Cai, Xiaojun Yuan, Ying-Jun Angela Zhang
Message passing algorithms have been tailored for compressive imaging applications by plugging in different types of off-the-shelf image denoisers. These off-the-shelf denoisers mo…
End-to-End Learning for Task-Oriented Semantic Communications Over MIMO Channels: An Information-Theoretic Framework
Chang Cai, Xiaojun Yuan, Ying-Jun Angela Zhang
This paper addresses the problem of end-to-end (E2E) design of learning and communication in a task-oriented semantic communication system. In particular, we consider a multi-devic…
Multi-Device Task-Oriented Communication via Maximal Coding Rate Reduction
Chang Cai, Xiaojun Yuan, Ying-Jun Angela Zhang
In task-oriented communications, most existing work designed the physical-layer communication modules and learning based codecs with distinct objectives: learning is targeted at ac…