5 papers · 1 filter
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…
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…
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…
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…