8 papers
Efficient Discrete Position Design for Movable Antenna Systems: Low Complexity and Robustness
Haonan Wang, Xianghao Yu, Rui Wang +2
Building on advances in reconfigurable antenna techniques, movable antennas (MAs) can dynamically reshape antenna arrays and introduce additional spatial degrees of freedom (DoFs),…
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 Multi-User Communications via Polar-Domain Beamfocusing: Analytical Framework and Performance Analysis
Lin Chen, Ahmed Elzanaty, Mustafa A. Kishk +1
As wireless systems evolve toward higher frequencies and extremely large antenna arrays, near-field (NF) propagation becomes increasingly dominant. Unlike far-field (FF) communicat…
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…
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…