Author

Jiawei Zhuang

3 papers indexed here

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Oct 2026

Joint Channel Estimation and Active User Detection for Massive Grant-Free Access in XL-MIMO System

The extra-large multiple-input–multiple-output (XL-MIMO) technique has demonstrated significant potential for future wireless communications. In this article, we investigate the joint channel estimation (CE) and active user detection (AUD) for massive grant-free access in XL-MIMO systems. The conventional efficient joi...

Jia-Wei Zhuang, Jiaqi Fang, Gang Sun et al. · IEEE Internet of Things Jour... · 0 citations

Preprint Jul 2026

Toward Alias-Free Channel Extrapolation in Upper Mid-Band Systems: A Spatial-Frequency-Temporal Tensor Learning Approach

A tensor-structure-aware axial-attention neural network (TANN), which integrates axis-wise attention with a lightweight multi-scale CNN-based gating module to incorporate support priors for ADD-domain de-aliasing, and yields a unified model that generalizes across pilot configurations without retraining.

Jia-Wei Zhuang, Hong-Wei Hou, Ya-Fei Wang et al. · 0 citations

Preprint Aug 2026

Toward Secure Communications for a UAV Swarm with Movable Antennas in SAGIN: CKM-Enabled Multi-Agent Reinforcement Learning Framework

This work investigates a SAGIN-enabled secure downlink communication system in which UAVs select service links among satellite, aerial, and terrestrial networks while adjusting the positions of the movable antenna (MA) array to fully exploit connectivity and spatial degrees of freedom for improved secrecy communication...

Jia-Yang Wan, Ya-Fei Wang, Jia-Wei Zhuang et al. · 0 citations