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Wen Chen

8 papers indexed

arxivcs.LGcs.AIcs.IT2026-07-22

Convergence-Latency-Aware Adaptive Modulation and Resource Allocation in RIS-Assisted Wireless Federated Learning

Liwei Wang, Wen Chen, Jun Li, Qingqing Wu, Ming Ding, Xusheng Zhu, et al.

Federated learning (FL) over wireless networks suffers from significant training latency and degraded convergence due to unreliable wireless transmission, especially under blocked propagation environments. Although reconfigurable intelligent surfaces (RISs) can improve communicat…

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arxiveess.SP2026-07-20

Constrained Tensor Decomposition-Based Target Sensing for Sparse Non-Uniform Array-Enabled AFDM ISAC Systems

Linchu Chen, Zhendong Li, Lin Chen, Zhou Su, Wenjie Wang, Wen Chen

Sparse non-uniform array-enabled affine frequency division multiplexing (AFDM) is a promising candidate for integrated sensing and communication (ISAC), while its performance critically depends on accurate target parameter estimation. In this paper, we propose a constrained tenso…

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arxiveess.SP2026-07-20

Transmit Beamforming Design for Integrated Sensing and Communication Using Transmissive RIS Transceiver

Yuan Guo, Wen Chen, Yang Liu, Qiong Wu, Weiren Zhu

Integrated sensing and communication (ISAC) is a key technology for future wireless networks, calling for hardware-efficient architectures to jointly support communication and sensing. In this paper, a transmissive reconfigurable intelligent surface (TRIS) transceiver is leverage…

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arxiveess.SP2026-07-20

Transmissive RIS Transceiver-Empowered ISAC Systems: Energy Efficiency Optimization for Perfect and Imperfect CSI

Yuan Guo, Wen Chen, Yang Liu, Kunlun Wang, Zhendong Li, Qiong Wu

In this paper, a novel transmissive reconfigurable intelligent surface (TRIS) transceiver is employed to enable an integrated sensing and communication (ISAC) system supporting both communication and sensing. Under both perfect and imperfect channel state information (CSI), we st…

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arxiveess.SP2026-07-20

Tensor-Based Dynamic Channel Estimation for mmWave Movable Antenna MIMO Systems

Zhendong Li, Linchu Chen, Lin Chen, Zhou Su, Ruoyu Zhang, Guangji Chen, et al.

This paper investigates the dynamic channel estimation algorithm in mmWave movable antenna (MA) multiple-input multiple-output (MIMO) systems. To achieve highly accurate channel estimation, we propose a tensor decomposition-based channel estimation algorithm. First, by leveraging…

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arxiveess.SP2026-07-02

Beyond Beamforming: Phase-and-Gain Channel Shaping via Rotatable Antenna Arrays

Xingxiang Peng, Qingqing Wu, Ziyuan Zheng, Wen Chen, Guangchi Zhang

This paper investigates geometry-reconfigurable transmission for multiuser communication systems enabled by a rotatable antenna array. In contrast to conventional fixed arrays, the proposed architecture jointly exploits array pose adjustment and element-level boresight steering,…

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arxiveess.SP2026-06-30

Sensing for Reliable UAV Communication: Robust Trajectory and Resource Optimization in Low-Altitude Networks

Yifan Jiang, Qingqing Wu, Hongxun Hui, Wen Chen, Wei Feng, Shanpu Shen

In low-altitude wireless networks, sensing-aided communication has emerged as a promising integrated sensing and communication (ISAC) paradigm for unmanned aerial vehicle (UAV) tracking and communication. This paper investigates reliable sensing-aided communication for multiple c…

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crossrefBioengineering2025-08-12Cited by 1

2.5D Deep Learning and Machine Learning for Discriminative DLBCL and IDC with Radiomics on PET/CT

Fei Liu, Wen Chen, Jianping Zhang, Jianling Zou, Bingxin Gu, Hongxing Yang, et al.

We aimed to establish non-invasive diagnostic models comparable to pathology testing and explore reliable digital imaging biomarkers to classify diffuse large B-cell lymphoma (DLBCL) and invasive ductal carcinoma (IDC). Our study enrolled 386 breast nodules from 279 patients with…

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