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Functional magnetic resonance imaging (fMRI) is a powerful tool for probing brain function, yet reliable clinical diagnosis is hampered by low signal-to-noise ratios, inter-subject variability, and the limited frequency awareness of…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Junhao Jia , Yifei Sun , Yunyou Liu , Cheng Yang , Changmiao Wang , Feiwei Qin , Yong Peng , Wenwen Min

Different from conventional passive reconfigurable intelligent surfaces (RISs), incident signals and thermal noise can be amplified at active RISs. By exploiting the amplifying capability of active RISs, noticeable performance improvement…

Information Theory · Computer Science 2025-04-02 Jinho Yang , Hyeongtaek Lee , Junil Choi

Functional Magnetic Resonance Imaging (fMRI) is an advanced neuroimaging method that enables in-depth analysis of brain activity by measuring dynamic changes in the blood oxygenation level-dependent (BOLD) signals. However, the…

Machine Learning · Computer Science 2025-09-26 Hwa Hui Tew , Junn Yong Loo , Yee-Fan Tan , Xinyu Tang , Hernando Ombao , Fuad Noman , Raphael C. -W. Phan , Chee-Ming Ting

Reconfigurable intelligent surfaces (RIS) and index modulation (IM) represent key technologies for enabling reliable wireless communication with high energy efficiency. However, to fully take advantage of these technologies in practical…

Information Theory · Computer Science 2024-11-08 Aritra Basu , Soumya P. Dash , Sonia Aissa

Data uncertainty is commonly observed in the images for face recognition (FR). However, deep learning algorithms often make predictions with high confidence even for uncertain or irrelevant inputs. Intuitively, FR algorithms can benefit…

Computer Vision and Pattern Recognition · Computer Science 2022-12-05 Lei Shang , Mouxiao Huang , Wu Shi , Yuchen Liu , Yang Liu , Fei Wang , Baigui Sun , Xuansong Xie , Yu Qiao

Radio frequency identification (RFID) has been widely has broad applications. One such application is to use RFID to track inventory in warehouses and retail stores. In this application, timely identifying the missing items is an ongoing…

Networking and Internet Architecture · Computer Science 2022-05-23 Chu Chu , Rui Xu , Gang Li , Zhenbing Li , Guangjun Wen

Autism Spectrum Disorder(ASD) is a set of neurodevelopmental conditions that affect patients' social abilities. In recent years, many studies have employed deep learning to diagnose this brain dysfunction through functional MRI (fMRI).…

Image and Video Processing · Electrical Eng. & Systems 2021-10-26 Li Pan , Jundong Liu , Mingqin Shi , Chi Wah Wong , Kei Hang Katie Chan

Accurately modeling the nonlinear dynamics of a system from measurement data is a challenging yet vital topic. The sparse identification of nonlinear dynamics (SINDy) algorithm is one approach to discover dynamical systems models from data.…

Machine Learning · Computer Science 2021-04-28 Kadierdan Kaheman , J. Nathan Kutz , Steven L. Brunton

The quality and experience of mobile communication have significantly improved with the introduction of 5G, and these improvements are expected to continue beyond the 5G era. However, vulnerabilities in control-plane protocols, such as…

Cryptography and Security · Computer Science 2025-10-09 Thusitha Dayaratne , Ngoc Duy Pham , Viet Vo , Shangqi Lai , Sharif Abuadbba , Hajime Suzuki , Xingliang Yuan , Carsten Rudolph

Orthogonal frequency division multiplexing (OFDM) is a key waveform for integrated sensing and communication (ISAC) due to its spectral efficiency and compatibility with modern wireless standards. In multi-target and clutter-rich…

Signal Processing · Electrical Eng. & Systems 2026-05-19 Dongil Yang , Kaitao Meng , Christos Masouros , Kawon Han

Modal decomposition techniques, such as Empirical Mode Decomposition (EMD), Variational Mode Decomposition (VMD), and Singular Spectrum Analysis (SSA), have advanced time-frequency signal analysis since the early 21st century. These methods…

Signal Processing · Electrical Eng. & Systems 2025-10-29 Wang Hao , Kuang Zhang , Hou Chengyu , Yang Yifan , Tan Chenxing , Fu Weifeng

Deep neural networks have achieved great success in computer vision, speech recognition and many other areas. The potential of recurrent neural networks especially the Long Short-Term Memory (LSTM) for open set communication signal…

Signal Processing · Electrical Eng. & Systems 2020-02-28 Youwei Guo , Hongyu Jiang , Jing Wu , Jie Zhou

Managing large-scale optical distribution networks is a daunting task. This paper introduces a novel solution using radio frequency identification (RFID) technology to transform the procedure we monitor and manage the complex optical…

Networking and Internet Architecture · Computer Science 2024-10-28 Xiaoying Zheng , Xingqi Xuan , Shilie Zheng , Xiaonan Hui , Xianmin Zhang

To advance towards carbon-neutrality and improve the limited {performance} of conventional passive wireless communications, in this paper, we investigate the integration of noise modulation with zero-energy reconfigurable intelligent…

Information Theory · Computer Science 2025-06-04 Ahmad Massud Tota Khel , Aissa Ikhlef , Zhiguo Ding , Hongjian Sun

Reconfigurable intelligent surface (RIS) is a promising technology for establishing spectral- and energy-efficient wireless networks. In this paper, we study RIS-enhanced orthogonal frequency division multiplexing (OFDM) communications,…

Information Theory · Computer Science 2021-10-19 Jiancheng An , Chao Xu , Derrick Wing Kwan Ng , Chau Yuen , Lu Gan , Lajos Hanzo

Research has shown that communications systems and receivers suffer from high power adjacent channel signals, called blockers, that drive the radio frequency (RF) front end into nonlinear operation. Since simple systems, such as the…

Signal Processing · Electrical Eng. & Systems 2022-01-26 Hossein Mohammadi , Walaa AlQwider , Talha Faizur Rahman , Vuk Marojevic

Timing synchronization (TS) is vital for orthogonal frequency division multiplexing (OFDM) systems, which makes the discrete Fourier transform (DFT) window start at the inter-symbol-interference (ISI)-free region. However, the multi-path…

Signal Processing · Electrical Eng. & Systems 2023-07-20 Chaojin Qing , Shuhai Tang , Na Yang , Chuangui Rao , Jiafan Wang

Next generation Radio Access Networks (RANs) introduce programmability, intelligence, and near real-time control through intelligent controllers, enabling enhanced security within the RAN and across broader 5G/6G infrastructures. This paper…

Cryptography and Security · Computer Science 2025-07-30 Sotiris Chatzimiltis , Mohammad Shojafar , Mahdi Boloursaz Mashhadi , Rahim Tafazolli

Inspired by providing reliable communications for high-mobility scenarios, in this letter, we investigate the channel estimation and signal detection in integrated sensing and communication~(ISAC) systems based on the orthogonal…

Signal Processing · Electrical Eng. & Systems 2024-06-04 Dezhi Wang , Chongwen Huang , Lei Liu , Xiaoming Chen , Wei Wang , Zhaoyang Zhang , Chau Yuen , Mérouane Debbah

Enabling object detectors to recognize out-of-distribution (OOD) objects is vital for building reliable systems. A primary obstacle stems from the fact that models frequently do not receive supervisory signals from unfamiliar data, leading…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Bin Zhang , Jinggang Chen , Xiaoyang Qu , Guokuan Li , Kai Lu , Jiguang Wan , Jing Xiao , Jianzong Wang
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