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Spectrum sensing plays a critical role in dynamic spectrum sharing, a promising technology to address the radio spectrum shortage. In particular, sensing of Orthogonal frequency division multiplexing (OFDM) signals, a widely accepted…

Signal Processing · Electrical Eng. & Systems 2019-01-03 Qingqing Cheng , Zhenguo Shi , Diep N. Nguyen , Eryk Dutkiewicz

Cognitive radio that supports a secondary and opportunistic access to licensed spectrum shows great potential to dramatically improve spectrum utilization. Spectrum sensing performed by secondary users to detect unoccupied spectrum bands,…

Information Theory · Computer Science 2009-05-29 Yan Xin , Honghai Zhang

Dynamic spectrum access (DSA) is regarded as an effective and efficient technology to share radio spectrum among different networks. As a secondary user (SU), a DSA device will face two critical problems: avoiding causing harmful…

Machine Learning · Computer Science 2018-10-30 Hao-Hsuan Chang , Hao Song , Yang Yi , Jianzhong Zhang , Haibo He , Lingjia Liu

Spectrum sharing is increasingly vital in 6G wireless communication, facilitating dynamic access to unused spectrum holes. Recently, there has been a significant shift towards employing machine learning (ML) techniques for sensing spectrum…

Cryptography and Security · Computer Science 2024-06-19 Viet Vo , Thusitha Dayaratne , Blake Haydon , Xingliang Yuan , Shangqi Lai , Sharif Abuadbba , Hajime Suzuki , Carsten Rudolph

Deep learning has been widely used in radio frequency (RF) fingerprinting. Despite its excellent performance, most existing methods only consider a closed-set assumption, which cannot effectively tackle signals emitted from those unknown…

Signal Processing · Electrical Eng. & Systems 2023-06-27 Weidong Wang , Hongshu Liao , Lu Gan

Deep learning models for non-intrusive load monitoring (NILM) tend to require a large amount of labeled data for training. However, it is difficult to generalize the trained models to unseen sites due to different load characteristics and…

Signal Processing · Electrical Eng. & Systems 2022-10-11 Shuyi Chen , Bochao Zhao , Mingjun Zhong , Wenpeng Luan , Yixin Yu

In this paper, we design a new smart softwaredefined radio access network (RAN) architecture with important properties like flexibility and traffic awareness for sixth generation (6G) wireless networks. In particular, we consider a…

Signal Processing · Electrical Eng. & Systems 2022-02-21 Ali Nouruzi , Atefeh Rezaei , Ata Khalili , Nader Mokari , Mohammad Reza Javan , Eduard A. Jorswieck , Halim Yanikomeroglu

Solar sensor-based monitoring systems have become a crucial agricultural innovation, advancing farm management and animal welfare through integrating sensor technology, Internet-of-Things, and edge and cloud computing. However, the…

Machine Learning · Computer Science 2025-05-07 Dian Chen , Zelin Wan , Dong Sam Ha , Jin-Hee Cho

Semi-supervised learning (SSL) has proven to be effective at leveraging large-scale unlabeled data to mitigate the dependency on labeled data in order to learn better models for visual recognition and classification tasks. However, recent…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Hasib Zunair , Yan Gobeil , Samuel Mercier , A. Ben Hamza

Future 6G networks envisions to blur the line between communication and sensing, leveraging ubiquitous OFDM waveforms for both high throughput data and environmental awareness. In this work, we do a thorough analysis of Communication based…

Signal Processing · Electrical Eng. & Systems 2025-07-25 Sandip Jana , Amit Kumar Mishra , Mohammed Zafar Ali Khan

The emerging 6G network envisions integrated sensing and communication (ISAC) as a promising solution to meet growing demand for native perception ability. To optimize and evaluate ISAC systems and techniques, it is crucial to have an…

Signal Processing · Electrical Eng. & Systems 2024-03-04 Zhengyu Zhang , Ruisi He , Bo Ai , Mi Yang , Yong Niu , Zhangdui Zhong , Yujian Li , Xuejian Zhang , Jing Li

The vision of 5G lies in providing high data rates, low latency (for the aim of near-real-time applications), significantly increased base station capacity, and near-perfect quality of service (QoS) for users, compared to LTE networks. In…

Networking and Internet Architecture · Computer Science 2022-09-14 Hakan Erdol , Xiaoyang Wang , Peizheng Li , Jonathan D. Thomas , Robert Piechocki , George Oikonomou , Rui Inacio , Abdelrahim Ahmad , Keith Briggs , Shipra Kapoor

Near-field sensing with extremely large-scale antenna arrays (ELAAs) in practical 6G systems is expected to operate over broad bandwidths, where delay, Doppler, and spatial effects become tightly coupled across frequency. The purpose of…

Signal Processing · Electrical Eng. & Systems 2026-01-01 Tong Wei , Kumar Vijay Mishra , Bhavani Shankar M. R. , Björn Ottersten

Spectrum sharing and dynamic spectrum reuse are becoming increasingly critical in modern wireless networks to address spectrum scarcity. However, these techniques inevitably increase Cross-Technology Interference (CTI). In this context, the…

Signal Processing · Electrical Eng. & Systems 2026-04-14 Dieter Verbruggen , Hazem Sallouha , Sofie Pollin

Supervised learning in machine learning (ML) requires labelled data set. Further real-time data classification requires an easily available methodology for labelling. Wireless modulation and signal classification find their application in…

Signal Processing · Electrical Eng. & Systems 2022-03-01 Bhargava B C , Ankush Deshmukh , A V Narasimhadhan

Differentiable ray tracing has recently challenged the status quo in radio propagation modelling and digital twinning. Promising unprecedented speed and the ability to learn from real-world data, it offers a real alternative to conventional…

Networking and Internet Architecture · Computer Science 2025-09-25 Stefanos Bakirtzis , Paul Almasan , José Suárez-Varela , Gabriel O. Ferreira , Michail Kalntis , André Felipe Zanella , Ian Wassell , Andra Lutu

This paper addresses a critical preliminary step in radar signal processing: detecting the presence of a radar signal and robustly estimating its bandwidth. Existing methods which are largely statistical feature-based approaches face…

Signal Processing · Electrical Eng. & Systems 2024-03-01 Akila Pemasiri , Zi Huang , Fraser Williams , Ethan Goan , Simon Denman , Terrence Martin , Clinton Fookes

Spectrum access is an essential problem in device-to-device (D2D) communications. However, with the recent growth in the number of mobile devices, the wireless spectrum is becoming scarce, resulting in low spectral efficiency for D2D…

Networking and Internet Architecture · Computer Science 2025-08-13 Nguyen Van Huynh , Bolun Zhang , Dinh-Hieu Tran , Dinh Thai Hoang , Diep N. Nguyen , Gan Zheng , Dusit Niyato , Quoc-Viet Pham

Networked sensing refers to the capability of properly orchestrating multiple sensing terminals to enhance specific figures of merit, e.g., positioning accuracy or imaging resolution. Regarding radio-based sensing, it is essential to…

Most semi-supervised learning (SSL) models entail complex structures and iterative training processes as well as face difficulties in interpreting their predictions to users. To address these issues, this paper proposes a new interpretable…

Neural and Evolutionary Computing · Computer Science 2023-06-26 Farhad Pourpanah , Chee Peng Lim , Ali Etemad , Q. M. Jonathan Wu