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The application of machine learning in wireless communications has been extensively explored, with deep unfolding emerging as a powerful model-based technique. Deep unfolding enhances interpretability by transforming complex iterative…

Signal Processing · Electrical Eng. & Systems 2026-01-15 Sukanya Deka , Kuntal Deka , Nhan Thanh Nguyen , Sanjeev Sharma , Vimal Bhatia , Nandana Rajatheva

In this paper, dynamic non-cooperative coexistence between a cognitive pulsed radar and a nearby communications system is addressed by applying nonlinear value function approximation via deep reinforcement learning (Deep RL) to develop a…

Signal Processing · Electrical Eng. & Systems 2020-08-28 Charles E. Thornton , Mark A. Kozy , R. Michael Buehrer , Anthony F. Martone , Kelly D. Sherbondy

In this paper, we optimize a faster region-based convolutional neural network (FRCNN) for 1-dimensional (1D) signal processing and electromagnetic spectrum sensing. We target a cluttered radio frequency (RF) environment, where multiple RF…

Signal Processing · Electrical Eng. & Systems 2023-02-21 Todd Morehouse , Charles Montes , Ruolin Zhou

In this paper, we propose two novel and practical deep-learning-based algorithms to solve the wireless channel type (WCT) recognition problem. Specifically, the WCT recognition problem is recast as a classification problem in deep learning…

Signal Processing · Electrical Eng. & Systems 2021-02-05 Shu Sun , Xiaofeng Li , Sungho Moon

Localizing more sources than sensors with a sparse linear array (SLA) has long relied on minimizing a distance between two covariance matrices and recent algorithms often utilize semidefinite programming (SDP). Although deep neural network…

Signal Processing · Electrical Eng. & Systems 2025-03-11 Kuan-Lin Chen , Bhaskar D. Rao

Unmanned aerial vehicles (UAVs) enable efficient in-situ radiation characterization of large-aperture antennas directly in their deployment environments. In such measurements, a continuous-wave (CW) probe tone is commonly transmitted to…

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

Automatic Modulation Classification (AMC) is a signal processing technique widely used at the physical layer of wireless systems to enhance spectrum utilization efficiency. In this work, we propose a fast and accurate AMC system, termed…

Signal Processing · Electrical Eng. & Systems 2025-04-14 Faheem Ur Rehman , Qamar Abbas , M. Karam Shehzad

With the development and widespread use of wireless devices in recent years (mobile phones, Internet of Things, Wi-Fi), the electromagnetic spectrum has become extremely crowded. In order to counter security threats posed by rogue or…

Signal Processing · Electrical Eng. & Systems 2017-11-09 K. Youssef , Louis-S. Bouchard , K. Z. Haigh , H. Krovi , J. Silovsky , C. P. Vander Valk

In this paper, we present a Generative Adversarial Network (GAN) machine learning model to interpolate irregularly distributed measurements across the spatial domain to construct a smooth radio frequency map (RFMap) and then perform…

Machine Learning · Computer Science 2021-11-25 Kuldeep S. Gill , Son Nguyen , Myo M. Thein , Alexander M. Wyglinski

The increasingly crowded radio frequency (RF) spectrum forces communication signals to coexist, creating heterogeneous interferers whose structure often departs from Gaussian models. Recovering the interference-contaminated signal of…

Signal Processing · Electrical Eng. & Systems 2026-02-05 Ariel Rodrigez , Alejandro Lancho , Amir Weiss

Deep learning models are widely used for time series classification (TSC) due to their scalability and efficiency. However, their performance degrades under challenging data conditions such as class similarity, multimodal distributions, and…

Machine Learning · Computer Science 2025-07-30 Yaoyu Zhang , Chi-Guhn Lee

Deep neural networks (DNNs) have been introduced for designing wireless policies by approximating the mappings from environmental parameters to solutions of optimization problems. Considering that labeled training samples are hard to…

Information Theory · Computer Science 2020-08-12 Chengjian Sun , Changyang She , Chenyang Yang

Deep reinforcement learning (DRL) has long been a promising solution for sequential resource management in wireless networks. However, conventional DRL methods are fundamentally limited by their reliance on unimodal policy distributions,…

Spectrum sharing among users is a fundamental problem in the management of any wireless network. In this paper, we discuss the problem of distributed spectrum collaboration without central management under general unknown channels. Since…

Signal Processing · Electrical Eng. & Systems 2021-04-07 Pranav M. Pawar , Amir Leshem

With increasing density and heterogeneity in unlicensed wireless networks, traditional MAC protocols, such as carrier-sense multiple access with collision avoidance (CSMA/CA) in Wi-Fi networks, are experiencing performance degradation. This…

Networking and Internet Architecture · Computer Science 2024-06-05 Jiantao Xin , Wei Xu , Bin Cao , Taotao Wang , Shengli Zhang

This paper aims to handle the joint transmitter and noncoherent receiver design for multiuser multiple-input multiple-output (MU-MIMO) systems through deep learning. Given the deep neural network (DNN) based noncoherent receiver, the…

Signal Processing · Electrical Eng. & Systems 2020-04-15 Songyan Xue , Yi Ma , Na Yi , Rahim Tafazolli

Radar sensors are crucial for environment perception of driver assistance systems as well as autonomous cars. Key performance factors are a fine range resolution and the possibility to directly measure velocity. With a rising number of…

Signal Processing · Electrical Eng. & Systems 2020-12-07 Johanna Rock , Mate Toth , Paul Meissner , Franz Pernkopf

Deep learning provides powerful means to learn from spectrum data and solve complex tasks in 5G and beyond such as beam selection for initial access (IA) in mmWave communications. To establish the IA between the base station (e.g., gNodeB)…

Signal Processing · Electrical Eng. & Systems 2021-03-26 Brian Kim , Yalin E. Sagduyu , Tugba Erpek , Sennur Ulukus

Radio signal classification has a very wide range of applications in cognitive radio networks and electromagnetic spectrum monitoring. In this article, we consider scenarios where multiple nodes in the network participate in cooperative…

Signal Processing · Electrical Eng. & Systems 2019-09-16 Shilian Zheng , Shichuan Chen , Xiaoniu Yang