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The deep learning trend has recently impacted a variety of fields, including communication systems, where various approaches have explored the application of neural networks in place of traditional designs. Neural networks flexibly allow…

Signal Processing · Electrical Eng. & Systems 2019-03-12 Ye Wang , Toshiaki Koike-Akino

The growing number of devices using the wireless spectrum makes it important to find ways to minimize interference and optimize the use of the spectrum. Deep learning models, such as convolutional neural networks (CNNs), have been widely…

Signal Processing · Electrical Eng. & Systems 2023-09-14 Taiwo Oyedare , Vijay K. Shah , Daniel J. Jakubisin , Jeffrey H. Reed

Radio spectrum monitoring in contested environments motivates the need for reliable automatic signal classification technology. Prior work highlights deep learning as a promising approach, but existing models depend on brute-force Doppler…

Signal Processing · Electrical Eng. & Systems 2025-11-19 Avi Bagchi , Dwight Hutchenson

This letter introduces a deep learning (DL) framework for direction-of-arrival (DOA) estimation. Previous works in DL context mostly consider a single or two target scenario which is a strong limitation in practice. Hence, in this work, we…

Signal Processing · Electrical Eng. & Systems 2020-04-28 Ahmet M. Elbir

As the development of neural networks, more and more deep neural networks are adopted in various tasks, such as image classification. However, as the huge computational overhead, these networks could not be applied on mobile devices or…

Computer Vision and Pattern Recognition · Computer Science 2019-12-03 Yunteng Luan , Hanyu Zhao , Zhi Yang , Yafei Dai

In this paper, we study an application of deep learning to uplink multiuser detection (MUD) for non-orthogonal multiple access (NOMA) scheme based on Welch bound equality spread multiple access (WSMA). Several non-cooperating users, each…

Information Theory · Computer Science 2020-11-25 Krishna Chitti , Joao Vieira , Behrooz Makki

Non-Orthogonal Multiple Access (NOMA) schemes are being actively explored to address some of the major challenges in 5th Generation (5G) Wireless communications. Channel estimation is exceptionally challenging in scenarios where NOMA…

Signal Processing · Electrical Eng. & Systems 2021-08-03 Anu T S , Tara Raveendran

We propose a blind ML-based modulation detection for OFDM-based technologies. Unlike previous works that assume an ideal environment with precise knowledge of subcarrier count and cyclic prefix location, we consider blind modulation…

Machine Learning · Computer Science 2024-08-16 Ali Pourranjbar , Georges Kaddoum , Verdier Assoume Mba , Sahil Garg , Satinder Singh

In this paper we are interested to learn from a wireless digitally modulated signal the number of antennas that the transmitter (Tx) of this signal uses, as well as its specific modulation scheme (from phase-shift keying (PSK) or quadrature…

Signal Processing · Electrical Eng. & Systems 2020-11-23 Apostolos Pappas , Antonios Argyriou

Recent learning-based image classification and speech recognition approaches make extensive use of attention mechanisms to achieve state-of-the-art recognition power, which demonstrates the effectiveness of attention mechanisms. Motivated…

Signal Processing · Electrical Eng. & Systems 2022-01-12 Shangao Lin , Yuan Zeng , Yi Gong

We consider whether deep convolutional networks (CNNs) can represent decision functions with similar accuracy as recurrent networks such as LSTMs. First, we show that a deep CNN with an architecture inspired by the models recently…

This paper presents a deep learning approach to the classification of 160 shortwave radio signals. It addresses the typical challenges of the shortwave spectrum, which are the large number of different signal types, the presence of various…

Signal Processing · Electrical Eng. & Systems 2025-04-09 Stefan Scholl

In cognitive radio systems, the ability to accurately detect primary user's signal is essential to secondary user in order to utilize idle licensed spectrum. Conventional energy detector is a good choice for blind signal detection, while it…

Information Theory · Computer Science 2019-09-09 Jiabao Gao , Xuemei Yi , Caijun Zhong , Xiaoming Chen , Zhaoyang Zhang

In this article, deep learning is applied to estimate the uplink channels for mixed analog-to-digital converters (ADCs) massive multiple-input multiple-output (MIMO) systems, where a portion of antennas are equipped with high-resolution…

Information Theory · Computer Science 2019-08-20 Shen Gao , Peihao Dong , Zhiwen Pan , Geoffrey Ye Li

Machine learning has become a powerful tool for solving problems in various engineering and science areas, including the area of communication systems. This paper presents the use of capsule networks for classification of digitally…

Signal Processing · Electrical Eng. & Systems 2023-07-07 James A. Latshaw , Dimitrie C. Popescu , John A. Snoap , Chad M. Spooner

Motivation: Tumor classification using Imaging Mass Spectrometry (IMS) data has a high potential for future applications in pathology. Due to the complexity and size of the data, automated feature extraction and classification steps are…

Machine Learning · Statistics 2018-06-28 Jens Behrmann , Christian Etmann , Tobias Boskamp , Rita Casadonte , Jörg Kriegsmann , Peter Maass

Signal processing, communications, and control have traditionally relied on classical statistical modeling techniques. Such model-based methods utilize mathematical formulations that represent the underlying physics, prior information and…

Signal Processing · Electrical Eng. & Systems 2022-09-13 Nir Shlezinger , Jay Whang , Yonina C. Eldar , Alexandros G. Dimakis

Blindly decoding a signal requires estimating its unknown transmit parameters, compensating for the wireless channel impairments, and identifying the modulation type. While deep learning can solve complex problems, digital signal processing…

Signal Processing · Electrical Eng. & Systems 2021-10-26 Samer Hanna , Chris Dick , Danijela Cabric

Modulation recognition using deep neural networks has shown promising advantages over conventional algorithms. However, most existing research focuses on single receive antenna. In this paper, two end-to-end feature learning deep…

Signal Processing · Electrical Eng. & Systems 2020-11-10 Lei Li , Qihang Peng , Jun Wang

Automatic Modulation Classification (AMC) is a critical component in cognitive radio systems and spectrum management applications. This study presents a comprehensive comparative analysis of three attention mechanisms (i.e., baseline…

Signal Processing · Electrical Eng. & Systems 2025-08-15 Ferhat Ozgur Catak , Murat Kuzlu , Umit Cali