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Automatic modulation recognition (AMR) critically contributes to spectrum sensing, dynamic spectrum access, and intelligent communications in cognitive radio systems. The introduction of deep learning has greatly improved the accuracy of…

Signal Processing · Electrical Eng. & Systems 2024-12-12 Shuo Wang , Kuojun Yang , Zelin Ji , Qinchuan Zhang , Huiqing Pan

Reconfigurable intelligent surface (RIS)-aided rate-splitting multiple access (RSMA) systems have demonstrated remarkable potential in enhancing spectral efficiency. However, most existing works rely on ideal hardware, which is…

Information Theory · Computer Science 2026-03-20 Xuejun Cheng , Qian Zhang , Yunnuo Xu , Zheng Dong , Ju Liu , Bruno Clerckx

Rate-splitting multiple access (RSMA) is a multiple access scheme to mitigate the effects of the multi-user interference (MUI) in multi-antenna systems. In this study, we leverage the interference management capabilities of RSMA to tackle…

Information Theory · Computer Science 2023-10-04 Mehmet Mert Sahin , Onur Dizdar , Bruno Clerckx , Huseyin Arslan

Blind signal identification has important applications in both civilian and military communications. Previous investigations on blind identification of space-frequency block codes (SFBCs) only considered identifying Alamouti and spatial…

Signal Processing · Electrical Eng. & Systems 2019-08-15 Mingjun Gao , Yongzhao Li , Octavia A. Dobre , Naofal Al-Dhahir

Object detection in Remote Sensing Images (RSI) is a critical task for numerous applications in Earth Observation (EO). Differing from object detection in natural images, object detection in remote sensing images faces challenges of…

Computer Vision and Pattern Recognition · Computer Science 2024-06-19 Bissmella Bahaduri , Zuheng Ming , Fangchen Feng , Anissa Mokraou

A modulation classification (MC) scheme based on Independent Component Analysis (ICA) in conjunction with either maximum likelihood (ML) or Support Vector Machines (SVM) is proposed for MIMO-OFDM signals over frequency selective, time…

Information Theory · Computer Science 2013-07-18 Yu Liu , Alexander M. Haimovich , Wei Su , Jason Dabin , Emmanuel Kanterakis

Contemporary receiver windowed orthogonal frequency division multiplexing (RW-OFDM) algorithms have limited adjacent channel interference (ACI) rejection capability under high delay spread and small Fast Fourier Transform (FFT) sizes.…

Signal Processing · Electrical Eng. & Systems 2020-03-03 Berker Pekoz , Zekeriyya Esat Ankarali , Selcuk Kose , Huseyin Arslan

As a critical technology for next-generation communication networks, integrated sensing and communication (ISAC) aims to achieve the harmonious coexistence of communication and sensing. The degrees-of-freedom (DoF) of ISAC is limited due to…

Information Theory · Computer Science 2024-10-28 Yongqing Xu , Yong Li , Tony Q. S. Quek

Reconfigurable intelligent surface (RIS) or intelligent reflecting surface (IRS) has recently been envisioned as one of the most promising technologies in the future sixth-generation (6G) communications. In this paper, we consider the joint…

Information Theory · Computer Science 2021-12-14 Zhangjie Peng , Zhiwei Chen , Cunhua Pan , Gui Zhou , Hong Ren

Automatic modulation classification (AMC) is a basic technology in intelligent wireless communication systems. It is important for tasks such as spectrum monitoring, cognitive radio, and secure communications. In recent years, deep learning…

Signal Processing · Electrical Eng. & Systems 2025-08-04 Yunfei Liu , Mingxuan Liu , Wupeng Xie , Xinzhu Liu , Wenxue Liu , Yangang Sun , Xin Qiu , Cui Yuan , Jinhai Li

Reflecting Surfaces (RSs) are being lately envisioned as an energy efficient solution capable of enhancing the signal coverage in cases where obstacles block the direct communication from Base Stations (BSs), especially at high frequency…

Signal Processing · Electrical Eng. & Systems 2025-11-04 Kun Chen-Hu , George C. Alexandropoulos , Ana García Armada

Resting-state functional magnetic resonance imaging (rs-fMRI) can reflect spontaneous neural activities in brain and is widely used for brain disorder analysis.Previous studies propose to extract fMRI representations through diverse…

Quantitative Methods · Quantitative Biology 2023-06-27 Qianqian Wang , Wei Wang , Yuqi Fang , P. -T. Yap , Hongtu Zhu , Hong-Jun Li , Lishan Qiao , Mingxia Liu

Large scale multiple-input multiple-output (MIMO) or Massive MIMO is one of the pivotal technologies for future wireless networks. However, the performance of massive MIMO systems heavily relies on accurate channel estimation. While the…

Signal Processing · Electrical Eng. & Systems 2020-02-25 Parna Sabeti , Arman Farhang , Irene Macaluso , Nicola Marchetti , Linda Doyle

In this paper, we investigate the use of recurrent neural network (RNN)-based detection of magnetic recording channels with inter-symbol interference (ISI). We refer to the proposed detection method, which is intended for recording channels…

Information Theory · Computer Science 2020-08-03 Simeng Zheng , Yi Liu , Paul H. Siegel

Nowadays, we mainly use various convolution neural network (CNN) structures to extract features from radio data or spectrogram in AMR. Based on expert experience and spectrograms, they not only increase the difficulty of preprocessing, but…

Signal Processing · Electrical Eng. & Systems 2019-12-10 Miao Du , Qin Yu , Shaomin Fei , Chen Wang , Xiaofeng Gong , Ruisen Luo

Optimally extracting the advantages available from reconfigurable intelligent surfaces (RISs) in wireless communications systems requires estimation of the channels to and from the RIS. The process of determining these channels is…

Information Theory · Computer Science 2021-10-04 A. Lee Swindlehurst , Gui Zhou , Rang Liu , Cunhua Pan , Ming Li

Reconfigurable intelligent surface (RIS) structures reflect the incident signals by adjusting phase adaptively according to the channel condition where doing transmission in order to increase signal quality at the receiver. Besides, the…

Information Theory · Computer Science 2022-03-29 Ferhat Bayar , Onur Salan , Haci Ilhan , Erdogan Aydin

This study presents a framework designed to mitigate direct-link interference (DLI) and inter-backscatter device interference (IBDI) in multi-backscatter orthogonal frequency division multiplexing (OFDM)-based symbiotic radio (SR) systems.…

Signal Processing · Electrical Eng. & Systems 2025-04-10 Fikiri Salum Uledi , Muhammad Bilal Janjua , Çagrı Özgenç Etemoglu , Hüseyin Arslan

We propose a novel method for blind bistatic radar parameter estimation (RPE), which enables integrated sensing and communications (ISAC) by allowing passive (receive) base stations (BSs) to extract radar parameters (ranges and velocities…

Signal Processing · Electrical Eng. & Systems 2024-08-29 Kuranage Roche Rayan Ranasinghe , Kengo Ando , Hyeon Seok Rou , Giuseppe Thadeu Freitas de Abreu , Andreas Bathelt

This work proposes RIS-enabled channel signature modulation (RIS-CSM), a lightweight index modulation scheme for reconfigurable intelligent surfaces (RIS). An N-element RIS is partitioned into disjoint groups, each employing predetermined…

Information Theory · Computer Science 2025-10-17 M. A. Teeti