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By exploiting noise as an information-bearing resource, noise-driven communication offers a promising framework for low-complexity and secure wireless system design. In this letter, the scheme of ternary noise modulation (T-NoiseMod) is…

Signal Processing · Electrical Eng. & Systems 2026-04-17 Ata Bilgin , Erkin Yapıcı , Yusuf İslam Tek , Ertuğrul Başar

Cognitive radio (CR) and non-orthogonal multiple access (NOMA) have been deemed two promising technologies due to their potential to achieve high spectral efficiency and massive connectivity. This paper studies a multiple-input…

Signal Processing · Electrical Eng. & Systems 2018-02-28 Fuhui Zhou , Zheng Chu , Haijian Sun , Rose Qingyang Hu , Lajos Hanzo

To make a good balance between performance, cost, and power consumption, a hybrid intelligent reflecting surface (IRS)-aided directional modulation (DM) network is investigated in this paper, where the hybrid IRS consists of passive and…

Information Theory · Computer Science 2023-02-15 Rongen Dong , Hangjia He , Feng Shu , Riqing Chen , Jiangzhou Wang

In this paper, a secure spatial modulation (SM) system with artificial noise (AN)-aided is investigated. To achieve higher secrecy rate (SR) in such a system, two high-performance schemes of transmit antenna selection (TAS), leakage-based…

Information Theory · Computer Science 2018-01-16 Feng Shu , Zhengwang Wang , Riqing Chen , Yongpeng Wu , Jiangzhou Wang

Intelligent reflecting surface (IRS) is a promising solution to build a programmable wireless environment for future communication systems, in which the reflector elements steer the incident signal in fully customizable ways by passive…

Information Theory · Computer Science 2022-09-14 Feng Shu , Xinyi Jiang , Wenlong Cai , Weiping Shi , Mengxing Huang , Jiangzhou Wang , Xiaohu You

Reconfigurable intelligent surface (RIS) or intelligent reflecting surface (IRS) has been an attractive technology for future wireless communication and sensing systems. However, in the practical RIS, the mutual coupling effect among RIS…

Signal Processing · Electrical Eng. & Systems 2023-09-26 Zhimin Chen , Peng Chen , Le Zheng , Yudong Zhang

Reconfigurable intelligent surface (RIS) enhances signal quality by adjusting the phase of electromagnetic waves in wireless communication. Spatial modulation (SM), a prominent index modulation (IM) technique, provides high spectral…

Signal Processing · Electrical Eng. & Systems 2023-11-23 Burak Ahmet Ozden , Erdogan Aydin

In this paper, we propose a novel active reconfigurable intelligent surface (RIS)-assisted amplitude-domain reflection modulation (ADRM) transmission scheme, termed as ARIS-ADRM. This innovative approach leverages the additional degree of…

Signal Processing · Electrical Eng. & Systems 2025-03-28 Jing Zhu , Qu , Luo , Zheng Chu , Gaojie Chen , Pei Xiao , Lixia Xiao , Chaoyun Song

The direction of arrival (DOA) estimation problem is addressed in this letter. A reconfigurable intelligent surface (RIS) aided system for the DOA estimation is proposed. Unlike traditional DOA estimation systems, a low-cost system with…

Signal Processing · Electrical Eng. & Systems 2022-03-22 Peng Chen , Zihan Yang , Zhimin Chen , Ziyu Guo

This paper introduces a signal strength-based direction of arrival (DOA) estimation approach for directional sensors that explicitly accounts for missed detections. In traditional phase-based DOA estimation frameworks, negative information…

Signal Processing · Electrical Eng. & Systems 2026-05-25 Gustav Zetterqvist , Fredrik Gustafsson , Gustaf Hendeby

Automatic modulation classification is of crucial importance in wireless communication networks. Deep learning based automatic modulation classification schemes have attracted extensive attention due to the superior accuracy. However, the…

Signal Processing · Electrical Eng. & Systems 2022-07-01 Rui Ding , Hao Zhang , Fuhui Zhou , Qihui Wu , Zhu Han

Deep neural networks have become widely used, obtaining remarkable results in domains such as computer vision, speech recognition, natural language processing, audio recognition, social network filtering, machine translation, and…

Neural and Evolutionary Computing · Computer Science 2020-02-03 Divya Gopinath , Guy Katz , Corina S. Pasareanu , Clark Barrett

Accurate Direction of Arrival (DoA) estimation is critical for applications in robotics and communication, but high costs and complexity of coherent multi-channel receivers hinder accessibility. This work proposes a cost-effective DoA…

Signal Processing · Electrical Eng. & Systems 2025-02-13 Lennart Werner , Markus Gardill , Marco Hutter

As a kind of wavefront with helical phase, orbital angular momentum (OAM) shows the great potential to enhance the security results of wireless communications due to its unique orthogonality and central hollow electromagnetic wave…

Signal Processing · Electrical Eng. & Systems 2024-07-17 Minmin Wang , Liping Liang , Wenchi Cheng , Wei Zhang , Ruirui Chen , Hailin Zhang

In this work, we consider direction-of-arrival (DoA) estimation in the presence of extreme noise using Deep Learning (DL). In particular, we introduce a Convolutional Neural Network (CNN) that is trained from mutli-channel data of the true…

Signal Processing · Electrical Eng. & Systems 2021-09-08 Georgios K. Papageorgiou , Mathini Sellathurai , Yonina C. Eldar

Intelligent reflecting surface (IRS) is an emerging technology for wireless communication composed of a large number of low-cost passive devices with reconfigurable parameters, which can reflect signals with a certain phase shift and is…

Information Theory · Computer Science 2023-02-16 Feng Shu , Lili Yang , Yan Wang , Xuehui Wang , Weiping Shi , Chong Shen , Jiangzhou Wang

High-accuracy positioning has become a fundamental enabler for intelligent connected devices. Nevertheless, the present wireless networks still rely on model-driven approaches to achieve positioning functionality, which are susceptible to…

Signal Processing · Electrical Eng. & Systems 2025-01-03 Shengheng Liu , Xingkang Li , Zihuan Mao , Peng Liu , Yongming Huang

This paper considers a challenging scenario of machine type communications, where we assume internet of things (IoT) devices send short packets sporadically to an access point (AP) and the devices are not synchronized in the packet level.…

Information Theory · Computer Science 2024-06-12 Yuanyuan Zhang , Zhengdao Yuan , Qinghua Guo , Zhongyong Wang , Jiangtao Xi , Yanguang Yu , Yonghui Li

Optimal power allocation (PA) strategies can make a significant rate improvement in secure spatial modulation (SM). Due to the lack of secrecy rate (SR) closed-form expression in secure SM networks, it is hard to optimize the PA factor. In…

Signal Processing · Electrical Eng. & Systems 2018-10-10 Feng Shu , Xiaoyu Liu , Guiyang Xia , Tingzhen Xu , Jun Li , Jiangzhou Wang

Reconfigurable distributed antenna and reflecting surface (RDARS) is a promising architecture for future sixth-generation (6G) wireless networks. In particular, the dynamic working mode configuration for the RDARS-aided system brings an…

Signal Processing · Electrical Eng. & Systems 2025-10-17 Chengwang Ji , Kehui Li , Haiquan Lu , Qiaoyan Peng , Jintao Wang , Feifei Gao , Shaodan Ma