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Dense, unmanaged 802.11 deployments tempt saboteurs into launching jamming attacks by injecting malicious interference. Nowadays, jammers can be portable devices that transmit intermittently at low power in order to conserve energy. In this…

Networking and Internet Architecture · Computer Science 2009-06-18 Konstantinos Pelechrinis , Ioannis Broustis , Srikanth V. Krishnamurthy , Christos Gkantsidis

Intelligent reflecting surface (IRS) is a new and disruptive technology to achieve spectrum- and energy-efficient as well as cost-efficient wireless networks. This paper considers an IRS-assisted downlink non-orthogonal-multiple-access…

Information Theory · Computer Science 2020-01-01 Gang Yang , Xinyue Xu , Ying-Chang Liang

Reconfigurable holographic surfaces (RHS) have emerged as a transformative material technology, enabling dynamic control of electromagnetic waves to generate versatile holographic beam patterns. This paper addresses the problem of secrecy…

Signal Processing · Electrical Eng. & Systems 2025-03-04 Chandan Kumar Sheemar , Wali Ullah Khan , Marco di Renzo , Asad Mahmood , Jorge Querol , Symeon Chatzinotas

Wireless devices can be easily attacked by jammers during transmission, which is a potential security threat for wireless communications. Active reconfigurable intelligent surface (RIS) attracts considerable attention and is expected to be…

Information Theory · Computer Science 2024-06-17 Yang Cao , Wenchi Cheng , Jingqing Wang , Wei Zhang

Phased multiple-input multiple-output (Phased-MIMO) radar has received increasing attention for enjoying the advantages of waveform diversity and range-dependency from frequency diverse array MIMO (FDA-MIMO) radar without sacrificing…

Signal Processing · Electrical Eng. & Systems 2024-08-07 Yan Sun , Wen-qin Wang , Zhou He , Shunsheng Zhang

In the framework of 5G-and-beyond Industry 4.0, jamming attacks for denial of service are a rising threat which can severely compromise the system performance. Therefore, in this paper we deal with the problem of jamming detection and…

Signal Processing · Electrical Eng. & Systems 2022-02-04 Leonardo Chiarello , Paolo Baracca , Karthik Upadhya , Saeed R. Khosravirad , Silvio Mandelli , Thorsten Wild

A generalized downlink multi-antenna non-orthogonal multiple access (NOMA) transmission framework is proposed with the novel concept of cluster-free successive interference cancellation (SIC). In contrast to conventional NOMA approaches,…

Information Theory · Computer Science 2022-08-02 Xiaoxia Xu , Yuanwei Liu , Xidong Mu , Qimei Chen , Zhiguo Ding

In this paper, we consider waveform design for dualfunction radar-communication systems based on multiple-inputmultiple-out arrays. To achieve better Rician target detection performance, we use the relative entropy associated with the…

Information Theory · Computer Science 2023-04-06 Xuyang Wang , Bo Tang , Wenjun Wu , Da Li

Unmanned aerial vehicles (UAVs) have attracted significant interest from the academia and industry most recently. Motivated by the wide usage of UAVs, this paper considers UAV communication with reconfigurable antenna (RA) in the presence…

Signal Processing · Electrical Eng. & Systems 2022-06-10 Ayse Betul Buyuksar , Eylem Erdogan , Ibrahim Altunbas

For millimeter wave (mmWave) or Terahertz (THz) communications, by leveraging the high spatial resolution offered by large antenna arrays and the multi-path sparsity of mmWave/THz channels, a novel inter-symbol interference (ISI) mitigation…

Signal Processing · Electrical Eng. & Systems 2024-10-08 Jieni Zhang , Yong Zeng , Xiangbin Yu , Shi Jin , Jinhong Yuan , Ying-Chang Liang , Rui Zhang

As a cost-effective alternative, hybrid analog and digital beamforming architecture is a promising scheme for millimeter wave (mmWave) system. This paper considers two hybrid beamforming architectures, i.e. the partially-connected and…

Signal Processing · Electrical Eng. & Systems 2022-09-07 Bowen Wang , Ziyang Cheng , Zishu He

Dual-Functional Radar-Communication (DFRC) system is an essential and promising technique for beyond 5G. In this work, we propose a powerful and unified multi-antenna DFRC transmission framework, where an additional radar sequence is…

Signal Processing · Electrical Eng. & Systems 2021-12-15 Chengcheng Xu , Bruno Clerckx , Shiwa Chen , Yijie Mao , Jianyun Zhang

Dual-function radar-communication (DFRC) systems offer high spectral, hardware and power efficiency, as such are prime candidates for 6G wireless systems. DFRC systems use the same waveform for simultaneously probing the surroundings and…

Signal Processing · Electrical Eng. & Systems 2023-02-07 Zhaoyi Xu , Athina Petropulu

The dynamic competition between radar and jammer systems presents a significant challenge for modern Electronic Warfare (EW), as current active learning approaches still lack sample efficiency and fail to exploit jammer's characteristics.…

Signal Processing · Electrical Eng. & Systems 2024-07-12 Liangqi Liu , Wenqiang Pu , Yingru Li , Bo Jiu , Zhi-Quan Luo

In standard implementations of distributed secondary control for DC MicroGrids (MGs), the exchange of local measurements among neighboring control agents is enabled via off-the-shelf wireless solutions, such as IEEE 802.11. However, Denial…

Information Theory · Computer Science 2016-12-23 Pietro Danzi , Marko Angjelichinoski , Čedomir Stefanović , Petar Popovski

Frequency hopping (FH) has been widely used as a powerful technique for antijamming in wireless communications. However, as the wireless spectrum is becoming more and more crowded, it is very difficult to achieve efficient antijamming…

Signal Processing · Electrical Eng. & Systems 2024-07-19 Liping Liang , Wenchi Cheng , Wei Zhang , Hailin Zhang

Movable antennas (MAs) have demonstrated significant potential in enhancing the performance of dual-functional radar-communication (DFRC) systems. In this paper, we explore an MA-aided DFRC system that utilizes a reconfigurable intelligent…

Signal Processing · Electrical Eng. & Systems 2026-02-02 Ran Yang , Zheng Dong , Yue Xiu , Guangyi Liu , Wanting Lyu , Xiangxin Meng , Yan Li , Ning Wei

Multiple signal classification (MUSIC) has been widely applied in multiple-input multiple-output (MIMO) receivers for direction-of-arrival (DOA) estimation. To reduce the cost of radio frequency (RF) chains operating at millimeter-wave…

Information Theory · Computer Science 2021-06-22 Yinsheng Liu , Yiwei Yan , Li You , Wenji Wang , Hongtao Duan

The integration of sensing, communications, array signal processing, etc. into 6G mobile networks has ushered in an era of heightened situational awareness. However, this progress brings forth significant concerns regarding privacy and…

Information Theory · Computer Science 2024-06-18 Pu Xie , Yang Huang

In this paper, a downlink intelligent reflecting surface (IRS) enhanced millimeter-wave (mmWave) non-orthogonal multiple access (NOMA) system is considered. A joint optimization problem over active beamforming, passive beamforming and power…

Information Theory · Computer Science 2020-05-05 Jiakuo Zuo , Yuanwei Liu , Ertugrul Basar , Octavia A. Dobre