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This paper investigates a downlink multiple-input single-output intelligent reflecting surface (IRS) aided non-orthogonal multiple access (NOMA) system, where a base station (BS) serves multiple users with the aid of IRSs. Our goal is to…

Signal Processing · Electrical Eng. & Systems 2020-11-12 Xidong Mu , Yuanwei Liu , Li Guo , Jiaru Lin , Naofal Al-Dhahir

This paper proposes a hierarchical trajectory planning framework for UAVs operating under adversarial jamming conditions. Leveraging Bayesian Active Inference, the approach combines expert-generated demonstrations with probabilistic…

Robotics · Computer Science 2025-12-08 Ali Krayani , Seyedeh Fatemeh Sadati , Lucio Marcenaro , Carlo Regazzoni

In this paper, we propose a dual-unmanned aerial vehicle (UAV)-enabled secure communication and sensing (SCS) scheme for an air-to-ground integrated sensing and communication (ISAC) system, in which a dual-functional source UAV and jamming…

Information Theory · Computer Science 2025-05-20 Libiao Lou , Yuan Liu , Fotis Foukalas , Hongjiang Lei , Gaofeng Pan , Theodoros A. Tsiftsis , Hongwu Liu

Unmanned Aerial Vehicle (UAV) swarms represent a key advancement in autonomous systems, enabling coordinated missions through inter-UAV communication. However, their reliance on wireless links makes them vulnerable to jamming, which can…

Robotics · Computer Science 2025-11-25 Miguel Lourenço , António Grilo

This work employs an unmanned aerial vehicle (UAV) as a jammer to aid a covert communication from a transmitter Alice to a receiver Bob, where the UAV transmits artificial noise (AN) with random power to deliberately create interference to…

Information Theory · Computer Science 2022-02-28 Hangmei Rao , Sa Xiao , Shihao Yan , Jianquan Wang , Wanbin Tang

In wireless sensor networks (WSNs), utilizing the unmanned aerial vehicle (UAV) as a mobile data collector for the ground sensor nodes (SNs) is an energy-efficient technique to prolong the network lifetime. Specifically, since the UAV can…

Information Theory · Computer Science 2017-08-02 Cheng Zhan , Yong Zeng , Rui Zhang

Intelligent reflecting surface (IRS) has been considered as an efficient way to boost the computation capability of mobile edge computing (MEC) system, especially when the communication links is blocked or the communication signal is weak.…

Information Theory · Computer Science 2024-07-16 N. Li , W. Hao , X. Li , Z. Zhu , Z. Tang , S. Yang

In this paper, a novel intelligent reflecting surface (IRS)-assisted wireless powered communication network (WPCN) architecture is proposed for power-constrained Internet-of-Things (IoT) smart devices, where IRS is exploited to improve the…

Information Theory · Computer Science 2021-12-07 Zhendong Li , Wen Chen , Qingqing Wu , Huanqing Cao , Kunlun Wang , Jun Li

This paper tackles the problem of joint active and passive beamforming optimization for an intelligent reflective surface (IRS)-assisted multi-user downlink multiple-input multiple-output (MIMO) communication system. We aim to maximize…

Information Theory · Computer Science 2021-06-17 Haseeb Ur Rehman , Faouzi Bellili , Amine Mezghani , and Ekram Hossain

Cellular systems are vulnerable to jamming attacks, especially smart jammers that choose their jamming policies such as the jamming channel frequencies and power based on the ongoing communication policies and network states. In this…

Signal Processing · Electrical Eng. & Systems 2019-04-24 Xiaozhen Lu , Liang Xiao , Canhuang Dai , Huaiyu Dai

An intelligent reflecting surface (IRS) consists of passive reflective elements capable of altering impinging waveforms. The IRS-aided radar systems have recently been shown to improve detection and estimation performance by exploiting the…

Signal Processing · Electrical Eng. & Systems 2023-03-27 Zahra Esmaeilbeig , Arian Eamaz , Kumar Vijay Mishra , Mojtaba Soltanalian

This letter considers the reconfigurable intelligent surface (RIS)-aided unmanned aerial vehicle (UAV) communication systems in urban areas under the general Rician fading channel. A hybrid offline-online design is proposed to improve the…

Signal Processing · Electrical Eng. & Systems 2022-05-30 Kaiyuan Tian , Bin Duo , Xiaojun Yuan , Wu Luo

Combining intelligent reflecting surface (IRS) and non-orthogonal multiple access (NOMA) is an effective solution to enhance communication coverage and energy efficiency. In this paper, we focus on an IRS-assisted NOMA network and propose…

Signal Processing · Electrical Eng. & Systems 2020-09-14 Fang Fang , Yanqing Xu , Quoc-Viet Pham , Zhiguo Ding

In this paper, we investigate resource allocation algorithm design for intelligent reflecting surface (IRS)-assisted multiuser cognitive radio (CR) systems. In particular, an IRS is deployed to mitigate the interference caused by the…

Information Theory · Computer Science 2020-03-03 Dongfang Xu , Xianghao Yu , Robert Schober

Thanks to the line-of-sight (LoS) transmission and flexibility, unmanned aerial vehicles (UAVs) effectively improve the throughput of wireless networks. Nevertheless, the LoS links are prone to severe deterioration by complex propagation…

Information Theory · Computer Science 2019-12-10 Sixian Li , Bin Duo , Xiaojun Yuan , Ying-Chang Liang , Marco Di Renzo

Intelligent reflecting surface (IRS) is composed of numerous passive reflecting elements and can be mounted on unmanned aerial vehicles (UAVs) to achieve six-dimensional (6D) movement by adjusting the UAV's three-dimensional (3D) location…

Signal Processing · Electrical Eng. & Systems 2024-12-17 Changhao Liu , Weidong Mei , Peilan Wang , Yinuo Meng , Boyu Ning , Zhi Chen

In millimeter wave (mmWave) systems, the advanced lens antenna array can effectively reduce the radio frequency chains cost. However, the mmWave signal is still vulnerable to blocking obstacles and suffers from severe path loss. To address…

Signal Processing · Electrical Eng. & Systems 2020-07-03 Yazheng Wang , Hancheng Lu , Dan Zhao , Huan Sun

The fundamental intelligent reflecting surface (IRS) deployment problem is investigated for IRS-assisted networks, where one IRS is arranged to be deployed in a specific region for assisting the communication between an access point (AP)…

Signal Processing · Electrical Eng. & Systems 2021-10-07 Xidong Mu , Yuanwei Liu , Li Guo , Jiaru Lin , Robert Schober

Unmanned aerial vehicle (UAV)-assisted data collection has been emerging as a prominent application due to its flexibility, mobility, and low operational cost. However, under the dynamic and uncertainty of IoT data collection and energy…

Networking and Internet Architecture · Computer Science 2021-06-22 Nam H. Chu , Dinh Thai Hoang , Diep N. Nguyen , Nguyen Van Huynh , Eryk Dutkiewicz

Unmanned aerial vehicle (UAV)-assisted mobile edge computing (MEC) system is a prominent concept, where a UAV equipped with a MEC server is deployed to serve a number of terminal devices (TDs) of Internet of Things (IoT) in a finite period.…

Signal Processing · Electrical Eng. & Systems 2020-08-13 Tiankui Zhang , Yu Xu , Jonathan Loo , Dingcheng Yang , Lin Xiao
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