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Multiple-input multiple-output (MIMO) techniques can help in scaling the achievable air-to-ground (A2G) channel capacity while communicating with drones. However, spatial multiplexing with drones suffers from rank deficient channels due to…

Signal Processing · Electrical Eng. & Systems 2021-08-05 Ender Ozturk , Chethan Kumar Anjinappa , Fatih Erden , Ismail Guvenc , Huaiyu Dai , Arupjyoti Bhuyan

In this paper, an intelligent reflecting surface (IRS) is leveraged to enhance the physical layer security of an integrated sensing and communication (ISAC) system in which the IRS is deployed to not only assist the downlink communication…

Information Theory · Computer Science 2022-07-20 Meng Hua , Qingqing Wu , Wen Chen , Octavia A. Dobre , A. Lee Swindlehurst

Intelligent reflecting surface (IRS) is a promising technology for achieving high spectrum efficiency in future wireless networks by leveraging massive low-cost reflecting elements with each reflecting the incident signal with a proper…

Information Theory · Computer Science 2018-10-29 Qingqing Wu , Rui Zhang

Recently, terahertz (THz) communication has drawn considerable attention as one of the promising technologies for the future wireless communications owning to its ultra-wide bandwidth. Nonetheless, one major obstacle that prevents the…

Information Theory · Computer Science 2020-09-15 Wanming Hao , Gangcan Sun , Ming Zeng , Zhengyu Zhu , Zheng Chu , Octavia A. Dobre , Pei Xiao

In this paper, intelligent reflecting surfaces (IRSs) are employed to enhance the physical layer security in a challenging radio environment. In particular, a multi-antenna access point (AP) has to serve multiple single-antenna legitimate…

Information Theory · Computer Science 2020-04-21 Xianghao Yu , Dongfang Xu , Ying Sun , Derrick Wing Kwan Ng , Robert Schober

In this paper, we study an intelligent reflecting surface (IRS)-assisted system where a multi-antenna base station (BS) serves a single-antenna user with the help of a multi-element IRS in the presence of interference generated by a…

Information Theory · Computer Science 2020-09-25 Yuhang Jia , Chencheng Ye , Ying Cui

In this paper, we investigate an intelligent reflecting surface (IRS)-assisted multi-user system, where the base station (BS) employs rotatable antennas (RAs) and the IRS can adjust the panel orientation.To alleviate the severe…

Information Theory · Computer Science 2026-05-25 Guoying Zhang , Qingqing Wu , Ziyuan Zheng , Qiaoyan Peng , Ailing Zheng , Yanze Zhu , Ying Gao , Wen Chen

With the rapid growth of Multi-access Edge Computing (MEC), secure and efficient computation offloading from user equipment (UEs) to edge access points (APs) is critical. However, DISCO intelligent reflective surface-based fully-passive…

Signal Processing · Electrical Eng. & Systems 2026-04-14 Minghui Min , Peng Zhang , Jiayang Xiao , Ruixin Yang , Shiyin Li , Huan Huang , Hongliang Zhang , Zhu Han

The use of Intelligent Reflective Surfaces (IRS) to assist communication and sensing has proven cost-effective in challenging scenarios. For sensing, IRS is shown to sense non-line-of-sight (NLOS) and stealth targets, albeit with…

Signal Processing · Electrical Eng. & Systems 2026-05-07 Sanjeeva Reddy S , Vinod Veera Reddy

Localizing users and mapping the environment using radio signals is a key task in emerging applications such as low-latency communications and safety-critical navigation. Recently introduced multipath-based SLAM methods can jointly localize…

Signal Processing · Electrical Eng. & Systems 2026-03-31 Xuhong Li , Benjamin J. B. Deutschmann , Erik Leitinger , Florian Meyer

This paper proposes a novel framework of resource allocation in multi-cell intelligent reflecting surface (IRS) aided non-orthogonal multiple access (NOMA) networks, where an IRS is deployed to enhance the wireless service. The problem of…

Signal Processing · Electrical Eng. & Systems 2020-11-16 Wanli Ni , Xiao Liu , Yuanwei Liu , Hui Tian , Yue Chen

In this paper, we develop a hybrid multiple access (MA) protocol for an intelligent reflecting surface (IRS) aided uplink transmission network by incorporating the IRS-aided time-division MA (I-TDMA) protocol and the IRS-aided…

Information Theory · Computer Science 2023-06-27 Piao Zeng , Guangji Chen , Qingqing Wu , Deli Qiao , Abbas Jamalipour

Intelligent reflecting surface (IRS) has emerged as a promising technology to reconfigure the radio propagation environment by dynamically controlling wireless signal's amplitude and/or phase via a large number of reflecting elements. In…

Signal Processing · Electrical Eng. & Systems 2022-05-26 Xiaodan Shao , Changsheng You , Wenyan Ma , Xiaoming Chen , Rui Zhang

Secure communications are of paramount importance in spectrum sharing networks due to the allocation and sharing characteristics of spectrum resources. To further explore the potential of intelligent reflective surfaces (IRSs) in enhancing…

Information Theory · Computer Science 2023-12-05 Lingyi Wang , Wei Wu , Fuhui Zhou , Qihui Wu , Octavia A. Dobre , Tony Q. S. Quek

Multi-static backscatter networks (BNs) are strong candidates for joint communication and localization in the ambient IoT paradigm for 6G. Enabling real-time localization in large-scale multi-static deployments with thousands of devices…

Signal Processing · Electrical Eng. & Systems 2026-02-17 Tara Esmaeilbeig , Kartik Patel , Traian E. Abrudan , John Kimionis , Eleftherios Kampianakis , Michael S. Eggleston

The employment of intelligent reflecting surfaces (IRSs) is a potential and promising solution to increase the spectral and energy efficiency of wireless communication networks. Despite their many advantages, IRS-aided communications have…

Information Theory · Computer Science 2021-03-26 Constantinos Psomas , Ioannis Krikidis

Intelligent reflecting surface (IRS) is deemed as a promising and revolutionizing technology for future wireless communication systems owing to its capability to intelligently change the propagation environment and introduce a new dimension…

Signal Processing · Electrical Eng. & Systems 2021-01-06 Wenhao Cai , Rang Liu , Yang Liu , Ming Li , Qian Liu

This paper proposes a novel semi-self sensing hybrid reconfigurable intelligent surface (SS-HRIS) in terahertz (THz) bands, where the RIS is equipped with reflecting elements divided between passive and active elements in addition to…

Signal Processing · Electrical Eng. & Systems 2025-01-22 Sara Farrag Mobarak , Tingnan Bao , Melike Erol-Kantarci

Intelligent reflecting surface (IRS) is envisioned to become a key technology for the upcoming six-generation (6G) wireless system due to its potential of reaping high performance in a power-efficient and cost-efficient way. With its…

Information Theory · Computer Science 2023-03-17 Wei Jiang , Hans Schotten

Intelligent reflecting surfaces (IRSs) have received considerable attention from the wireless communications research community recently. In particular, as low-cost passive devices, IRSs enable the control of the wireless propagation…

Information Theory · Computer Science 2019-04-30 Xianghao Yu , Dongfang Xu , Robert Schober
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