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Integrated sensing and communication (ISAC) system has been envisioned as a promising technology to be applied in future applications requiring both communication and high-accuracy sensing. Different from most research focusing on…

Signal Processing · Electrical Eng. & Systems 2023-08-17 Jintao Wang , Chengwang Ji , Jiajia Guo , Shaodan Ma

Active reconfigurable intelligent surfaces (RISs) are a novel and promising technology that allows controlling the radio propagation environment while compensating for the product path loss along the RIS-assisted path. In this letter, we…

Signal Processing · Electrical Eng. & Systems 2022-05-16 Mohamed Rihan , Emanuele Grossi , Luca Venturino , Stefano Buzzi

This paper investigates artificial intelligence (AI) empowered schemes for reconfigurable intelligent surface (RIS) assisted networks from the perspective of fast implementation. We formulate a weighted sum-rate maximization problem for a…

Signal Processing · Electrical Eng. & Systems 2024-04-19 Conggang Hu , Yang Lu , Hongyang Du , Mi Yang , Bo Ai , Dusit Niyato

Movable antenna (MA) has shown significant potential for improving the performance of integrated sensing and communication (ISAC) systems. In this paper, we model an MA-aided ISAC system operating in a communication full-duplex mono-static…

Information Theory · Computer Science 2025-05-22 Size Peng , Yin Xu , Guanli Yi , Cixiao Zhang , Dazhi He , Wenjun Zhang

In this paper, a novel transmissive reconfigurable intelligent surface (TRIS) transceiver empowered integrated sensing and communications (ISAC) system is proposed for future multi-demand terminals. To address interference management, we…

Information Theory · Computer Science 2024-02-20 Ziwei Liu , Wen Chen , Qingqing Wu , Jinhong Yuan , Shanshan Zhang , Zhendong Li , Jun Li

In this paper, we investigate the performance of a reconfigurable intelligent surface (RIS) assisted large-scale network by characterizing the coverage probability and the average achievable rate using stochastic geometry. Considering the…

Signal Processing · Electrical Eng. & Systems 2022-08-19 Tianxiong Wang , Gaojie Chen , Mihai-Alin Badiu , Justin P. Coon

An active reconfigurable intelligent surface (RIS) has been shown to be able to enhance the sum-of-degrees-of-freedom (DoF) of a two-user multiple-input multiple-output (MIMO) interference channel (IC) with equal number of antennas at each…

Information Theory · Computer Science 2023-07-12 Shuo Zheng , Bojie Lv , Tong Zhang , Yinfei Xu , Gaojie Chen , Rui Wang , P. C. Ching

A simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) aided communication system is investigated. A robust joint beamforming design problem under the imperfect channel state information (CSI) is…

Signal Processing · Electrical Eng. & Systems 2025-01-13 Haochen Li , Xidong Mu , Yuanwei Liu , Yue Chen , Pan Zhiwen

The march towards 6G is accelerating and future wireless network architectures require enhanced performance along with significant coverage especially, to combat impairments on account of the wireless channel. Reconfigurable intelligent…

Signal Processing · Electrical Eng. & Systems 2023-08-16 Emre Arslan , Fatih Kilinc , Ertugrul Basar , Huseyin Arslan

Reconfigurable intelligent surface (RIS) as an emerging cost-effective technology can enhance the spectrum- and energy-efficiency of wireless networks. In this paper, we consider an RIS-aided green edge inference system, where the inference…

Signal Processing · Electrical Eng. & Systems 2024-10-30 Sheng Hua , Yong Zhou , Kai Yang , Yuanming Shi

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

Reconfigurable Intelligent Surfaces (RISs), comprising large numbers of low-cost and passive metamaterials with tunable reflection properties, have been recently proposed as an enabler for programmable radio propagation environments.…

Information Theory · Computer Science 2021-09-17 Aris L. Moustakas , George C. Alexandropoulos , Mérouane Debbah

Reconfigurable intelligent surface (RIS) provides a promising way to build programmable wireless transmission environments. Owing to the massive number of controllable reflecting elements on the surface, RIS is capable of providing…

Information Theory · Computer Science 2022-10-03 Xiaoyan Ma , Yuguang Fang , Haixia Zhang , Shuaishuai Guo , Dongfeng Yuan

Reconfigurable intelligent surface (RIS) has shown its great potential in facilitating device-based integrated sensing and communication (ISAC), where sensing and communication tasks are mostly conducted on different time-frequency…

Information Theory · Computer Science 2023-06-09 Xiaowei Qian , Xiaoling Hu , Chenxi Liu , Mugen Peng , Caijun Zhong

Integrated sensing and communication (ISAC) has been regarded as one of the most promising technologies for future wireless communications. However, the mutual interference in the communication radar coexistence system cannot be ignored.…

Information Theory · Computer Science 2022-01-20 Yinghui He , Yunlong Cai , Hao Mao , Guanding Yu

This paper proposes a solution for energy-efficient communication in reconfigurable intelligent surface (RIS)-assisted unmanned aerial vehicle (UAV) networks. The limited battery life of UAVs is a major concern for their sustainable…

Information Theory · Computer Science 2023-08-21 Mohammad Javad-Kalbasi , Mohammed S Al-Abiad , Shahrokh Valaee

Reconfigurable intelligent surface (RIS) is regarded as a promising technology with great potential to boost wireless networks. Affected by the "double fading" effect, however, conventional passive RIS cannot bring considerable performance…

Signal Processing · Electrical Eng. & Systems 2022-10-06 Qi Zhu , Ming Li , Rang Liu , Yang Liu , Qian Liu

In this letter, we investigate joint application of reconfigurable intelligent surface (RIS) and vertical beamforming in cognitive radio networks (CRN). After properly modeling the network, an optimization problem is formed to jointly…

Information Theory · Computer Science 2021-03-17 S. Fatemeh Zamanian , S. Mohammad Razavizadeh , Qingqing Wu

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

This paper studies a comprehensive framework for reconfigurable intelligent surface (RIS)-assisted integrated communication, sensing, and computation (ICSC) systems with a User-centric focus. The study encompasses two scenarios: the general…

Signal Processing · Electrical Eng. & Systems 2024-09-05 Jiahua Wan , Hong Ren , Zhiyuan Yu , Zhenkun Zhang , Yang Zhang , Cunhua Pan , Jiangzhou Wang
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