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相关论文: Channel Estimation for STAR-RIS-aided Wireless Com…

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Reconfigurable intelligent surfaces (RISs) have been proposed recently as new technology to tune the wireless propagation channels in real-time. However, most of the current works assume single-RIS (S-RIS)-aided systems, which can be…

信号处理 · 电气工程与系统科学 2021-09-21 Khaled Ardah , Sepideh Gherekhloo , André L. F. de Almeida , Martin Haardt

Integrated sensing and communication (ISAC) has become an attractive technology for future wireless networks. In this paper, we propose a simultaneous transmission and reflection reconfigurable intelligent surface (STAR-RIS) aided dynamic…

信号处理 · 电气工程与系统科学 2025-01-08 Muye Li , Shun Zhang , Yao Ge , Chau Yuen

The emergence of reconfigurable intelligent surfaces (RISs) enables us to establish programmable radio wave propagation that caters for wireless communications, via employing low-cost passive reflecting units. This work studies the…

信息论 · 计算机科学 2021-03-08 Li You , Jiayuan Xiong , Derrick Wing Kwan Ng , Chau Yuen , Wenjin Wang , Xiqi Gao

To mitigate the effects of shadow fading and obstacle blocking, reconfigurable intelligent surface (RIS) has become a promising technology to improve the signal transmission quality of wireless communications by controlling the…

信息论 · 计算机科学 2021-11-10 Wangyang Xu , Jiancheng An , Yongjun Xu , Chongwen Huang , Lu Gan , Chau Yuen

We explore the potential of a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) to enhance the performance of wireless surveillance systems. The STAR-RIS is deployed between a full-duplex (FD)…

信息论 · 计算机科学 2024-02-05 Fatemeh Jafarian , Mehrdad Ardebilipour , Mohammadali Mohammadi , Michail Matthaiou

We consider the data-aided channel estimation (CE) problem in a reconfigurable intelligent surface (RIS)-assisted wireless communication system, where the channel and information symbols are estimated jointly during the CE phase,…

信号处理 · 电气工程与系统科学 2025-06-17 Amarilton Lopes Magalhães , André Lima Férrer de Almeida , Gilderlan Tavares de Araújo

This paper delves into an integrated sensing and communication (ISAC) system bolstered by a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS). Within this system, a base station (BS) is equipped with…

信息论 · 计算机科学 2024-11-15 Yuan Liu , Ruichen Zhang , Ruihong Jiang , Yongdong Zhu , Huimin Hu , Qiang Ni , Zesong Fei , Dusit Niyato

Reconfigurable intelligent surfaces (RIS) are capable of beneficially ameliorating the propagation environment by appropriately controlling the passive reflecting elements. To extend the coverage area, the concept of simultaneous…

Reconfigurable intelligent surfaces (RISs) consist of many passive elements of metamaterials whose impedance can be controllable to change the characteristics of wireless signals impinging on them. Channel estimation is a critical task when…

信息论 · 计算机科学 2023-09-14 Özlem Tuğfe Demir , Emil Björnson

In this letter, simultaneous transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs) are studied. Compared with the conventional reflecting-only RISs, the coverage of STAR-RISs is extended to 360 degrees via simultaneous…

信号处理 · 电气工程与系统科学 2021-03-30 Jiaqi Xu , Yuanwei Liu , Xidong Mu , Octavia A. Dobre

Intelligent reflecting surface (IRS) has drawn a lot of attention recently as a promising new solution to achieve high spectral and energy efficiency for future wireless networks. By utilizing massive low-cost passive reflecting elements,…

信息论 · 计算机科学 2022-10-17 Ming-Min Zhao , Qingqing Wu , Min-Jian Zhao , Rui Zhang

Simultaneously transmitting and reflecting (STAR) reconfigurable intelligent surface (RIS), which serves users located on both sides of the surface, has recently emerged as a promising enhancement to the traditional reflective only RIS. Due…

信号处理 · 电气工程与系统科学 2023-10-16 Hancheng Zhu , Yuanwei Liu , Yik Chung Wu , Vincent K. N. Lau

This paper considers communication between a base station (BS) to two users, each from one side of a simultaneously transmitting-reflecting reconfigurable intelligent surface (STAR-RIS) in the absence of a direct link. Rate-splitting…

In this paper, we consider the downlink transmission of a multi-antenna base station (BS) supported by an active simultaneously transmitting and reconfigurable intelligent surface (STAR-RIS) to serve single-antenna users via simultaneous…

Integrated sensing and communication (ISAC) is expected to play a prominent role among emerging technologies in future wireless communications. In particular, a communication radar coexistence system is degraded significantly by mutual…

信息论 · 计算机科学 2024-04-26 Anastasios Papazafeiropoulos , Pandelis Kourtessis , Symeon Chatzinotas

This work demonstrates the effectiveness of a novel simultaneous transmission and reflection reconfigurable intelligent surface (STAR-RIS) in Full-Duplex (FD) aided communication system. The objective is to minimize the total transmit power…

信号处理 · 电气工程与系统科学 2022-03-15 Yiru Wang , Pengxin Guan , Hongkang Yu , Yuping Zhao

In this paper, we investigate real-time interference mitigation in multiuser wireless networks assisted by simultaneously transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs). Unlike conventional methods that rely on…

信号处理 · 电气工程与系统科学 2025-06-17 Abuzar B. M. Adam , Mohammed A. M. Elhassan , Elhadj Moustapha Diallo , Mohamed Amine Ouamri

Reconfigurable intelligent surface (RIS) has received widespread attention owing to the superiority of changing the wireless propagation environment intelligently. Channel feedback is essential in frequency division duplex (FDD)…

信息论 · 计算机科学 2020-12-08 Decai Shen , Linglong Dai

Traditional self-interference cancellation (SIC) methods are common in full-duplex (FD) integrated sensing and communication (ISAC) systems. However, exploring new SIC schemes is important due to the limitations of traditional approaches.…

信号处理 · 电气工程与系统科学 2024-10-25 Yu Liu , Gaojie Chen , Yun Wen , Qu Luo , Chiya Zhang , Dusit Niyato

The reconfigurable intelligent surface (RIS) technology is a promising enabler for millimeter wave (mmWave) wireless communications, as it can potentially provide spectral efficiency comparable to the conventional massive multiple-input…

信息论 · 计算机科学 2022-02-22 Xuemeng Zhou , Zhiyu Yang , Tianyi Zhang , Yi Jiang