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Related papers: Wideband Beamforming for STAR-RIS-assisted THz Com…

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Wireless communication in the TeraHertz band (0.1--10 THz) is envisioned as one of the key enabling technologies for the future six generation (6G) wireless communication systems. However, very high propagation attenuations and molecular…

Signal Processing · Electrical Eng. & Systems 2020-09-22 Chongwen Huang , Zhaohui Yang , George C. Alexandropoulos , Kai Xiong , Li Wei , Chau Yuen , Zhaoyang Zhang

The performance of over-the-air computation (AirComp) systems degrades due to the hostile channel conditions of wireless devices (WDs), which can be significantly improved by the employment of reconfigurable intelligent surfaces (RISs).…

Signal Processing · Electrical Eng. & Systems 2023-01-06 Xiongfei Zhai , Guojun Han , Yunlong Cai , Yuanwei Liu , Lajos Hanzo

The development of sixth-generation (6G) communication technologies is confronted with the significant challenge of spectrum resource shortage. To alleviate this issue, we propose a novel simultaneously transmitting and reflecting…

Signal Processing · Electrical Eng. & Systems 2024-12-03 Haochen Li , Yuanwei Liu , Xidong Mu , Yue Chen , Zhiwen Pan , Xiaohu You

Benefiting from the growth of the bandwidth, Terahertz (THz) communication can support the new application with explosive requirements of the ultra-high-speed rates for future 6G wireless systems. In order to compensate for the path loss of…

Information Theory · Computer Science 2021-12-16 Yu Lu , Mo Hao , Richard MAcKenzie

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…

Signal Processing · Electrical Eng. & Systems 2022-03-15 Yiru Wang , Pengxin Guan , Hongkang Yu , Yuping Zhao

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)…

Information Theory · Computer Science 2024-02-05 Fatemeh Jafarian , Mehrdad Ardebilipour , Mohammadali Mohammadi , Michail Matthaiou

Simultaneously transmitting and reflecting \textcolor{black}{reconfigurable intelligent surface} (STAR-RIS) is a promising implementation of RIS-assisted systems that enables full-space coverage. However, STAR-RIS as well as conventional…

In this work, we unveil the advantages of synergizing cooperative rate splitting (CRS) with user relaying and simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR RIS). Specifically, we propose a novel STAR…

Information Theory · Computer Science 2024-04-16 Kangchun Zhao , Yijie Mao , Yuanming Shi

Reconfigurable Intelligent Surface (RIS) has become a popular technology to improve the capability of a THz multiuser Multi-input multi-output (MIMO) communication system. THz wave characteristics, on the other hand, restrict THz beam…

Signal Processing · Electrical Eng. & Systems 2022-07-01 Yicong Liu , Weijie Li , Zihuai Lin

Reconfigurable intelligent surfaces (RISs) have emerged as a spectrum- and energy-efficient technology to enhance the coverage of wireless communications within the upcoming 6G networks. Recently, novel extensions of this technology,…

Signal Processing · Electrical Eng. & Systems 2024-06-07 Mostafa Samy , Hayder Al-Hraishawi , Abuzar B. M. Adam , Konstantinos Ntontin , Symeon Chatzinotas , Björn Otteresten

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…

Information Theory · Computer Science 2024-11-15 Yuan Liu , Ruichen Zhang , Ruihong Jiang , Yongdong Zhu , Huimin Hu , Qiang Ni , Zesong Fei , Dusit Niyato

Terahertz (THz) systems have the benefit of high bandwidth and hence are capable of supporting ultra-high data rates, albeit at the cost of high pathloss. Hence they tend to harness high-gain beamforming. Therefore a novel hybrid 3D…

Signal Processing · Electrical Eng. & Systems 2022-02-07 Xufang Wang , Zihuai Lin , Feng Lin , Lajos Hanzo , Life Fellow

Different from conventional reconfigurable intelligent surfaces (RIS), a recent innovation called simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) has emerged, aimed at achieving complete 360-degree…

Information Theory · Computer Science 2023-09-27 Abdelhamid Salem , Kai-Kit Wong , Chan-Byoung Chae , Yangyang Zhang

In this letter, we study the simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) assisted unmanned aerial vehicle (UAV) communications. Our goal is to maximize the sum rate of all users by jointly…

Information Theory · Computer Science 2022-09-09 Qin Zhang , Yang Zhao , Hai Li , Shujuan Hou , Zhengyu Song

Simultaneously transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs) have been attracting significant attention in both academia and industry for their advantages of achieving 360{\deg} coverage and enhanced degrees of…

Information Theory · Computer Science 2025-06-13 Yuanwei Liu , Jiaqi Xu , Zhaolin Wang , Xidong Mu , Jianhua Zhang , Ping Zhang

Simultaneously transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs) have emerged as a promising technology for enabling full-space signal manipulation and enhancing wireless network coverage and capacity. In this…

Signal Processing · Electrical Eng. & Systems 2025-12-15 Taissir Y. Elganimi , Mahmoud Aldababsa , Ali A. Nasir , Khaled M. Rabie

This work investigates the application of Beyond Diagonal Intelligent Reflective Surface (BD-IRS) to enhance THz downlink communication systems, operating in a hybrid: reflective and transmissive mode, to simultaneously provide services to…

Signal Processing · Electrical Eng. & Systems 2024-07-10 Asad Mahmood , Thang X. Vu , Symeon Chatzinotas , Björn Ottersten

The sum-rate performance of simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) assisted full-duplex (FD) communication systems is investigated. The reflection and transmission coefficients of STAR-RIS…

Information Theory · Computer Science 2022-03-10 Pulasthi P. Perera , Vanodhya G. Warnasooriya , Dhanushka Kudathanthirige , Himal A. Suraweera

A simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) aided communication system is investigated, where an access point sends information to two users located on each side of the STAR-RIS. Different from…

Information Theory · Computer Science 2022-09-14 Yuanwei Liu , Xidong Mu , Robert Schober , H. Vincent Poor

Reconfigurable intelligent surface (RIS) has emerged as a cost-effective and promising solution to extend the wireless signal coverage and improve the performance via passive signal reflection. Different from existing works which do not…

Information Theory · Computer Science 2023-11-22 Anastasios Papazafeiropoulos , Ahmet M. Elbir , Pandelis Kourtessis , Ioannis Krikidis , Symeon Chatzinotas