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This paper addresses the deployment of a drone equipped with a reconfigurable intelligent surface (RIS), creating a drone relay station (DRS) to enhance the connectivity of vehicle-to-vehicle (V2V) pairs on the ground. The trajectory of the…

Networking and Internet Architecture · Computer Science 2025-03-27 Salim Janji

The use of real-time software-controlled reconfigurable intelligent surface (RIS) units is proposed to increase the reliability of vehicle-to-everything (V2X) communications. The optimum placement problem of the RIS units is formulated by…

Networking and Internet Architecture · Computer Science 2020-07-21 Y. Ugur Ozcan , Ozgur Ozdemir , Gunes Karabulut Kurt

Reconfigurable intelligent surfaces (RIS) is considered as a revolutionary technique to improve the wireless system performance by reconfiguring the radio wave propagation environment artificially. Motivated by the potential of RIS in…

Signal Processing · Electrical Eng. & Systems 2020-12-03 Yun Ai , Felipe A. P. de Figueiredo , Long Kong , Michael Cheffena , Symeon Chatzinotas , Björn Ottersten

The requirements of vehicular communications grow with increasing level of automated driving and future applications of intelligent transportation systems (ITS). Beside the ever-increasing need for high capacity radio links, reliability and…

Networking and Internet Architecture · Computer Science 2021-08-31 Karsten Heimann , Benjamin Sliwa , Manuel Patchou , Christian Wietfeld

Reconfigurable intelligent surfaces (RISs) assist in paving the way for the evolution of conventional vehicular networks to autonomous driving. Having said that, the 3rd Generation Partnership Project (3GPP) faces numerous open challenges…

Signal Processing · Electrical Eng. & Systems 2022-03-08 Yuanbin Chen , Ying Wang , Jiayi Zhang , Ping Zhang , Lajos Hanzo

In recent years, unmanned aerial vehicles (UAVs) have become a key role in wireless communication networks due to their flexibility and dynamic adaptability. However, the openness of UAV-based communications leads to security and privacy…

Signal Processing · Electrical Eng. & Systems 2025-12-11 Chong Huang , Gaojie Chen , Zhuoao Xu , Jing Zhu , Taisong Pan , Rahim Tafazolli , Wei Huang

Vehicle-to-Everything (V2X) communications play a crucial role in ensuring safe and efficient modern transportation systems. However, challenges arise in scenarios with buildings, leading to signal obstruction and coverage limitations. To…

Networking and Internet Architecture · Computer Science 2023-08-17 Pyae Sone Aung , Loc X. Nguyen , Yan Kyaw Tun , Zhu Han , Choong Seon Hong

Reconfigurable intelligent surfaces (RISs) are expected to make future 6G networks more connected and resilient against node failures, due to their ability to introduce controllable phase-shifts onto impinging electromagnetic waves and…

Information Theory · Computer Science 2023-08-22 Mohammed S. Al-Abiad , Mohammad Javad-Kalbasi , Shahrokh Valaee

Reconfigurable intelligent surfaces (RIS) enable smart wireless environments by dynamically controlling signal propagation to enhance communication and localization. Unmanned aerial vehicles (UAVs) can act as flying base stations and thus,…

Systems and Control · Electrical Eng. & Systems 2025-11-11 Anupam Mondal , Priyadarshi Mukherjee , Sasthi C. Ghosh

This paper investigates a novel unmanned aerial vehicles (UAVs) secure communication system with the assistance of reconfigurable intelligent surfaces (RISs), where an UAV and a ground user communicate with each other, while an eavesdropper…

Information Theory · Computer Science 2021-04-29 Li Sixian , Duo Bin , Marco Di Renzo , Tao Meixia , Yuan Xiaojun

In this paper, we propose reconfigurable intelligent surface (RIS)-assisted unmanned aerial vehicles (UAVs) networks that can utilise both advantages of UAV's agility and RIS's reflection for enhancing the network's performance. To aim at…

Signal Processing · Electrical Eng. & Systems 2021-08-09 Khoi Khac Nguyen , Saeed Khosravirad , Daniel Benevides da Costa , Long D. Nguyen , Trung Q. Duong

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

In the realm of wireless communications in 5G, 6G and beyond, deploying unmanned aerial vehicle (UAV) has been an innovative approach to extend the coverage area due to its easy deployment. Moreover, reconfigurable intelligent surface (RIS)…

Networking and Internet Architecture · Computer Science 2022-12-09 Pyae Sone Aung , Yu Min Park , Yan Kyaw Tun , Zhu Han , Choong Seon Hong

Reconfigurable intelligent surface (RIS) technology is a promising method to enhance wireless communications services and to realize the smart radio environment. In this paper, we investigate the application of RIS in D2D communications,…

Signal Processing · Electrical Eng. & Systems 2024-11-12 Zelin Ji , Zhijin Qin , Clive G. Parini

Reconfigurable intelligent surface (RIS) is pivotal for beyond 5G networks in regards to the surge demand for reliable communication in unmanned aerial vehicle (UAV) networks. This paper presents an innovative approach to maximize…

Information Theory · Computer Science 2024-10-24 Mohammed Saif , Shahrokh Valaee

In this paper, we use a reconfigurable intelligent surface (RIS) to enhance the radar sensing and communication capabilities of a mmWave dual function radar communication system. To simultaneously localize the target and to serve the user,…

Signal Processing · Electrical Eng. & Systems 2021-05-06 R. S. Prasobh Sankar , Battu Deepak , Sundeep Prabhakar Chepuri

A reconfigurable intelligent surface (RIS) is a metamaterial that can be integrated into walls and influence the propagation of electromagnetic waves. This, typically passive radio frequency (RF) technology is emerging for indoor and…

Signal Processing · Electrical Eng. & Systems 2020-12-10 Aly Sabri Abdalla , Talha Faizur Rahman , Vuk Marojevic

Communication with unmanned aerial vehicles (UAVs) in current terrestrial networks suffers from poor signal strength due to the down-tilt of the access points (APs) that are optimized to serve ground users ends (GUEs). To solve this, one…

Signal Processing · Electrical Eng. & Systems 2022-09-23 Bayan Al-Nahhas , Anas Chaaban , Md. Jahangir Hossain

Reconfigurable intelligent surfaces (RISs) bring various benefits to the current and upcoming wireless networks, including enhanced spectrum and energy efficiency, soft handover, transmission reliability, and even localization accuracy.…

Signal Processing · Electrical Eng. & Systems 2023-10-03 Jiguang He , Aymen Fakhreddine , Arthur S. de Sena , Yu Tian , Merouane Debbah

It is anticipated that integrating unmanned aerial vehicles (UAVs) with reconfigurable intelligent surfaces (RISs), resulting in RIS-assisted UAV networks, will offer improved network connectivity against node failures for the beyond 5G…

Information Theory · Computer Science 2023-08-10 Mohammed S. Al-Abiad , Mohammad Javad-Kalbasi , Shahrokh Valaee
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