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In this paper, we propose a novel wireless architecture, mounted on a high-altitude aerial platform, which is enabled by reconfigurable intelligent surface (RIS). By installing RIS on the aerial platform, rich line-of-sight and full-area…

Signal Processing · Electrical Eng. & Systems 2022-02-03 Hong-Bae Jeon , Sung-Ho Park , Jaedon Park , Kaibin Huang , Chan-Byoung Chae

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…

Information Theory · Computer Science 2023-06-16 Qingchao Li , Mohammed El-Hajjar , Yanshi Sun , Ibrahim Hemadeh , Arman Shojaeifard , Yuanwei Liu , Lajos Hanzo

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

In this article, we investigate the robust beamforming design for a simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) aided downlink rate-splitting multiple access (RSMA) communication system, where both…

Signal Processing · Electrical Eng. & Systems 2025-08-08 Ziyue Wang , Xiaoyan Ma , Xingyu Peng , Zheao Li , Jinyuan Liu , Yongliang Guan , Chau Yuen

Reconfigurable Intelligent Surfaces (RIS) are passive or semi-passive heterogeneous metasurfaces and consist of many tunable elements. RIS is gaining momentum as a promising new technology to enable transforming the propagation environment…

Signal Processing · Electrical Eng. & Systems 2022-01-06 Pooja Nuti , Elyes Balti , Brian L. Evans

Reconfigurable intelligent surface (RIS) technology has recently emerged as a spectral- and cost-efficient approach for wireless communications systems. However, existing hand-engineered schemes for passive beamforming design and…

Signal Processing · Electrical Eng. & Systems 2021-05-04 Nhan Thanh Nguyen , Ly V. Nguyen , Thien Huynh-The , Duy H. N. Nguyen , A. Lee Swindlehurst , Markku Juntti

Reconfigurable intelligent surfaces (RISs) have promising coverage and data rate gains for wireless communication systems in 5G and beyond. Prior work has mainly focused on analyzing the performance of these surfaces using computer…

Holographic multiple-input multiple-output (MIMO) is deemed as a promising technique beyond massive MIMO, unleashing near-field communications, localization, and sensing in the next-generation wireless networks. Semi-continuous surface with…

Information Theory · Computer Science 2023-05-30 Charles Vanwynsberghe , Jiguang He , Chongwen Huang , Merouane Debbah

The integration of neural rendering and the SLAM system recently showed promising results in joint localization and photorealistic view reconstruction. However, existing methods, fully relying on implicit representations, are so…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Huajian Huang , Longwei Li , Hui Cheng , Sai-Kit Yeung

Reconfigurable intelligent surface (RIS) is emerging as a promising technology to boost the energy efficiency (EE) of 5G beyond and 6G networks. Inspired by this potential, in this paper, we investigate the RIS-assisted energy-efficient…

Signal Processing · Electrical Eng. & Systems 2023-01-10 Hao Zhou , Long Kong , Medhat Elsayed , Majid Bavand , Raimundas Gaigalas , Steve Furr , Melike Erol-Kantarci

Intelligent reflecting surface (IRS) is an emerging technology for wireless communication composed of a large number of low-cost passive devices with reconfigurable parameters, which can reflect signals with a certain phase shift and is…

Information Theory · Computer Science 2023-02-16 Feng Shu , Lili Yang , Yan Wang , Xuehui Wang , Weiping Shi , Chong Shen , Jiangzhou Wang

Monocular vision-based Simultaneous Localization and Mapping (SLAM) is used for various purposes due to its advantages in cost, simple setup, as well as availability in the environments where navigation with satellites is not effective.…

Robotics · Computer Science 2018-10-03 Young-Hee Lee , Chen Zhu , Gabriele Giorgi , Christoph Günther

In a typical communication system, in order to maintain a desired SNR level, initial beam alignment (BA) must be established prior to data transmission. In a setup where a Base Station (BS) Tx sends data via a digitally modulated waveform,…

Signal Processing · Electrical Eng. & Systems 2023-04-05 Florian Muhr , Lorenzo Zaniboni , Saeid K. Dehkordi , Fernando Pedraza Nieto , Giuseppe Caire

Simultaneous Localization and Mapping (SLAM) has been considered as a solved problem thanks to the progress made in the past few years. However, the great majority of LiDAR-based SLAM algorithms are designed for a specific type of payload…

Robotics · Computer Science 2018-10-31 Weikun Zhen , Sebastian Scherer

Multipath-based simultaneous localization and mapping (MP-SLAM) is a promising approach in wireless networks for obtaining position information of transmitters and receivers as well as information on the propagation environment. MP-SLAM…

Signal Processing · Electrical Eng. & Systems 2024-05-15 Erik Leitinger , Lukas Wielandner , Alexander Venus , Klaus Witrisal

Simultaneous Localization and Mapping (SLAM) technology enables the construction of environmental maps and localization, serving as a key technique for indoor autonomous navigation of mobile robots. Traditional SLAM methods typically…

Robotics · Computer Science 2024-07-17 Jiantao Feng , Xinde Li , HyunCheol Park , Juan Liu , Zhentong Zhang

Accurate and robust simultaneous localization and mapping (SLAM) is crucial for autonomous mobile systems, typically achieved by leveraging the geometric features of the environment. Incorporating semantics provides a richer scene…

Robotics · Computer Science 2025-07-22 Neng Wang , Huimin Lu , Zhiqiang Zheng , Hesheng Wang , Yun-Hui Liu , Xieyuanli Chen

Visual Simultaneous Localization and Mapping (vSLAM) is a prevailing technology for many emerging robotic applications. Achieving real-time SLAM on mobile robotic systems with limited computational resources is challenging because the…

Robotics · Computer Science 2025-02-28 Yao Zhang , Yuyi Mao , Hui Wang , Zhiwen Yu , Song Guo , Jun Zhang , Liang Wang , Bin Guo

Reconfigurable intelligent surfaces have emerged as a cutting-edge technology for next-generation wireless communications that are capable of reconfiguring the wireless environment using a large number of cost-effective reflecting elements.…

Signal Processing · Electrical Eng. & Systems 2026-03-31 Ahmed M. Benaya , Ali A. Nasir , Khaled M. Rabie , Daniel B. da Costa

Reconfigurable intelligent surface (RIS)-empowered communication has emerged as a novel concept for customizing future wireless environments in a cost- and energy-efficient way. However, due to double path loss, existing fully passive RIS…

Information Theory · Computer Science 2022-11-18 Zehra Yigit , Ertugrul Basar , Miaowen Wen , Ibrahim Altunbas
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