Results 41 to 50 of about 25,963 (242)

Exploiting Reconfigurable Intelligent Surface-Based Uplink/Downlink Wireless Systems

IEEE Access, 2022
This paper analyzes the performance of an uplink/downlink reconfigurable intelligent surface (RIS)-based wireless system with a multiple-antenna base station (B), where the RIS selection strategy is considered to alleviate the overhead and resources ...
Khac-Tuan Nguyen, Thai-Hoc Vu, Sunghwan Kim   +2 more
doaj   +1 more source

Nonterrestrial Communications Assisted by Reconfigurable Intelligent Surfaces

Proceedings of the IEEE, 2022
arXiv admin note: text overlap with arXiv:2012.04775, arXiv:2010.02749 by other ...
Jia Ye, Jingping Qiao, Abla Kammoun, Mohamed-Slim Alouini   +3 more
openaire   +3 more sources

Capacity Improvement in Reconfigurable Intelligent Surface Assisted MIMO Communications

IEEE Access, 2021
Reconfigurable intelligent surface (RIS) is thought to be a potential key technique for future wireless communications due to its ability for manipulating the electromagnetic environment smartly.
Jun Yang, Yijian Chen, Mengnan Jian, Jianwu Dou, Min Fang   +4 more
doaj   +1 more source

Simulation of ultrasonic lamb wave generation, propagation and detection for an air coupled robotic scanner [PDF]

, 2011
A computer simulator, to facilitate the design and assessment of a reconfigurable, air-coupled ultrasonic scanner is described and evaluated. The specific scanning system comprises a team of remote sensing agents, in the form of miniature robotic ...
Burnham, Kenneth, Dobie, Gordon, Galbraith, Walter, Hayward, Gordon, Pierce, S. Gareth, Spencer, Andrew, Worden, Keith   +6 more
core   +1 more source

Reconfigurable Intelligent Surface-Assisted Radar Deception Electronic Counter-Countermeasures

Remote Sensing, 2023
A reconfigurable intelligent surface (RIS) is a promising technology for wireless communication and radar detection, owing to its superior ability to realize smart radio environments. Inspired by previous studies on RISs, this study deals with the use of
Shanshan Zhao, Biao Xie, Ziwei Liu, Jirui An   +3 more
doaj   +1 more source

Bio-inspired Tensegrity Soft Modular Robots [PDF]

, 2017
In this paper, we introduce a design principle to develop novel soft modular robots based on tensegrity structures and inspired by the cytoskeleton of living cells.
A Burks, A Vergara, B Alberts, B Jenett, BM Yim, DE Ingber, J Germann, JY Lee, M Gad-el-Hak, M Singh, MC Oliveira de, P Moubarak, SA Morin   +12 more
core   +2 more sources

Origami Microwave Imaging Array: Metasurface Tiles on a Shape‐Morphing Surface for Reconfigurable Computational Imaging

Advanced Science, 2022
Origami is the art of paper folding that allows a single flat piece of paper to assume different 3D shapes depending on the fold patterns and the sequence of folding.
Suresh Venkatesh, Daniel Sturm, Xuyang Lu, Robert J. Lang, Kaushik Sengupta   +4 more
doaj   +1 more source

Reconfigurable Intelligent Surfaces for Energy Efficiency in Wireless Communication

, 2019
The adoption of a Reconfigurable Intelligent Surface (RIS) for downlink multi-user communication from a multi-antenna base station is investigated in this paper.
Alexandropoulos, George C., Debbah, Mérouane, Huang, Chongwen, Yuen, Chau, Zappone, Alessio   +4 more
core   +1 more source

Virtual manufacturing: prediction of work piece geometric quality by considering machine and set-up [PDF]

, 2011
Lien vers la version éditeur: http://www.tandfonline.com/doi/full/10.1080/0951192X.2011.569952#.U4yZIHeqP3UIn the context of concurrent engineering, the design of the parts, the production planning and the manufacturing facility must be considered ...
D'ACUNTO, Alain, DANTAN, Jean-Yves, MARTIN, Patrick   +2 more
core   +7 more sources

Reconfigurable Intelligent Surface-Enabled Downlink NOMA

IEEE Transactions on Wireless Communications
Comment: 11 pages, 13 figures, transaction ...
Ali Tugberk Dogukan, Emre Arslan, Ertugrul Basar   +2 more
openaire   +3 more sources