PDF
Full
Outline
With the rapid advancement of sixth−generation (6G) mobile communications and the vision of the Internet of Everything, spectrum scarcity has become a critical bottleneck limiting further improvements in wireless system capacity. The efficiency of traditional time−frequency domain resource mining is gradually approaching the Shannon limit. Vortex wave technology, which exploits orbital angular momentum (OAM) as an independent physical degree of freedom, offers a promising solution by breaking the constraints of conventional planar−wave transmission and opening new possibilities for high−capacity wireless communications. This paper reviews the key technologies of vortex−wave−based communication, with particular emphasis on recent progress in beam generation and manipulation, full−space multiplexed transmission, physical−layer security, and intelligent signal processing. First, reconfigurable intelligent surfaces (RIS), owing to their flexible electromagnetic parameter control and ease of integration, are expected to play a pivotal role in multi−mode vortex beam shaping and dynamic reconfiguration. Second, the incorporation of deep learning algorithms enables high−accuracy mode recognition and wavefront correction at the receiver, significantly improving system robustness and environmental adaptability. Furthermore, the inherent mode orthogonality and phase singularity of vortex waves provide unique advantages for overcoming capacity limits, enhancing physical−layer security, and enabling high−dimensional quantum information processing. Finally, the difficulties and challenges still faced by vortex wave communication, including beam divergence, atmospheric turbulence phase distortion, and mode crosstalk, are discussed, and future trends are prospected.
PDF
544
329
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
