articleNature CommunicationsFeb 21, 2025GOLD OA

Integrated sensing and communication based on space-time-coding metasurfaces

XQXiao Qing ChenLZLei ZhangYZYi ZhengSLShuo LiuZRZhuo Ran Huang

State Key Laboratory of Millimeter Waves · Southeast University · +5 more institutions

PubMed
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Abstract

Programmable metasurfaces (PMs), also called reconfigurable intelligent surfaces (RISs), are planar structures capable of dynamically manipulating electromagnetic waves in real-time. Regarded as a key enabling technology for implementing smart wireless propagation environments, PMs/RISs also serve as an ideal supporting platform for integrated sensing and communication (ISAC). Here, we propose two ISAC schemes based on a special type of PMs/RISs: space-time-coding metasurfaces (STCMs). By leveraging space-time-coding strategies, STCMs simultaneously control the propagation at the fundamental (carrier) frequency for reliable wireless communication and generate spatially distributed harmonics for sensing. The…

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43
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Keywords
  • Computer science
  • Coding (social sciences)
  • Space (punctuation)
  • Mathematics
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