Stacked Intelligent Metasurfaces for Efficient Holographic MIMO Communications in 6G

A revolutionary technology relying on Stacked Intelligent Metasurfaces (SIM) is capable of carrying out advanced signal processing directly in the native electromagnetic (EM) wave regime. An SIM is fabricated by a sophisticated amalgam of multiple stacked metasurface layers, which may outperform its single-layer metasurface counterparts, such as reconfigurable intelligent surfaces (RIS) and metasurface lenses. We harness this new SIM for implementing holographic multiple-input multiple-output (HMIMO) communications without requiring excessive radio-frequency (RF) chains, which is a substantial benefit compared to existing implementations. First of all, we propose an HMIMO communication system based on a pair…

• NN
  National Natural Science Foundation of China

  Award: 62101492
• ZU
  Zhejiang University
• EA
  Engineering and Physical Sciences Research Council

  Awards: EP/X04047X/1, EP/W016605/1, EP/P003990/1, EP/X01228X/1
• ER
  European Research Council

  Award: 789028
• NK
  National Key Research and Development Program of China

  Award: 2021YFA1000500
• FR
  Fundamental Research Funds for the Central Universities

  Award: 2021FZZX001-21
• NS
  Natural Science Foundation of Zhejiang Province

  Award: LR22F010002