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Space-frequency-polarization-division multiplexed wireless communication system using anisotropic space-time-coding

Jun Chen Ke1,2,3, Xiangyu Chen4, Wankai Tang4

  • 1State Key Laboratory of Millimeter Waves, Southeast University, Nanjing210096, China.

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|December 1, 2022
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This study introduces a novel wireless communication system using an anisotropic space-time-coding digital metasurface. The system enhances channel capacity and space utilization through space-frequency-polarization-division multiplexing.

Keywords:
frequency-division multiplexingpolarization-division multiplexingspace-division multiplexingspace-time codingwireless communication

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Area of Science:

  • Metasurface technology
  • Wireless communication systems
  • Information theory

Background:

  • Digital coding metasurfaces offer simplified architectures and low cost for wireless communications.
  • Existing metasurface systems often use single-polarization, limiting channel capacity.
  • Multiplexing methods increase system complexity to overcome capacity limitations.

Purpose of the Study:

  • To propose a novel space-frequency-polarization-division multiplexed wireless communication system.
  • To overcome the limitations of single-polarization metasurface systems.
  • To enhance channel capacity and space utilization in wireless communication.

Main Methods:

  • Utilizing an anisotropic space-time-coding digital metasurface.
  • Designing distinct time-varying control voltage sequences for varactor diodes.
  • Implementing frequency-polarization-division multiplexed modulations.
  • Introducing time-delay gradients for space-frequency-polarization-division multiplexed modulations.

Main Results:

  • Achieved space-frequency-polarization-division multiplexed modulations.
  • Developed a new wireless communication system architecture with compact dual-polarized meta-elements.
  • Demonstrated high-performance and real-time transmission capabilities.
  • Showcased improved channel capacity and space utilization.

Conclusions:

  • The proposed system effectively integrates space, frequency, and polarization multiplexing.
  • The novel metasurface design enables enhanced wireless communication performance.
  • The system holds potential for multiple-user collaborative wireless communications.