High-Rate Space Coding for Reconfigurable 2x2 Millimeter-Wave MIMO Systems
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High-Rate Space Coding for Reconfigurable 2x2 Millimeter-Wave MIMO Systems

  • Author(s): Vakilian, V
  • Mehrpouyan, H
  • Hua, Y
  • Jafarkhani, H
  • et al.
Creative Commons Attribution 4.0 International Public License

Millimeter-wave links are of a line-of-sight nature. Hence, multiple-input multiple-output (MIMO) systems operating in the millimeter-wave band may not achieve full spatial diversity or multiplexing. In this paper, we utilize reconfigurable antennas and the high antenna directivity in the millimeter-wave band to propose a rate-two space coding design for 2x2 MIMO systems. The proposed scheme can be decoded with a low complexity maximum-likelihood detector at the receiver and yet it can enhance the bit-error-rate performance of millimeter-wave systems compared to traditional spatial multiplexing schemes, such as the Vertical Bell Laboratories Layered Space-Time Architecture (VBLAST). Using numerical simulations, we demonstrate the efficiency of the proposed code and show its superiority compared to existing rate-two space-time block codes.

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