Using Artificial Noise to Maximize Capacity and Secrecy of MIMO Transmitters That Use Analog/Hybrid/Codebook Based Digital Precoders

Tech ID: 18A070

Competitive Advantages

  • Increased capacity and secrecy
  • Modifies only transmitter; standard receiver is used
  • Compatible with old standards

Summary

We have devised a creative approach where artificial noise, that reduces the mismatch between the transmitted signal and the signal that would be received at the desired receiver, is transmitted in the case of a predetermined combiner in an effort to maximize capacity and secrecy. The transmitted artificial noise minimizes the error at the desired receiver while it increases the error at eavesdroppers. The invention is inherently designed to exploit the imperfections at the receiver, this invention does not require any changes to the receiving device. It can be used at any transmitter that desires to exploit this invention, even by devices that are designed to communicate using legacy standards.

Bit Error Rate at Desired Receiver (Bob), and 16 or 32 Antenna Eavesdroppers for Conventional Transmitter, Artificial Noise (AS) and Precoded AS (PAS)

Desired Partnerships

  • License
  • Sponsored Research
  • Co-Development

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