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Covert Information Mapped Generalized Spatial and Direction Modulation toward Secure Wireless Transmission.

Yuan Zhong1,2, Zhengyu Ji1, Xianglu Li1

  • 1Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621999, China.

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Summary
This summary is machine-generated.

This study introduces a new wireless security system combining spatial and direction modulation (SDM) with generalized spatial modulation (GSM) and covert information mapping (CIM). The proposed system enhances legitimate user performance and security against eavesdroppers.

Keywords:
covert information mapping (CIM)eavesdroppinggeneralized spatial modulation (GSM)receiver subset selection (RRS)spatial and directional modulation (SDM)

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Area of Science:

  • Wireless communication security
  • Signal processing
  • Information theory

Background:

  • Wireless transmission security is a growing concern.
  • Existing modulation techniques face limitations in preventing eavesdropping.
  • Need for advanced systems combining multiple modulation strategies.

Purpose of the Study:

  • To propose a novel system, CIM-GSDM, for enhanced wireless transmission security.
  • To combine spatial and direction modulation (SDM) with generalized spatial modulation (GSM) and covert information mapping (CIM).
  • To improve legitimate user performance and hinder eavesdroppers.

Main Methods:

  • Integration of spatial and direction modulation (SDM) with generalized spatial modulation (GSM).
  • Utilizing covert information mapping (CIM) to modulate information into receiver indices.
  • Employing an interference matrix for enhanced security.
  • Conventional amplitude-phase modulation for a portion of the message.

Main Results:

  • The proposed CIM-GSDM system significantly hinders eavesdroppers.
  • Legitimate users achieve superior bit error rate (BER) performance compared to eavesdroppers.
  • Improved security over original CIM-SDM at the same spectral efficiency.

Conclusions:

  • The CIM-GSDM system offers a robust solution for secure wireless communication.
  • The combination of GSM and CIM effectively enhances information security.
  • The system demonstrates practical applicability and superior performance in simulations.