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Secrecy metrics for physical layer security over fading channels

Secrecy metrics for physical layer security over fading channels

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Physical layer security over fading channels has drawn a considerable amount of attention in the literature. How to measure the secrecy performance is a fundamental but important issue for the study of wireless physical layer security. This chapter gives a comprehensive overview of the classical secrecy metrics as well as several new secrecy metrics for physical layer security over fading channels, which enables one to appropriately design secure communication systems with different views on how secrecy is measured.

Chapter Contents:

  • 1.1 Introduction
  • 1.2 Information-theoretic secrecy
  • 1.2.1 Wiretap channel model
  • 1.2.2 Classical information-theoretic secrecy
  • 1.2.3 Partial secrecy
  • 1.3 Classical secrecy metrics for fading channels
  • 1.3.1 Wireless system setup
  • 1.3.2 Ergodic secrecy capacity
  • 1.3.3 Secrecy outage probability
  • 1.4 New secrecy metrics for quasi-static fading channels
  • 1.4.1 Limitations of secrecy outage probability
  • 1.4.2 New secrecy metrics: a partial secrecy perspective
  • 1.5 Illustrating the use of new secrecy metrics: an example with fixed-rate wiretap codes
  • 1.5.1 System model
  • 1.5.2 Secrecy performance evaluation
  • 1.5.3 Impact on system design
  • 1.6 Conclusion
  • References

Inspec keywords: telecommunication security; fading channels; probability

Other keywords: secrecy metrics; wireless physical layer security; ergodic secrecy capacity; secrecy outage probability; secure communication systems; fading channels

Subjects: Radio links and equipment; Other topics in statistics

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