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Physical Layer Security Using Two-Path Successive Relaying.
Qian Yu Liau1, Chee Yen Leow2, Zhiguo Ding3
1Wireless Communication Centre, Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia. qianyuliau@gmail.com.
Sensors (Basel, Switzerland)
|June 14, 2016
Summary
Two half-duplex relays in a novel protocol achieve full-duplex relaying secrecy rates. This method offers lower interception and outage probabilities, enhancing wireless physical-layer security.
Area of Science:
- Wireless communication security
- Information theory
- Network protocols
Background:
- Relaying enhances wireless physical-layer security.
- Full-duplex relaying improves secrecy but is complex.
- Two-path successive relaying offers an alternative to full-duplex.
Purpose of the Study:
- To explore the performance of two-path successive relaying in secrecy communication.
- To propose a secrecy two-path successive relaying protocol.
- To analyze its effectiveness against eavesdroppers.
Main Methods:
- A novel protocol using two half-duplex relays operating in time division mode.
- Analytical derivations for probability of interception and secrecy outage.
- Numerical simulations to compare performance against existing schemes.
Main Results:
- The proposed scheme achieves the ergodic achievable secrecy rate of full-duplex relaying.
- It offers a quadratically lower probability of interception compared to full-duplex relaying.
- Lowest probability of interception and secrecy outage probability demonstrated.
Conclusions:
- Two-path successive relaying provides an efficient alternative for enhanced wireless security.
- The proposed protocol effectively mitigates eavesdropping.
- This approach balances performance and implementation complexity.
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