Physical Layer Security Using Two-Path Successive Relaying
AbstractRelaying is one of the useful techniques to enhance wireless physical-layer security. Existing literature shows that employing full-duplex relay instead of conventional half-duplex relay improves secrecy capacity and secrecy outage probability, but this is at the price of sophisticated implementation. As an alternative, two-path successive relaying has been proposed to emulate operation of full-duplex relay by scheduling a pair of half-duplex relays to assist the source transmission alternately. However, the performance of two-path successive relaying in secrecy communication remains unexplored. This paper proposes a secrecy two-path successive relaying protocol for a scenario with one source, one destination and two half-duplex relays. The relays operate alternately in a time division mode to forward messages continuously from source to destination in the presence of an eavesdropper. Analytical results reveal that the use of two half-duplex relays in the proposed scheme contributes towards a quadratically lower probability of interception compared to full-duplex relaying. Numerical simulations show that the proposed protocol achieves the ergodic achievable secrecy rate of full-duplex relaying while delivering the lowest probability of interception and secrecy outage probability compared to the existing half duplex relaying, full duplex relaying and full duplex jamming schemes. View Full-Text
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Liau, Q.Y.; Leow, C.Y.; Ding, Z. Physical Layer Security Using Two-Path Successive Relaying. Sensors 2016, 16, 846.
Liau QY, Leow CY, Ding Z. Physical Layer Security Using Two-Path Successive Relaying. Sensors. 2016; 16(6):846.Chicago/Turabian Style
Liau, Qian Y.; Leow, Chee Y.; Ding, Zhiguo. 2016. "Physical Layer Security Using Two-Path Successive Relaying." Sensors 16, no. 6: 846.
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