TY - GEN
T1 - Secrecy Performance of Hybrid Satellite-Terrestrial Relay Systems with Hardware Impairments
AU - Wu, Hang
AU - Zou, Yulong
AU - Zhu, Jia
AU - Xue, Xiaochan
AU - Tsiftsis, Theodoros
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (Grant Nos. 61522109, 61631020, 61671253 and 91738201), the Natural Science Foundation of Jiangsu Province (Grant Nos. BK20140887 and BK20150040), and the Key Project of Natural Science Research of Higher Education Institutions of Jiangsu Province (No. 15KJA510003).
Publisher Copyright:
© 2019 IEEE.
PY - 2019/5
Y1 - 2019/5
N2 - The hardware impairments of transceiver nodes generate signal distortions and degrade the secrecy performance of wireless communications systems. In this paper, we investigate the effect of hardware impairments on the secrecy outage probability of hybrid satellite-terrestrial relay systems (HSTRS). The source satellite transmits its signal to the terrestrial destination with the help of decode-and-forward (DF) terrestrial relays, while the eavesdropper attempts to tap the transmission from the terrestrial relays to destination. An optimal relay selection (ORS) scheme is proposed for enhancing the physical-layer security of HSTRS against hardware impairments. The traditional round-robin scheduling (RRS) is also considered for comparison purposes. We derive closed-form expressions of the secrecy outage probability for both the RRS and ORS schemes. Numerical results show that given certain hardware impairments, the secrecy outage performance of ORS scheme is better than that of the RRS. Additionally, as the number of terrestrial relays increases, the secrecy outage probability of proposed ORS scheme decreases significantly, demonstrating the advantage of exploiting relay selection against hardware impairments for HSTRS.
AB - The hardware impairments of transceiver nodes generate signal distortions and degrade the secrecy performance of wireless communications systems. In this paper, we investigate the effect of hardware impairments on the secrecy outage probability of hybrid satellite-terrestrial relay systems (HSTRS). The source satellite transmits its signal to the terrestrial destination with the help of decode-and-forward (DF) terrestrial relays, while the eavesdropper attempts to tap the transmission from the terrestrial relays to destination. An optimal relay selection (ORS) scheme is proposed for enhancing the physical-layer security of HSTRS against hardware impairments. The traditional round-robin scheduling (RRS) is also considered for comparison purposes. We derive closed-form expressions of the secrecy outage probability for both the RRS and ORS schemes. Numerical results show that given certain hardware impairments, the secrecy outage performance of ORS scheme is better than that of the RRS. Additionally, as the number of terrestrial relays increases, the secrecy outage probability of proposed ORS scheme decreases significantly, demonstrating the advantage of exploiting relay selection against hardware impairments for HSTRS.
UR - http://www.scopus.com/inward/record.url?scp=85070193461&partnerID=8YFLogxK
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U2 - 10.1109/ICC.2019.8761231
DO - 10.1109/ICC.2019.8761231
M3 - Conference contribution
AN - SCOPUS:85070193461
T3 - IEEE International Conference on Communications
BT - 2019 IEEE International Conference on Communications, ICC 2019 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE International Conference on Communications, ICC 2019
Y2 - 20 May 2019 through 24 May 2019
ER -