TY - GEN
T1 - Secure transmission via a wireless-powered untrusted relay in underlay CRNs
AU - Hu, Hequn
AU - Gao, Zhenzhen
AU - Zhang, Chao
AU - Liao, Xuewen
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/7/2
Y1 - 2017/7/2
N2 - In this paper, we consider a underlay cognitive radio network (CRN), in which a secondary source (S) transmits information to a secondary destination (D) via an energy harvesting (EH) untrusted relay. Being an EH node, the relay harvests energy from the received RF signals based on power-splitting (PS) policy. Using the harvested energy, the relay not only help but also intercept the secondary transmission. To realize the positive secrecy rate, a secure scheme based on destination-aided jamming strategy is proposed. Jointly considering the secure requirement of the secondary network and the interference threshold of the primary network, the performance of the proposed secure scheme is evaluated in terms of probability of successfully secure transmission (PSST). The closed-form expression of PSST is derived. Numerical results show that, the closed form expression of PSST coincides with the simulation result perfectly. Moreover, the proposed secure scheme outperforms an intuitive secure scheme under similar power consumption.
AB - In this paper, we consider a underlay cognitive radio network (CRN), in which a secondary source (S) transmits information to a secondary destination (D) via an energy harvesting (EH) untrusted relay. Being an EH node, the relay harvests energy from the received RF signals based on power-splitting (PS) policy. Using the harvested energy, the relay not only help but also intercept the secondary transmission. To realize the positive secrecy rate, a secure scheme based on destination-aided jamming strategy is proposed. Jointly considering the secure requirement of the secondary network and the interference threshold of the primary network, the performance of the proposed secure scheme is evaluated in terms of probability of successfully secure transmission (PSST). The closed-form expression of PSST is derived. Numerical results show that, the closed form expression of PSST coincides with the simulation result perfectly. Moreover, the proposed secure scheme outperforms an intuitive secure scheme under similar power consumption.
UR - https://www.scopus.com/pages/publications/85050497895
U2 - 10.1109/GLOCOMW.2017.8269121
DO - 10.1109/GLOCOMW.2017.8269121
M3 - 会议稿件
AN - SCOPUS:85050497895
T3 - 2017 IEEE Globecom Workshops, GC Wkshps 2017 - Proceedings
SP - 1
EP - 5
BT - 2017 IEEE Globecom Workshops, GC Wkshps 2017 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 IEEE Global Telecommunications Conference, GC 2017
Y2 - 4 December 2017 through 8 December 2017
ER -