TY - JOUR
T1 - Security Enhancement Using a Novel Two-Slot Cooperative NOMA Scheme
AU - Chen, Bingcai
AU - Chen, Yu
AU - Cao, Yang
AU - Chen, Yunfei
AU - Zhao, Nan
AU - Ding, Zhiguo
AU - Wang, Xianbin
N1 - Funding Information:
Manuscript received August 15, 2019; revised November 7, 2019 and December 25, 2019; accepted January 7, 2020. Date of publication January 17, 2020; date of current version March 12, 2020. The work of B. Chen was supported in part by the National Natural Science Foundation of China (NSFC) under Grants 61961040, 61771089, and 61871065, in part by the Open Research Fund of Key Laboratory of Wireless Power Transmission of Ministry of Education under Grant 2019KF001, and in part by the Tianshan Youth Plan, Xinjiang Uygur Autonomous Region under Grant 2018Q024. The work of Z. Ding was supported in part by the UK EPSRC under Grant EP/P009719/2 and in part by H2020-MSCA-RISE-2015 under Grant 690750. The review of this article was coordinated by Dr. L. Dai. (Corresponding author: Nan Zhao.) B. Chen is with the Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024, China, is also with the School of Information Science and Technology, Qingdao University of Science and Technology, Qingdao 266000, P. R. China, and also with the School of Computer Science and Technology, Xinjiang Normal University, Urumqi 830054 China (e-mail: [email protected]).
Publisher Copyright:
© 1967-2012 IEEE.
PY - 2020/3
Y1 - 2020/3
N2 - In this article, we propose a novel cooperative non-orthogonal multiple access (NOMA) scheme to guarantee the secure transmission of a specific user via two time slots. During the first time slot, the base station (BS) transmits the superimposed signal to the first user and the relay via NOMA. Meanwhile, the signal for the first user is also decoded at the second user from the superimposed signal due to its high transmit power. In the second time slot, the relay forwards the signal to the second user while the BS retransmits the signal for the first user as interference to disrupt the eavesdropping. Due to the fact that the second user has obtained the signal for the first user in the first slot, the interference can be eliminated at the second user. To measure the performance of the proposed cooperative NOMA scheme, the outage probability for the first user and the secrecy outage probability for the second user are analyzed. Simulation results are presented to show the effectiveness of the proposed scheme.
AB - In this article, we propose a novel cooperative non-orthogonal multiple access (NOMA) scheme to guarantee the secure transmission of a specific user via two time slots. During the first time slot, the base station (BS) transmits the superimposed signal to the first user and the relay via NOMA. Meanwhile, the signal for the first user is also decoded at the second user from the superimposed signal due to its high transmit power. In the second time slot, the relay forwards the signal to the second user while the BS retransmits the signal for the first user as interference to disrupt the eavesdropping. Due to the fact that the second user has obtained the signal for the first user in the first slot, the interference can be eliminated at the second user. To measure the performance of the proposed cooperative NOMA scheme, the outage probability for the first user and the secrecy outage probability for the second user are analyzed. Simulation results are presented to show the effectiveness of the proposed scheme.
KW - Artificial noise
KW - non-orthogonal multiple access
KW - physical layer security
KW - relay
KW - secrecy outage probability
UR - http://www.scopus.com/inward/record.url?scp=85082064462&partnerID=8YFLogxK
U2 - 10.1109/TVT.2020.2966996
DO - 10.1109/TVT.2020.2966996
M3 - Article
AN - SCOPUS:85082064462
SN - 0018-9545
VL - 69
SP - 3470
EP - 3475
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 3
M1 - 8961964
ER -