TY - JOUR
T1 - Power Optimization for Enhancing Secrecy of Cooperative User Relaying NOMA Networks
AU - Cao, Yang
AU - Wang, Shuai
AU - Jin, Minglu
AU - Zhao, Nan
AU - Xing, Chengwen
AU - Chen, Yunfei
AU - Ding, Zhiguo
N1 - Funding Information:
Manuscript received January 13, 2020; revised March 23, 2020; accepted May 3, 2020. Date of publication May 6, 2020; date of current version July 16, 2020. The work was supported by the National Natural Science Foundation of China (NSFC) under Grant 61871065, and the Sate Key Laboratory of Rail Traffic Control and Safety under Contract RCS2018K005, Beijing Jiaotong University. The review of this article was coordinated by Prof. D. B. da Costa. (Corresponding author: Shuai Wang.) Yang Cao, Minglu Jin, and Nan Zhao are with the Key Laboratory of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education, Dalian University of Technology, Dalian 116024, China (e-mail: [email protected]; [email protected]; [email protected]).
Publisher Copyright:
© 1967-2012 IEEE.
PY - 2020/7
Y1 - 2020/7
N2 - To enhance the secrecy of wireless transmission, we propose a cooperative user relaying NOMA scheme, in which the near user works in full-duplex mode by transmitting jamming signals and receiving desired signals in the first phase, and the base station sends jamming signals in the second phase. Two power allocation (PA) schemes between the legitimate and jamming signals are designed based on different knowledge of the eavesdropping channel state information (ECSI). The first scheme aims to jam the eavesdropping with highest power while meeting rate requirements without ECSI. In the second scheme, the closed-form expressions of secrecy outage probability (SOP) are first derived using the statistical ECSI. Then, the sum secrecy rate is maximized by optimizing the PA and redundant rate with SOP constraints. Simulation results are provided to show the effectiveness of the proposed schemes.
AB - To enhance the secrecy of wireless transmission, we propose a cooperative user relaying NOMA scheme, in which the near user works in full-duplex mode by transmitting jamming signals and receiving desired signals in the first phase, and the base station sends jamming signals in the second phase. Two power allocation (PA) schemes between the legitimate and jamming signals are designed based on different knowledge of the eavesdropping channel state information (ECSI). The first scheme aims to jam the eavesdropping with highest power while meeting rate requirements without ECSI. In the second scheme, the closed-form expressions of secrecy outage probability (SOP) are first derived using the statistical ECSI. Then, the sum secrecy rate is maximized by optimizing the PA and redundant rate with SOP constraints. Simulation results are provided to show the effectiveness of the proposed schemes.
KW - Cooperative relaying
KW - non-orthogonal multiple access
KW - power allocation
KW - secrecy outage probability
UR - https://www.scopus.com/pages/publications/85088515770
U2 - 10.1109/TVT.2020.2992765
DO - 10.1109/TVT.2020.2992765
M3 - Article
AN - SCOPUS:85088515770
SN - 0018-9545
VL - 69
SP - 8008
EP - 8012
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 7
M1 - 9088210
ER -