TY - GEN
T1 - Privacy Protection via Beamforming Optimization in MISO NOMA Networks
AU - Cao, Yang
AU - Zhao, Nan
AU - Chen, Yunfei
AU - Jin, Minglu
AU - Fan, Lisheng
AU - Ding, Zhiguo
AU - Yu, F. Richard
N1 - Funding Information:
This research was supported by the open research fund of State Key Laboratory of Integrated Services Networks under Grant ISN19-02, the National Natural Science Foundation of China (NSFC) under Grant 61871065 and 61871139, the Fundamental Research Funds for the Central Universities under DUT17JC43, and the Xinghai Scholars Program. Nan Zhao is the corresponding author ([email protected]).
Publisher Copyright:
© 2018 IEEE.
PY - 2018/11/30
Y1 - 2018/11/30
N2 - Non-orthogonal multiple access (NOMA) is a promising approach for 5G. However, the privacy between users may be compromised due to the superposition of all users' signals to successive interference cancellation (SIC) receivers. In this paper, we propose a scheme based on beamforming optimization for the downlink NOMA that can enhance the security of a specific private user while guaranteeing other users' quality of service (QoS). Specifically, we intend to maximize the secrecy rate of the private user, under the constraint that the other users' QoS is satisfied. Owing to the non-convexity, we first convert it into convex forms and then, an iterative algorithm based on the concave-convex procedure is proposed to attain their solutions. Extensive simulation results are presented to evaluate the effectiveness of the proposed scheme.
AB - Non-orthogonal multiple access (NOMA) is a promising approach for 5G. However, the privacy between users may be compromised due to the superposition of all users' signals to successive interference cancellation (SIC) receivers. In this paper, we propose a scheme based on beamforming optimization for the downlink NOMA that can enhance the security of a specific private user while guaranteeing other users' quality of service (QoS). Specifically, we intend to maximize the secrecy rate of the private user, under the constraint that the other users' QoS is satisfied. Owing to the non-convexity, we first convert it into convex forms and then, an iterative algorithm based on the concave-convex procedure is proposed to attain their solutions. Extensive simulation results are presented to evaluate the effectiveness of the proposed scheme.
KW - beamforming optimization
KW - Non-orthogonal multiple access
KW - physical layer security
KW - privacy protection
UR - http://www.scopus.com/inward/record.url?scp=85059934648&partnerID=8YFLogxK
U2 - 10.1109/WCSP.2018.8555678
DO - 10.1109/WCSP.2018.8555678
M3 - Conference contribution
AN - SCOPUS:85059934648
T3 - 2018 10th International Conference on Wireless Communications and Signal Processing, WCSP 2018
BT - 2018 10th International Conference on Wireless Communications and Signal Processing, WCSP 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th International Conference on Wireless Communications and Signal Processing, WCSP 2018
Y2 - 18 October 2018 through 20 October 2018
ER -