TY - JOUR
T1 - Security Provisioning for Non-Orthogonal Multiple Access Networks with Limited Feedback
AU - Wang, Dawei
AU - Xu, Woping
AU - Liang, Wei
AU - Ding, Zhiguo
AU - Li, Lixin
N1 - Funding Information:
Manuscript received March 23, 2020; accepted April 1, 2020. Date of publication April 8, 2020; date of current version August 7, 2020. This work was supported in part by the National Natural Science Foundation of China under Grant 61901379, in part by the Natural Science Basic Research Plan in Shaanxi Province of China under Grant 2019JQ-253 and Grant 2019JQ-075, in part by the Open Research fund of National Mobile Communications Research Laboratory, Southeast University under Grant 2020D04, and in part by the Fundamental Research Funds for the Central Universities under Grant 31020180QD095. The associate editor coordinating the review of this article and approving it for publication was M. Derakhshani. (Corresponding authors: Dawei Wang; Lixin Li.) Dawei Wang is with the School of Electronics and Information, Northwestern Polytechnical University, Xi’an 710072, China, and also with the National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China (e-mail: [email protected]).
Publisher Copyright:
© 2012 IEEE.
PY - 2020/8
Y1 - 2020/8
N2 - In this letter, we Investigate the Information security problem for non-orthogonal multiple access (NOMA) networks against an external eavesdropper. Considering the overhead of the channel state Information (CSi) feedback, we utilize the quantized CSi during the secure NOMA transmission, and derive the secrecy rate for each receiver by adopting the successive Interference cancellation. In order to optimally allocate the transmit power, an optimization problem Is formulated such that the minimum secrecy rate of the receivers Is maximized. For the proposed scheme, we also analyze the secrecy outage and transmission outage probabilities, and their closed-form expressions are derived. In addition, the security-reliability tradeoff Is analyzed. Numerical results are demonstrated to verify the analytical results.
AB - In this letter, we Investigate the Information security problem for non-orthogonal multiple access (NOMA) networks against an external eavesdropper. Considering the overhead of the channel state Information (CSi) feedback, we utilize the quantized CSi during the secure NOMA transmission, and derive the secrecy rate for each receiver by adopting the successive Interference cancellation. In order to optimally allocate the transmit power, an optimization problem Is formulated such that the minimum secrecy rate of the receivers Is maximized. For the proposed scheme, we also analyze the secrecy outage and transmission outage probabilities, and their closed-form expressions are derived. In addition, the security-reliability tradeoff Is analyzed. Numerical results are demonstrated to verify the analytical results.
KW - NOMA
KW - Power allocation
KW - security
UR - http://www.scopus.com/inward/record.url?scp=85094828502&partnerID=8YFLogxK
U2 - 10.1109/LWC.2020.2986443
DO - 10.1109/LWC.2020.2986443
M3 - Article
AN - SCOPUS:85094828502
SN - 2162-2337
VL - 9
SP - 1226
EP - 1229
JO - IEEE Wireless Communications Letters
JF - IEEE Wireless Communications Letters
IS - 8
M1 - 9060921
ER -