Power Optimization for Enhancing Secrecy of Cooperative User Relaying NOMA Networks

Yang Cao, Shuai Wang*, Minglu Jin, Nan Zhao, Chengwen Xing, Yunfei Chen, Zhiguo Ding

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

18 引用 (Scopus)

摘要

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.

源语言英语
文章编号9088210
页(从-至)8008-8012
页数5
期刊IEEE Transactions on Vehicular Technology
69
7
DOI
出版状态已出版 - 7月 2020

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