NOMA-Based Cognitive Satellite Terrestrial Relay Network: Secrecy Performance Under Channel Estimation Errors and Hardware Impairments
NOMA-Based Cognitive Satellite Terrestrial Relay Network: Secrecy Performance Under Channel Estimation Errors and Hardware Impairments
复制标题
基于 NOMA 的认知卫星地面中继网络：信道估计误差和硬件损伤下的保密性能
DOI：
10.1109/jiot.2022.3157673
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发表时间：
2022-09-15
影响因子：
10.6
通讯作者：
An, Kang
中科院分区：
文献类型：
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作者：
Guo, Kefeng;Dong, Chao;An, Kang
非正交多址接入（NOMA）和认知综合卫星地面中继网络是下一代无线网络的重要组成部分。研究了信道估计误差和硬件损伤对认知综合卫星地面中继网络保密性能的联合影响。在多个窃听者中采用非合谋窃听方案，选择窃听能力最大的窃听者来窃听合法传输信号。此外，详细分析了保密中断概率（SOP）的基础上使用的部分地面中继选择策略。为了得到有意义的结论，进一步推导了SOP的渐近分析沿着推导了保密编码增益和保密分集阶数，为在高信噪比条件下评估CEE和硬件损伤对NOMA方案的影响提供了有效的方法.此外，仿真推导出的保密能量效率。最后，通过Monte Carlo仿真验证了SOP理论分析的正确性.
Nonorthogonal multiple access (NOMA) and cognitive integrated satellite terrestrial relay networks are the promising and key part for the next-generation wireless networks. This article researches the joint effects of channel estimation errors (CEEs) and hardware impairments on the secrecy performance of cognitive integrated satellite terrestrial relay networks. The noncolluding eavesdropping scheme is applied in the multiple eavesdroppers, where the eavesdropper with the highest eavesdropping capacity is selected to overhear the legitimate transmission signal. Moreover, the detailed analysis for the secrecy outage probability (SOP) is obtained based on the utilized partial terrestrial relay selection strategy. To obtain the insightful conclusions, the asymptotic analysis along with the secrecy coding gain and secrecy diversity order for the SOP are further derived, which gives the effective methods to valuate the impacts of CEEs and hardware impairments on the considered system with the NOMA scheme in high signal-to-noise ratio regime. Moreover, simulations are derived for the secrecy energy efficiency. Finally, Monte Carlo simulations are given to prove the correctness of the theoretical SOP analysis.