基于鏈路間干擾輔助的中繼D2D系統(tǒng)安全通信方法
發(fā)布時間:2019-03-07 12:28
【摘要】:在包含中繼節(jié)點的D2D(Device-to-Device)系統(tǒng)中,針對蜂窩鏈路與D2D鏈路同時受竊聽的問題,提出一種基于鏈路間干擾輔助的中繼D2D系統(tǒng)安全通信方法.首先,確定蜂窩鏈路與D2D鏈路上下行發(fā)送模式;然后,在基站與中繼節(jié)點的發(fā)送信號中添加人工噪聲,協(xié)作干擾竊聽者;最后,對基站功率分配與D2D功率控制進行了優(yōu)化,以實現(xiàn)不同類型鏈路間干擾輔助保障系統(tǒng)安全.仿真結果表明,所提出的安全通信方法在保密速率方面比SVD(Singular Value Decomposition)與ZF(Zero-Forcing)預編碼方法提高了1.5bit/s/Hz.
[Abstract]:In a D2D (Device-to-Device) system with relay nodes, a secure communication method for relay D2D systems based on inter-link interference is proposed to solve the problem that both cellular links and D2D links are eavesdropped at the same time. First, the downlink transmission mode between the cellular link and the D2D link is determined, and then artificial noise is added to the transmission signal of the base station and the relay node to co-operate to interfere with the eavesdropper. Finally, the power allocation and D2D power control of the base station are optimized to ensure the security of the system with different types of inter-link interference. Simulation results show that the proposed secure communication method improves the security rate by 1.5 bits / Hz compared with the precoding method of SVD (Singular Value Decomposition) and ZF (Zero-Forcing).
【作者單位】: 國家數(shù)字交換系統(tǒng)工程技術研究中心;
【基金】:國家自然科學基金(No.61379006) 國家863計劃項目(No.2015AA01A708) 中國博士后科學基金資助項目(No.2016M592990)
【分類號】:TN929.5
本文編號:2436118
[Abstract]:In a D2D (Device-to-Device) system with relay nodes, a secure communication method for relay D2D systems based on inter-link interference is proposed to solve the problem that both cellular links and D2D links are eavesdropped at the same time. First, the downlink transmission mode between the cellular link and the D2D link is determined, and then artificial noise is added to the transmission signal of the base station and the relay node to co-operate to interfere with the eavesdropper. Finally, the power allocation and D2D power control of the base station are optimized to ensure the security of the system with different types of inter-link interference. Simulation results show that the proposed secure communication method improves the security rate by 1.5 bits / Hz compared with the precoding method of SVD (Singular Value Decomposition) and ZF (Zero-Forcing).
【作者單位】: 國家數(shù)字交換系統(tǒng)工程技術研究中心;
【基金】:國家自然科學基金(No.61379006) 國家863計劃項目(No.2015AA01A708) 中國博士后科學基金資助項目(No.2016M592990)
【分類號】:TN929.5
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