Optimal impersonation of CSI for maximizing leaked information to untrusted relay in PLNC
Optimal impersonation of CSI for maximizing leaked information to untrusted relay in PLNC
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DOI：
10.1109/wcnc.2016.7565098
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发表时间：
2016-04
期刊：
影响因子：
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通讯作者：
O. Takyu;Kengo Matsumoto;T. Ohtsuki;T. Fujii;F. Sasamori;S. Handa
中科院分区：
文献类型：
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作者：
O. Takyu;Kengo Matsumoto;T. Ohtsuki;T. Fujii;F. Sasamori;S. Handa
在物理层网络编码（PLNC）中，由于两个信号源同时进入中继站，由于两个发射信号之间的相互干扰，中继站很难对每个信息进行解调。PLNC实现了基于物理层安全（PLS）的高安全性中继通信。信号源需要基于信道状态信息（CSI）的发射功率控制来保持安全的互干扰。然而，不受信任的中继可能冒充CSI破坏它。到目前为止，作者通过模拟CSI对泄漏到不可信中继的信息量进行了评估，但泄漏的信息量并不是最大的。为了防止CSI的模拟，需要建立最强大的不可信中继模型来最大限度地泄漏信息。本文通过一个线性规划问题构造了CSI的最优模拟。
In Physical Layer Network Coding (PLNC), since the two sources access the relay station at a time, the relay station can hardly demodulate each information owing to the mutual interference between two transmitted signals. The PLNC achieves the high secure relay communication based on physical layer security (PLS). The source needs the transmit power control based on the channel state information (CSI) for maintaining the secure mutual interference. The untrusted relay, however, may impersonate the CSI for breaking it. So far, the authors have evaluated the amount of the leaked information to the untrusted relay by the impersonation of CSI but the leaked information is not maximal. For the countermeasure to the impersonation of CSI, the most powerful model of the untrusted relay to maximizing the leaked information is necessary. This paper constructs the optimal impersonation of CSI by a linear programing problem.