Physical layer security in full-duplex cellular networks
Physical layer security in full-duplex cellular networks
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DOI：
10.1109/pimrc.2017.8292465
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发表时间：
2017-10
期刊：
影响因子：
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通讯作者：
Ayda Babaei;H. Aghvami;Arman Shojaeifard;Kai‐Kit Wong
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文献类型：
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作者：
Ayda Babaei;H. Aghvami;Arman Shojaeifard;Kai‐Kit Wong
在这项工作中，我们调查的物理层安全（PHYLS）性能的全双工（FD）蜂窝网络，其中下行链路（DL）和上行链路（UL）发生在相同的射频（RF）资源。这里，基站（BS）和移动的终端（MT）的位置从平稳泊松点过程（PPP）中得出。此外，窃听者（ED）的位置是未知的网络，因此从一个独立的PPP建模。我们的特征信号干扰噪声比（SINR）分布在参考BS，MT，和最恶意的ED。因此，我们制定明确的表达的保密率在UL和DL的FD蜂窝网络正在考虑中。我们的研究结果表明，FD与HD操作的选择，除了提高频谱效率，可以提高保密率，特别是对于超密集部署。
In this work, we investigate the physical layer security (PHYLS) performance of full-duplex (FD) cellular networks, where the downlink (DL) and uplink (UL) occur over the same radio-frequency (RF) resources. Here, the locations of the base stations (BSs) and mobile terminals (MTs) are drawn from stationary Poisson point processes (PPPs). Moreover, the eavesdroppers (EDs) locations are unknown to the network, and are thus modeled from an independent PPP. We characterize the signal-to-interference-plus-noise ratio (SINR) distributions at the reference BS, MT, and most malicious EDs. Accordingly, we develop explicit expressions for the secrecy rates in both UL and DL of the FD cellular network under consideration. Our finding show that the choice of FD versus HD operation, in addition to improving the spectral efficiency, can enhance the secrecy rate, particularly for ultra-dense deployments.