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arXiv 1608.05211cs.ITmath.IT
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人工噪声对蜂窝网络的影响:随机几何方法

Impact of Artificial Noise on Cellular Networks: A Stochastic Geometry Approach

Hui-Ming Wang, Chao Wang, Tong-Xing Zheng, Tony Q. S. Quek

摘要:

研究了多小区蜂窝网络中人工噪声对目标小区保密性能的影响。虽然AN被证明是确保点对点/单小区机密传输的有效方法,但它会增加多小区蜂窝网络中的小区间干扰,这可能会降低网络的可靠性和保密性能。为了分析目标小区的平均保密性能,这是显着的利益,我们采用了混合蜂窝部署模型,其中目标小区是一个固定大小的圆和目标小区外的基站(BS)被建模为一个齐次泊松点过程(PPP)。我们调查的影响AN的可靠性和安全性的用户在目标小区中存在的导频污染,使用随机几何方法。给出了目标小区中其蜂窝用户(CU)的平均连接中断和保密中断的分析结果,便于评估目标小区中随机选择的CU的平均保密吞吐量。它表明,与期望信号和AN之间的优化功率分配,AN方案是一个有效的解决方案,在多小区蜂窝网络中的通信安全。

英文摘要:

This paper studies the impact of artificial noise (AN) on the secrecy performance of a target cell in multi-cell cellular networks. Although AN turns out to be an efficient approach for securing a pointto-point/single cell confidential transmission, it would increase the inter-cell interference in a multi-cell cellular network, which may degrade the network reliability and secrecy performance. For analyzing the average secrecy performance of the target cell which is of significant interest, we employ a hybrid cellular deployment model, where the target cell is a circle of fixed size and the base stations (BSs) outside the target cell are modeled as a homogeneous Poisson point process (PPP). We investigate the impact of AN on the reliability and security of users in the target cell in the presence of pilot contamination using a stochastic geometry approach. The analytical results of the average connection outage and the secrecy outage of its cellular user (CU) in the target cell are given, which facilitates the evaluation of the average secrecy throughput of a randomly chosen CU in the target cell. It shows that with an optimized power allocation between the desired signals and AN, the AN scheme is an efficient solution for securing the communications in a multi-cell cellular network.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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