大规模MIMO蜂窝网与D2D混合网络物理层安全性能研究

发布时间：2018-06-22 09:21

本文选题：大规模MIMO + DD　；参考：《重庆邮电大学学报(自然科学版)》2017年01期

【摘要】：随着量子计算机等计算设备的飞速发展,传统的加密技术正面临着挑战;由于物理层安全充分利用了无线信道的特性,其被认为是一种有效的解决方案。为此,提出了一种安全的混合网络模型,其中,端到端(device-to-device,D2D)网络覆盖于大规模多入多出(multiple-input multiple-output,MIMO)宏蜂窝之上,被动的恶意窃听者(eavesdropper,Eve)能够窃听所有的无线信道;同时,为了提高能量效率,D2D发射机不仅可以从专用的PB(power beacon)收集能量,还可以从附近的射频干扰信号中收集能量。对此混合网络模型,假设所有网络元素的位置都服从独立泊松点过程,利用随机几何,得到了任一D2D发射机采集足够能量的概率;基于此概率,获得了蜂窝网用户和D2D用户的各态历经速率和安全中断概率。结果表明,由于D2D发射机可以从周围的射频干扰信号中采集能量,系统的能量效率得到显著提升,同时将专用PB的信号视作一种人工噪声,有效地提高了网络的安全性能。
[Abstract]:With the rapid development of computing devices such as quantum computers, the traditional encryption technology is facing a challenge. Due to the physical layer security to make full use of the characteristics of wireless channels, it is considered to be an effective solution. In this paper, a secure hybrid network model is proposed, in which the device-to-deviceD2D network is overlaid on the multiple-input multiple-output MIMO macro cell, and the passive eavesdropperEve can eavesdrop all the wireless channels. In order to improve energy efficiency, the D2D transmitter can collect energy not only from special PB (power beacon), but also from nearby radio frequency interference signals. For this hybrid network model, assuming that all the network elements are in the independent Poisson point process, using random geometry, the probability of any D2D transmitter collecting sufficient energy is obtained. The ergodic rate and security interrupt probability of both cellular and D2D users are obtained. The results show that the energy efficiency of the system can be greatly improved because the D2D transmitter can collect energy from the surrounding radio frequency interference signal, and the special PB signal is regarded as a kind of artificial noise, which effectively improves the security performance of the network.
【作者单位】：西北师范大学计算机科学与工程学院;南京邮电大学江苏省无线通信重点实验室;
【基金】：国家自然科学基金(61261015;61561043) 2014年甘肃省属普通高校基本科研业务费专项资金~~
【分类号】：TN929.5

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