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大规模 MIMO 蜂窝网与 D2D 混合网络物理层安全性能研究
引用本文:颉满刚,贾向东,周猛.大规模 MIMO 蜂窝网与 D2D 混合网络物理层安全性能研究[J].重庆邮电大学学报(自然科学版),2017,29(1):19-28.
作者姓名:颉满刚  贾向东  周猛
作者单位:1. 西北师范大学计算机科学与工程学院,兰州,730070;2. 西北师范大学计算机科学与工程学院,兰州730070;南京邮电大学江苏省无线通信重点实验室,南京210003
基金项目: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
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-de-vice,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(powerbeacon)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.

关 键 词:大规模MIMO  D2D  蜂窝网  能量收集  物理层安全  人工噪声
收稿时间:2016/7/9 0:00:00
修稿时间:2016/10/21 0:00:00

Study on physical layer security of hybrid networks with massive MIMO cellular and device-to-device networks
XIE Mangang,JIA Xiangdong and ZHOU Meng.Study on physical layer security of hybrid networks with massive MIMO cellular and device-to-device networks[J].Journal of Chongqing University of Posts and Telecommunications,2017,29(1):19-28.
Authors:XIE Mangang  JIA Xiangdong and ZHOU Meng
Institution:College of Computer Science and Engineering, Northwest Normal University, Lanzhou 730070,P. R. China,1. College of Computer Science and Engineering, Northwest Normal University, Lanzhou 730070,P. R. China;2. Wireless Communication Key Lab of Jiangsu Province, Nanjing University of Posts and Telecommunications, Nanjing 210003, P. R. China and College of Computer Science and Engineering, Northwest Normal University, Lanzhou 730070,P. R. China
Abstract:Along with the rapid development of computing devices such as quantum computers, the secrecy provided by the traditional encryption technique is being threatened. However, due to the physical layer secrecy exploiting the channel characters effectively, it is viewed as a promising solution. With this consideration, a secure hybrid network is proposed where the massive multiple-input multiple-output (MIMO) macro cells are overlaid by device-to-device (D2D) networks.All of the wireless channels are exposed to malicious eavesdroppers (Eves). At the same time, to improve the energy efficiency, the battery-free D2D transmitters harvest the energy from not only the dedicated power beacon (PB), but also the ambient radio frequency (RF) interference. For the proposed hybrid networks, by modeling the position of all network elements as independent Poisson point processes and using stochastic geometry, the sufficient probability that a typical D2D transmitter harvests enough energy is achieved. Then, with the derived sufficient probability, the ergodic rates and secrecy outage probability of cellular user and D2D user links are obtained, respectively. The results display that the proposed hybrid network achieves the performance improvement due to exploiting the ambient interference, and has high security due to the equipment of the dedicated PB, of which the signal can be regarded as an artificial noise.
Keywords:massive MIMO  D2D  cellular network  energy harvest  physical layer security  artificial noise
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