發(fā)布時間：2018-06-22 09:21

  本文選題：大規(guī)模MIMO + DD��； 參考：《重慶郵電大學(xué)學(xué)報(自然科學(xué)版)》2017年01期

【摘要】：隨著量子計算機等計算設(shè)備的飛速發(fā)展,傳統(tǒng)的加密技術(shù)正面臨著挑戰(zhàn);由于物理層安全充分利用了無線信道的特性,其被認為是一種有效的解決方案。為此,提出了一種安全的混合網(wǎng)絡(luò)模型,其中,端到端(device-to-device,D2D)網(wǎng)絡(luò)覆蓋于大規(guī)模多入多出(multiple-input multiple-output,MIMO)宏蜂窩之上,被動的惡意竊聽者(eavesdropper,Eve)能夠竊聽所有的無線信道;同時,為了提高能量效率,D2D發(fā)射機不僅可以從專用的PB(power beacon)收集能量,還可以從附近的射頻干擾信號中收集能量。對此混合網(wǎng)絡(luò)模型,假設(shè)所有網(wǎng)絡(luò)元素的位置都服從獨立泊松點過程,利用隨機幾何,得到了任一D2D發(fā)射機采集足夠能量的概率;基于此概率,獲得了蜂窩網(wǎng)用戶和D2D用戶的各態(tài)歷經(jīng)速率和安全中斷概率。結(jié)果表明,由于D2D發(fā)射機可以從周圍的射頻干擾信號中采集能量,系統(tǒng)的能量效率得到顯著提升,同時將專用PB的信號視作一種人工噪聲,有效地提高了網(wǎng)絡(luò)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.
【作者單位】： 西北師范大學(xué)計算機科學(xué)與工程學(xué)院;南京郵電大學(xué)江蘇省無線通信重點實驗室;
【基金】：國家自然科學(xué)基金(61261015;61561043) 2014年甘肅省屬普通高�；究蒲袠I(yè)務(wù)費專項資金~~
【分類號】：TN929.5

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本文編號：2052365