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認(rèn)知無(wú)線電非正交多址接入隨機(jī)網(wǎng)絡(luò)物理層安全性能分析

于寶泉 蔡躍明 胡健偉

于寶泉, 蔡躍明, 胡健偉. 認(rèn)知無(wú)線電非正交多址接入隨機(jī)網(wǎng)絡(luò)物理層安全性能分析[J]. 電子與信息學(xué)報(bào), 2020, 42(4): 950-956. doi: 10.11999/JEIT190049
引用本文: 于寶泉, 蔡躍明, 胡健偉. 認(rèn)知無(wú)線電非正交多址接入隨機(jī)網(wǎng)絡(luò)物理層安全性能分析[J]. 電子與信息學(xué)報(bào), 2020, 42(4): 950-956. doi: 10.11999/JEIT190049
Baoquan YU, Yueming CAI, Jianwei HU. Performance Analysis of Physical Layer Security for Cognitive Radio Non-Orthogonal Multiple Access Random Network[J]. Journal of Electronics & Information Technology, 2020, 42(4): 950-956. doi: 10.11999/JEIT190049
Citation: Baoquan YU, Yueming CAI, Jianwei HU. Performance Analysis of Physical Layer Security for Cognitive Radio Non-Orthogonal Multiple Access Random Network[J]. Journal of Electronics & Information Technology, 2020, 42(4): 950-956. doi: 10.11999/JEIT190049

認(rèn)知無(wú)線電非正交多址接入隨機(jī)網(wǎng)絡(luò)物理層安全性能分析

doi: 10.11999/JEIT190049
基金項(xiàng)目: 國(guó)家自然科學(xué)基金(61771487, 61371122, 61471393)
詳細(xì)信息
    作者簡(jiǎn)介:

    于寶泉:男,1996年生,博士生,主要研究方向?yàn)橐苿?dòng)通信等

    蔡躍明:男,1961年生,教授,博士生導(dǎo)師,主要研究方向?yàn)橐苿?dòng)通信、協(xié)同通信等

    胡健偉:男,1990年生,博士生,主要研究方向?yàn)橐苿?dòng)通信、協(xié)同通信等

    通訊作者:

    蔡躍明 caiym@vip.sina.com

  • 中圖分類(lèi)號(hào): TN926

Performance Analysis of Physical Layer Security for Cognitive Radio Non-Orthogonal Multiple Access Random Network

Funds: The National Natural Science Foundation of China(61771487, 61371122,61471393)
  • 摘要:

    該文針對(duì)干擾源以及竊聽(tīng)節(jié)點(diǎn)均隨機(jī)分布的通信場(chǎng)景,分析了認(rèn)知無(wú)線電啟發(fā)式非正交多址接入(CR-NOMA)網(wǎng)絡(luò)中次用戶(hù)通信對(duì)的安全通信性能。采用隨機(jī)幾何理論,將竊聽(tīng)節(jié)點(diǎn)和干擾節(jié)點(diǎn)建模為服從特定分布的齊次泊松點(diǎn)過(guò)程(PPP)。首先,在保證主用戶(hù)通信對(duì)通信可靠性的前提下,得到了發(fā)端設(shè)定的功率分配系數(shù),進(jìn)一步得到了次用戶(hù)通信對(duì)的連接中斷概率和安全中斷概率的閉式表達(dá)式。隨后,得到了功率分配系數(shù)隨主用戶(hù)可靠性能約束的變化規(guī)律。最后,研究了次用戶(hù)對(duì)的中斷概率隨著竊聽(tīng)節(jié)點(diǎn)密度、發(fā)端發(fā)送功率的變化情況,結(jié)果表明干擾信號(hào)的增強(qiáng)在降低網(wǎng)絡(luò)可靠性能的同時(shí),換來(lái)了安全性能的提高。仿真結(jié)果驗(yàn)證了理論分析的正確性。

  • 圖  1  網(wǎng)絡(luò)模型示意圖

    圖  2  功率分配系數(shù)隨主用戶(hù)中斷概率閾值變化圖

    圖  3  中斷概率隨發(fā)送總功率變化圖

    圖  4  中斷概率隨竊聽(tīng)節(jié)點(diǎn)密度變化圖

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出版歷程
  • 收稿日期:  2019-01-17
  • 修回日期:  2019-06-30
  • 網(wǎng)絡(luò)出版日期:  2020-01-11
  • 刊出日期:  2020-06-04

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