电子学报 ›› 2017, Vol. 45 ›› Issue (3): 650-655.DOI: 10.3969/j.issn.0372-2112.2017.03.022

• 学术论文 • 上一篇    下一篇

恶意导频干扰对采用人工噪声方案系统的安全性能影响分析

沈利华1, 林胜斌2, 黄开枝3   

  1. 1. 浙江工业大学之江学院, 浙江绍兴 312000;
    2. 重庆通信学院, 重庆 400000;
    3. 国家数字交换系统工程技术研究中心, 河南郑州 450001
  • 收稿日期:2015-06-01 修回日期:2016-01-04 出版日期:2017-03-25
    • 作者简介:
    • 沈利华 女,1978年生,浙江绍兴人,现为浙江工业大学之江学院副教授,硕士,主要研究领域为网络安全、算法设计和无线通信技术.E-mail:shenlihua777@tom.com;林胜斌 男,1990年生,浙江温州人,硕士生,研究方向为移动通信、物理层安全.E-mail:realbinforever@163.com;黄开枝 女,1973年生,安徽来安人,现为国家数字交换系统工程技术研究中心教授,博士生导师,主要研究领域为无线与移动通信、无线物理层安全技术、异构无线网络安全等.E-mail:huangkaizhi@tsinghua.org.cn
    • 基金资助:
    • 国家863高技术研究发展计划 (No.SS2015AA011306); 国家自然科学基金 (No.61379006); 科技部科技支撑计划 (No.2014BAH30B01)

Analysis of the Artificial Noise Based System Security Performance Under Malicious Pilot Contamination

SHEN Li-hua1, LIN Sheng-bin2, HUANG Kai-zhi3   

  1. 1. Zhijiang College of Zhejiang University of Technology, Shaoxing, Zhejiang 312000, China;
    2. Chongqing Communication Institute, Chongqing 400000, China;
    3. National Digital Switching System Engineering & Technological Research Center, Zhengzhou, Henan 450001, China
  • Received:2015-06-01 Revised:2016-01-04 Online:2017-03-25 Published:2017-03-25
    • Supported by:
    • National High-tech R&D Program of China  (863 Program) (No.SS2015AA011306); National Natural Science Foundation of China (No.61379006); Key Technology R&D Program of Ministry of Science and Technology (No.2014BAH30B01)

摘要:

针对窃听方发送恶意导频干扰破坏系统安全性能的问题,本文将研究场景扩展到三节点MIMO(Multple-Input Multiple-Output)网络,首先分析存在恶意导频干扰时最小二乘和最小均方误差准则下的信道估计结果,并推导基于人工噪声的系统安全速率公式,得出当窃听方到达发送方的导频干扰功率大于合法接收方达到的功率时,安全速率值只能为零.然后,进一步分别研究半双工窃听方和全双工窃听方场景下的最优功率分配方案.最后,通过数值仿真分析窃听者位置、窃听者类型和干扰功率等因素对安全性能的影响.

关键词: 物理层安全, 恶意导频干扰, 安全速率, 功率分配

Abstract:

According to the security problem caused by the malicious pilot contamination,this paper considers a three-node MIMO(Multple-Input Multiple-Output)network.First,the channel estimation results based on the least square criterion and the minimum mean square error criterion under the malicious pilot contamination are analyzed.Then by deducing the secrecy rate,we conclude that when the power of the pilot contamination from the eavesdropper is larger than that from the legitimate receiver,the secrecy rate is zero.Finally,the optimal power allocation schemes for the half-duplex and full-duplex eavesdropper are further studied,respectively.Simulation results show the effects of eavesdropping position,eavesdropping type,jamming power and other factors on the security performance.

Key words: physical layer security, malicious pilot contamination, secrecy rate, power allocation

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