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

SHEN Li-hua; LIN Sheng-bin; HUANG Kai-zhi

doi:10.3969/j.issn.0372-2112.2017.03.022

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

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- Analysis of the Artificial Noise Based System Security Performance Under Malicious Pilot Contamination
- Acta Electronica Sinica Vol. 45, Issue 3, Pages: 650-655(2017)
- 作者机构：
  
  1. 浙江工业大学之江学院,浙江,绍兴,312000
  3. 重庆通信学院,重庆,400000
  4. 国家数字交换系统工程技术研究中心,河南,郑州,450002
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0372-2112.2017.03.022
  CLC： TN918
- Published：2017
- 稿件说明：
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SHEN Li-hua, LIN Sheng-bin, HUANG Kai-zhi. Analysis of the Artificial Noise Based System Security Performance Under Malicious Pilot Contamination[J]. Acta Electronica Sinica, 2017, 45(3): 650-655.
DOI：

SHEN Li-hua, LIN Sheng-bin, HUANG Kai-zhi. Analysis of the Artificial Noise Based System Security Performance Under Malicious Pilot Contamination[J]. Acta Electronica Sinica, 2017, 45(3): 650-655. DOI： 10.3969/j.issn.0372-2112.2017.03.022.

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.

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.

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