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A physical layer secret key consistency enhancement scheme using constellation decision information

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Security and Safety

Security and Safety 2024年第1期 88-103页

作者： Zheyuan Deng Liang Jin Xiaoyan Hu Zhou Zhong yangming lou Ge Niu PLA Strategic Support Force Information Engineering University

Secret key generation based on a wireless channel(WC-SKG) is a promising solution to address the security issues in wireless communication. However, the consistency of channel estimation between two legal communication nodes in WC-SKG is often poor due to the receiver noise, signal power, etc., leading to a low secret key generation rate(SKGR). Although there are several denoising algorithms such as orthogonal transformation to address this issue, existing schemes overlook the fact that data symbols are also affected by the channel. This results in existing schemes only using the pilot symbols for channel estimation and not fully utilizing the received signal power of the WC-SKG. To address this issue, we propose a consistency enhancement algorithm based on constellation decision information(CEA-CDI), which utilizes both pilot symbols and soft decision information of data symbols to improve SKGR. Monte Carlo simulation and numerical results demonstrate that our proposed scheme can improve performance by approximately 16 dB compared to initial channel estimation.

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Joint radio frequency front-end and digital back-end antijamming scheme based on a metasurface antenna array

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Frontiers of Information Technology & Electronic Engineering 2023年第12期24卷 1739-1751页

作者： yangming lou Liang JIN Wenyu JIANG Shuaifang XIAO PLA Strategic Support Force Information Engineering University Zhengzhou450000China

An array’s degree of freedom(DoF)determines the number of jamming incidents that can be managed and the antijamming *** arrays can improve the DoF only by increasing the number of *** the other hand,when the received signal is digitized,high-power jamming will reduce the number of bits used to represent the desired signal,further increasing the difficulty of back-end antijamming based on digital signal *** this paper,we propose a joint radio frequency(RF)front-end and digital back-end antijamming scheme based on a metasurface antenna *** metasurface antennas can rapidly switch patterns when receiving signals,so that a single channel can be equivalent to multiple channels and increase the *** use independent component analysis to estimate the channel and then optimize the array parameters under the minimum signal-to-jamming ratio constraint of each *** proposed scheme works well under high-power jamming conditions by suppressing jamming at the RF front end and using a low-precision analog-to-digital *** results show that the proposed scheme reduces the bit error rate of the received signals by one order of magnitude compared with the conventional array.

关键词： Antijamming Multiple-input multiple-output Metasurface antenna array Independent component analysis

Physical-Layer Key Generation Based on Multipath Channel Diversity Using Dynamic Metasurface Antennas

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China Communications 2023年第4期20卷 153-166页

作者： Zheng Wan yangming lou Xiaoming Xu Jinmei Yang Wenyu Jiang Kaizhi Huang Liang Jin Information Engineering University Zhengzhou 450001China Purple Mountain Laboratories for Network and Communication Security Nanjing 210096China

Physical layer key generation(PKG)technology leverages the reciprocal channel randomness to generate the shared secret *** low secret key capacity of the existing PKG schemes is due to the reduction in degree-of-freedom from multipath fading channels to multipath combined *** improve the wireless key generation rate,we propose a multipath channel diversity-based PKG *** by dynamic metasurface antennas(DMA),a two-stage multipath channel parameter estimation algorithm is proposed to efficiently realize super-resolution multipath parameter *** proposed algorithm first estimates the angle of arrival(AOA)based on the reconfigurable radiation pattern of DMA,and then utilizes the results to design the training beamforming and receive beamforming to improve the estimation accuracy of the path *** multipath separation and parameter estimation,multi-dimensional independent path gains are utilized for generating secret ***,we analyze the security and complexity of the proposed scheme and give an upper bound on the secret key capacity in the high signal-to-noise ratio(SNR)*** simulation results demonstrate that the proposed scheme can greatly improve the secret key capacity compared with the existing schemes.

关键词： physical layer security multipath channel diversity physical layer key generation dynamic metasurface antennas

Analysis and Application of Endogenous Wireless Security Principle for Key Generation

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China Communications 2021年第4期18卷 99-114页

作者： Xu Wang Liang Jin yangming lou Xiaoming Xu Information Engineering University Zhengzhou 450001China

The open and broadcast nature of wireless channels leads to the inherent security problem of information leakage in wireless *** can utilize endogenous security functions to resolve this *** fundamental solution is channel-based mechanisms,like physical layer secret ***,current investigations have not fully exploited the randomness of wireless channels,making secret key rates not ***,user data can be encrypted by reducing the data rate to match the secret key *** on the analysis of the endogenous wireless security principle,we proposed that the channel-based endogenous secret key rate can nearly match the maximum data rate in the fast-fading *** that,we validated the proposition in an instantiation system with multiple phase shift keying(MPSK)inputs from the perspectives of both theoretical analysis and simulation *** results indicate that it is possible to accomplish the onetime pad without decreasing the data rate via channelbased endogenous ***,we can realize highspeed endogenously secure transmission by introducing independent channels in the domains of frequency,space,or *** conclusions derived provide a new idea for wireless security and promote the application of the endogenous security theory.

关键词： endogenous wireless security one-time pad physical layer security secret keys generation

Secret Key Generation Based on Two-Way Randomness for TDD-SISO System

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China Communications 2018年第7期15卷 202-216页

作者： Shengjun Zhang Liang Jin yangming lou Zhou Zhong National Digital Switching System Engineering&Technological Research Center Zhengzhou 450002China

A novel secret key generation(SKG)method based on two-way randomness is proposed for TDD-SISO *** legitimate transceivers mutually transmit their own random signal via reciprocal wireless channel,then the multiplication of transmitted and received signal is used as common randomness to generate secret *** quasi-static channel,the theoretical SKG rates(SKGRs)of the three SKG methods,namely wireless channel based,one-way randomness and two-way randomness,are derived and ***,two practical SKG schemes based on twoway randomness,Scheme-1bit and Scheme-3bit,are completely designed and ***,Scheme-1bit applies to low signal to noise ratio(SNR)scenarios and achieves 0.13~0.86bit/T_s SKGR and 10^(-2)~10^(-5) level secret key outage probability(SKOP),while Scheme-3bit fits high SNR situation and obtains 0.93~1.35bit/T_s SKGR and 10^(-3)~10^(-4) level *** last,the national institute of standards and technology(NIST)test is conducted to evaluate the secret key randomness(SKRD)and the test results show that both of the proposed schemes have passed the test.

关键词： secret key generation physical layer security information reconciliation information theory

Introduction to Wireless Endogenous Security and Safety:Problems, Attributes, Structures and Functions

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China Communications 2021年第9期18卷 88-99页

作者： Liang Jin Xiaoyan Hu yangming lou Zhou Zhong Xiaoli Sun Huiming Wang Jiangxing Wu PLA Strategic Support Force Information Engineering University Zhengzhou 450002China Xi’an Jiaotong University Xi’an710049China Purple Mountain Laboratories:Networking Communications and SecurityNanjing 211111China

The information security and functional safety are fundamental issues of wireless communications *** endogenous security principle based on Dynamic Heterogeneous Redundancy provides a direction for the development of wireless communication security and safety *** paper introduces the concept of wireless endogenous security from the following four ***,we sorts out the endogenous security problems faced by the current wireless communications system,and then analyzes the endogenous security and safety attributes of the wireless *** that,the endogenous security and safety structure of the wireless communications system is given,and finally the applications of the existing wireless communication endogenous security and safety functions are listed.

关键词： wireless communication endogenous security information security functional safety

基于多径信道能量随机动态打散的隐蔽无线通信方案

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电子与信息学报 2023年第2期45卷 505-515页

作者：林钰达金梁黄开枝楼洋明孙小丽中国人民解放军战略支援部队信息工程大学郑州450002

为应对无线通信中的未知非法检测威胁,该文提出一种随机跳径隐蔽通信方案,实现了信号能量在多径上随机动态打散。首先,基于我方多径信道信息设计了隐蔽传输策略,并构建了敌方检测模型。接着,通过引入相关性纠偏因子,分别推导了所提方案... 详细信息

为应对无线通信中的未知非法检测威胁,该文提出一种随机跳径隐蔽通信方案,实现了信号能量在多径上随机动态打散。首先,基于我方多径信道信息设计了隐蔽传输策略,并构建了敌方检测模型。接着,通过引入相关性纠偏因子,分别推导了所提方案、选最强径方案和经典最大比发送方案的敌方平均接收信噪比(SNR)闭式表达式,并基于曲线拟合的方法计算了我方最小平均隐蔽概率,完成了隐蔽性能定性和定量评估。然后,推导了我方平均接收信噪比闭式解,分析了系统速率性能。仿真实验表明,所提方案不仅在未知敌方任何信息的一般情形下具有隐蔽性能优势,而且在敌方抵近我方的极端情形下可以最大程度地解决隐蔽通信失效问题。

关键词：隐蔽无线通信多径信道隐蔽概率

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基于可重构智能表面的单天线盲抗干扰方案

信息工程大学学报 2023年第4期24卷 406-414页

作者：楼洋明金梁信息工程大学河南郑州450001

恶意干扰会严重影响无线通信性能,因此未知信道信息条件的盲抗干扰问题引起广泛研究。当阵列自由度不足时将会影响盲抗干扰性能,针对现有研究中的自由度需求,给出一种基于可重构智能表面的单天线盲抗干扰方案。利用可重构智能表面在信... 详细信息

恶意干扰会严重影响无线通信性能,因此未知信道信息条件的盲抗干扰问题引起广泛研究。当阵列自由度不足时将会影响盲抗干扰性能,针对现有研究中的自由度需求,给出一种基于可重构智能表面的单天线盲抗干扰方案。利用可重构智能表面在信号接收时快速改变反射权值,令接收信号经历不同复合信道到达天线;该方式使单天线等效为多天线阵列,提高自由度;在此基础上利用独立成分分析算法分离期望信号与干扰。仿真结果表明,在高干信比条件下,该方案性能优于典型基于可重构智能表面被动波束赋形的抗干扰方案。

关键词：盲抗干扰可重构智能表面自由度独立成分分析

噪声不确定时基于波束成形的隐蔽无线通信性能分析

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通信学报 2020年第7期41卷 49-58页

作者：林钰达金梁周游楼洋明信息工程大学河南郑州450002 国家数字交换系统工程技术研究中心河南郑州450002

为了在噪声不确定时实现瑞利衰落环境下的隐蔽无线通信,采用基于复高斯随机编码和波束成形的下行隐蔽无线通信方案,重点分析了隐蔽无线通信性能。首先,利用假设检验理论分析基于该方案通信的隐蔽概率;然后,给出并证明非法检测方的最优... 详细信息

为了在噪声不确定时实现瑞利衰落环境下的隐蔽无线通信,采用基于复高斯随机编码和波束成形的下行隐蔽无线通信方案,重点分析了隐蔽无线通信性能。首先,利用假设检验理论分析基于该方案通信的隐蔽概率;然后,给出并证明非法检测方的最优检测门限,并进一步得到系统的平均隐蔽概率、连接中断概率和隐蔽吞吐量闭式表达式;最后,通过联合设计发射功率和目标隐蔽速率,实现系统最大隐蔽吞吐量的优化目标,并给出了基于分步搜索的相应求解算法。仿真结果表明,波束成形技术能够为隐蔽无线通信带来一定增益;与考虑合法接收方不受噪声不确定影响的理想情形相比,考虑合法接收方非理想情形时的隐蔽吞吐量有明显下降,几乎不受环境基本噪声水平的影响。

关键词：隐蔽无线通信噪声不确定波束成形隐蔽吞吐量