基于幅度和相位联合分区的无线物理层密钥生成方法

李楠楠; 韩瑜; 高宁; 金石

doi:10.11959/j.issn.1000-0801.2021106

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基于幅度和相位联合分区的无线物理层密钥生成方法

研究与开发 | 更新时间：2024-06-05

- 基于幅度和相位联合分区的无线物理层密钥生成方法
- Joint amplitude and phase partition based physical layer key generation method
- 电信科学 2021年37卷第5期页码：100-112
- 作者机构：
  
  1. 东南大学移动通信国家重点实验室，江苏南京 210096
  2. 新加坡科技设计大学，新加坡 487372
- 作者简介：
  
  [ "李楠楠（1997− ），女，东南大学移动通信国家重点实验室硕士生，主要研究方向为物理层密钥生成等" ]
  [ "韩瑜（1991− ），女，博士，现就职于新加坡科技设计大学，主要研究方向为大规模MIMO技术、智能反射面等" ]
  [ "高宁（1989− ），男，博士，东南大学移动通信国家重点实验室助理研究员，主要研究方向为物理层通信安全、无人机集群通信等" ]
  [ "金石（1974− ），男，博士，东南大学移动通信国家重点实验室教授、博士生导师，主要研究方向为5G/6G理论与关键技术、物联网理论与关键技术以及机器学习与大数据处理在移动通信中的应用等" ]
- 基金信息：
  
  国家自然科学基金资助项目;The National Natural Science Foundation of China(62001109);中国博士后科学基金资助项目;The China Postdoctoral Science Foundation(BX20200083)
- DOI：10.11959/j.issn.1000-0801.2021106
  中图分类号： TP309
- 网络出版日期：2021-05，
  
  纸质出版日期：2021-05-20
- 稿件说明：
移动端阅览
李楠楠, 韩瑜, 高宁, 等. 基于幅度和相位联合分区的无线物理层密钥生成方法[J]. 电信科学, 2021,37(5):100-112.

Nannan LI, Yu HAN, Ning GAO, et al. Joint amplitude and phase partition based physical layer key generation method[J]. Telecommunications science, 2021, 37(5): 100-112.
李楠楠, 韩瑜, 高宁, 等. 基于幅度和相位联合分区的无线物理层密钥生成方法[J]. 电信科学, 2021,37(5):100-112. DOI： 10.11959/j.issn.1000-0801.2021106.

Nannan LI, Yu HAN, Ning GAO, et al. Joint amplitude and phase partition based physical layer key generation method[J]. Telecommunications science, 2021, 37(5): 100-112. DOI： 10.11959/j.issn.1000-0801.2021106.

摘要

研究基于无线信道物理层特征的密钥生成方法对于提高无线传输的安全性具有重要意义。考虑多径衰落信道下时分双工（time division duplex，TDD）正交频分复用（orthogonal frequency division multiplexing， OFDM）通信系统，利用 OFDM 多载波优势以及信道互易性，联合使用信道频率响应（channel frequency response，CFR）特征的相位与幅度信息，提出了两种应用于无线物理层密钥生成的算法。理论分析和实验仿真表明，提出的算法生成的初始密钥具有更高的一致性和更小的信息协商开销；可以有效增加密钥长度和增强密钥随机性；此外，对于非法用户的窃听以及主动攻击具有较好的防御能力。

Abstract

A key generation method based on wireless channel physical layer features is of great significance for improving security of wireless transmission.An orthogonal frequency division multiplexing (OFDM) communication system based on time division duplex (TDD) with multipath fading channels was considered.Utilizing the advantages of OFDM multicarrier and the channel reciprocity and combining the phase and amplitude information of channel frequency response (CFR)

two algorithms for physical layer key generation were proposed.Theoretical analysis and experimental simulation show that the proposed algorithm has more consistent and smaller overhead in information negotiation

in addition

the proposed algorithm can increase the key length and enhance randomness

and has a better defense capability against eavesdropping and active attacks of the illegal user.

关键词

Keywords

references

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