通信学报2025，Vol.46Issue(1)：124-143,20.DOI:10.11959/j.issn.1000-436x.2025005
基于毫米波MIMO信道多维优势提取的密钥协商方法
Key agreement method based on multi-dimensional advantage distillation over mmWave MIMO channels
摘要
Abstract
To achieve efficient physical layer secure secret key agreement in millimeter wave(mmWave)multiple input multiple output(MIMO)communication systems,a key agreement method was proposed based on multi-dimensional ad-vantage distillation(AD)exploiting the multi-dimensional characteristics of mmWave MIMO channel parameters.The mmWave MIMO channel was modeled as a high-dimensional tensor spanning the space,time,and frequency domains.The legitimate communication parties alternately sent pilot symbols,based on the uniqueness property of tensor decom-position,simultaneously acquired estimates of multiple channel parameters,i.e.amplitude,angle,and delay,in a single shot.The legitimate communication parties used the common information contained in the estimates of the multiple chan-nel parameters as the source of common randomness for advantage distillation,thus significantly improving the overall efficiency of key agreement.Further,a correlation model between the legitimate and eavesdropping channel parameters was derived through a joint geometric and statistical analysis of the channels.Simulation studies were conducted to evaluate the key rate performance of the proposed method under different channel correlation scenarios and to investi-gate the impact of different factors on the key rate.关键词
多维优势提取/密钥协商/毫米波信道/张量分解/信道相关性Key words
multi-dimensional advantage distillation/key agreement/mmWave channel/tensor decomposition/channel correlation分类
电子信息工程引用本文复制引用
毛丹丹,王宁,甄姬娜,张宁,黄开枝..基于毫米波MIMO信道多维优势提取的密钥协商方法[J].通信学报,2025,46(1):124-143,20.基金项目
国家自然科学基金资助项目(No.61771431) （No.61771431）
毫米波全国重点实验室开放课题基金资助项目(No.K202214) The National Natural Science Foundation of China(No.61771431),The Open Research Fund of the State Key Laboratory of Millimeter Waves(No.K202214) （No.K202214）
