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基于物理信道的信道特征提取研究进展 被引量:2

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摘要 无线信道的互易性及信道特征随机性是基于物理信道的密钥生成技术的基础。经典物理层密钥生成过程包括信道探测、信道特征提取、量化、信息协商、保密增强五个阶段。而信道特征提取是密钥生成过程中的关键一步。在信道特征提取过程中,特征信号的选取关系到生成密钥的随机性。随机性的降低会影响生成密钥的安全性,从而降低密钥生成速率。本文概述了物理层密钥生成过程,分析了物理信道中特征信号提取的研究成果,最后讨论下一步的研究方向。
出处 《网络安全技术与应用》 2016年第7期47-48,共2页 Network Security Technology & Application
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