单载波频域均衡系统中基于信道频域响应的密钥生成机制研究

doi:10.11999/JEIT170772

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Abstract A secret key generation scheme is proposed in a Single Carrier Frequency Domain Equalization system (SC-FDE). The scheme uses the Channel Frequency Response (CFR) to generate the secret keys, which is termed as CFR-Key. The principle of the CFR-Key scheme is introduced and formulate the secret key capacity is derived based on mutual information theory. The Signal-Noise Ratio (SNR) is proved that is the unique factor and affects the quantization levels. The optimum quantization levels is designed to achieve the best key generation rate when SNR is given. Simulation results show that comparing with the secret key generation scheme based on the Channel Impulse Response (CIR-Key), the proposed scheme can significantly improve the secret key capacity.

Key words： Secret key generation Frequency domain response of channel Single Carrier Frequency Domain Equalization system (SC-FDE)

Received: 02 August 2017 Published: 14 March 2018

PACS:

TN92

Fund:The National Natural Science Foundation of China (61671252, 61772287), The Key University Science Research Project of Jiangsu Province (14KJA510003), The Postgraduate Research & Practice Innovation Program of Jiangsu Province (CXZZ11_0394)

Corresponding Authors: YANG Zhen E-mail: yangz@njupt.edu.cn

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	KONG Yuanyuan
	YANG Zhen
	Lü Bin
	TIAN Feng

Cite this article:

KONG Yuanyuan,YANG Zhen,Lü Bin等. Study on Secret Key Generation Based on Frequency Domain Response of Channel in Single Carrier Frequency Domain Equalization Systems[J]. JEIT, 2018, 40(5): 1017-1023.

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http://jeit.ie.ac.cn/EN/10.11999/JEIT170772 OR http://jeit.ie.ac.cn/EN/Y2018/V40/I5/1017

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