基于接收信号的多用户密钥生成方案

doi:10.11959/j.issn.2096-109x.2018082

Abstract

Abstract:

The secret key generation method based on channel characteristic provides a new way for communication security.But under the conditions of multiuser and slow fading,because of the slow channel parameter changing rate,using the secret key generation method above can result in a low secret key rate.To solve this problem,a multiuser secret key generation method based on the received signal was proposed.By distributing the random signals to different users using block diagonalization precoding,base station and user can extract the secret key from the received signal.The novel method could significantly increase the secret key rate of multiuser under the quasi-static channel and slow-fading channel,which is verified by simulations.

Key words: secret key generation, MISO, multiuser, received signal

CLC Number:

TP393

Aolin CAI,Liang JIN,Zhou ZHONG,Yangming LOU. Multiuser secret key generation based on received signal[J]. Chinese Journal of Network and Information Security, 2018, 4(10): 52-58.

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References 17

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Multiuser secret key generation based on received signal

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