Basic study on agreement verification of channel coefficient sequence in mobile communication channel

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  • 移動通信路におけるチャネル係数列の一致確認に関する基礎検討
  • イドウ ツウシンロ ニオケル チャネル ケイスウレツ ノ イッチ カクニン ニカンスル キソ ケントウ

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Abstract

There are many studies of secret key agreement based on radio propagation characteristics, but there are few studies of the agreement of analog secret information (key). This paper deals with the agreement verification of the channel coefficient sequence (analog secret key) by the information exchange using the public channel. This paper showed a principle to reduce information leakage due to information exchange and devised agreement verification method to use unique event of channel coefficient sequence. This paper also showed examples of unique event such as three points of crossing with a straight line and the wave form of channel coefficient, and product set of the big and small decision of the channel coefficient, and this paper clarified possibility and a problem of the technique using them.

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