Shimpei Yasukawa

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As a countermeasure for eavesdroppers in wireless communication, a secret key agreement scheme using a variable directional antenna named ESPAR antenna was developed. In this paper, we describe an improved key generation method using multi-level quantization and parity check in the secret key agreement scheme. It enhances key agreement probability in(More)
In this paper, we proposed an adaptive key generation based on the channel characteristics in OFDM mobile radio. We have shown that DCT-based preprocessing can remove the redundancy of the channel response and it also reduces the error in the key candidate. The simulation results show that the proposed adaptive key generation realizes high-level key(More)
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