Title :
Adaptive key generation in secret key agreement scheme based on the channel characteristics in OFDM
Author :
Yasukawa, Shimpei ; Iwai, Hisato ; Sasaoka, Hideichi
Author_Institution :
Grad. Sch. of Eng., Doshisha Univ., Kyotanabe
Abstract :
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 agreement securely by combining the preprocessing and the error detecting method.
Keywords :
OFDM modulation; cryptography; discrete cosine transforms; error detection; mobile radio; DCT-based preprocessing; OFDM mobile radio; adaptive key generation; channel response; error detecting method; secret key agreement scheme; Character generation; Communication system security; Fading; Fluctuations; Frequency measurement; OFDM; Physical layer; Quantization; Time measurement; Wireless communication;
Conference_Titel :
Information Theory and Its Applications, 2008. ISITA 2008. International Symposium on
Conference_Location :
Auckland
Print_ISBN :
978-1-4244-2068-1
Electronic_ISBN :
978-1-4244-2069-8
DOI :
10.1109/ISITA.2008.4895646
