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Wireless Qunatum-Key Distribution in RF and Microwave Frequencies

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3 Author(s)
Chamani Jam, N. ; Dept. of Comput. Eng. & Inf. Technol., Amirkabir Univ. of Technol., Tehran ; Khorsandi, S. ; Dehghan, M.

The uncertainty principle says that when elementary quantum systems like photons are used for information transmission, it is impossible in principle to eavesdrop on this media without a high probability of disturbing the transmission in such a way as to be detected. By this way we can make an absolutely secure communication link which can not be threaten by any kind of cheating by an opponent with unlimited computing power. Until now quantum transmission of digital information has been implemented using polarized photon transmission over dark fibers or optical wireless links mainly for random key distribution. In this paper we will use the same idea of uncertainty principle to show the possibility of generating weak photons in the microwave and RF range in such a way that it is impossible to measure the waveform generated by these photons without altering the waveform. The inherent problems of optical quantum systems show the advantages of this technique that includes: less range limitation, lower influence of environment and whether on the link, fast deployment and lower cost of equipments

Published in:

Signal Processing Advances in Wireless Communications, 2006. SPAWC '06. IEEE 7th Workshop on

Date of Conference:

2-5 July 2006