Title :
Enhancement of the Encryption Efficiency of Chaotic Communications Based on All-optical Feedback Chaos Generation by Means of Subcarrier Modulation
Author :
Bogris, A. ; Chlouverakis, K.E. ; Argyris, A. ; Syvridis, D.
Author_Institution :
Athens Univ., Athens
Abstract :
In this paper, the encryption efficiency of the chaotic carrier, which is defined as the signal-to-noise ratio (SNR) of the encrypted message after filtering the combined signal of chaos and signal, is considered as the basic measure of the offered security. Hence, the lower the SNR of the filtered signal is, the higher the encryption efficiency of the system that is achieved. For the numerical calculations of this work we have considered a typical semiconductor laser.
Keywords :
amplitude shift keying; chaos generators; chaotic communication; cryptography; filtering theory; optical chaos; optical communication; optical feedback; optical modulation; semiconductor lasers; signal denoising; telecommunication security; SNR; all-optical feedback chaos generation; chaos-shift keying; chaotic communications; encryption efficiency enhancement; semiconductor laser; signal filtering; signal-to-noise ratio; subcarrier modulation; Bit rate; Chaotic communication; Cryptography; Decoding; Frequency; Laser feedback; Optical filters; Power capacitors; Security; Semiconductor lasers;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4387008
