Simulation of Communication Systems: Modeling, Methodology and Techniques
Simulation of Communication Systems: Modeling, Methodology and Techniques
Channel coding as a cryptography enhancer
ICCOM'07 Proceedings of the 11th Conference on 11th WSEAS International Conference on Communications - Volume 11
Using genetic algorithms in software optimization
TELE-INFO'07 Proceedings of the 6th WSEAS Int. Conference on Telecommunications and Informatics
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This paper develops further the idea of use of Soft Input Decryption. The function of Soft Input Decryption is to integrate decryption into the decoding process. In this paper it is shown how Soft Input Decryption can be enhanced using feedback from the channel decoder. In this way, the cooperation between channel coding and cryptography is further develops. The effect of the feedback is explained on an example of the trellis diagram. Like in Soft Input Decryption, also in feedback method is the usage of reliability L-values of SISO channel decoder of great importance. Theoretical analysis, as well as results of computer simulations have been presented and discussed.