Abstract
Security and error control coding are two crucial aspects of the digital communication systems. The deployment of data transmission systems easy to eavesdrop, such as wireless systems, makes strategic the protection of the data secrecy. This paper presents an encryption scheme based on the dynamic observation of the reciprocal propagation channel between the legitimate nodes. A “session key”, generated from the Complex Impulse Response (CIR) measurements, manages the channel coding system, namely a turbo-code. This scheme allows to jointly perform an error control and dynamic coding in only one step. This scheme allows a dynamic security coding without change of the hardware structure of the transceiver devices.
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