Feedback in Joint Channel Coding and Cryptography
Konferenz: SCC'08 - 7th International ITG Conference on Source and Channel Coding
14.01.2008 - 16.01.2008 in Ulm, Germany
Seiten: 6Sprache: EnglischTyp: PDFPersönliche VDE-Mitglieder erhalten auf diesen Artikel 10% Rabatt
Ruland, Christoph; Živic, Nataša (Institute for Data Communications Systems, University of Siegen, Germany)
This paper presents further research based on the idea of Soft Input Decryption (SID). The approach, which integrates decryption into the decoding process, is now enhanced by feedback from the decryptor to the channel decoder, which leads to an iterative application of Soft input Decryption. The enhanced coding gain of the subsequent channel decoding can be exploited by longer Soft Input Decryption blocks or results in reduction of the BER of the final output. Results of analytical calculations of BER as well as simulations represent the coding gains.