As an alternative to Diffie Hellman’s key exchange protocol, physical layer key generation is discussed based on measurements of reciprocal channels. Due to statistically independent noise together with vector quantization, the keys might not be the same. Hence, the contribution discussed key reconciliation possibilities, either introducing guard bands or LDPC Slepian‐Wolf coding. We derive a criterion determining guard bands and the log‐likelihood ratios for LDPC decoding, respectively. The latter is determined by the influence of the quantization, leading to non‐consistent densities. We also showed first LDPC performance results for the binary case. The results were based on a multi‐edge‐type LDPC code design for two channels consisting of the channel measurements and the transmission of syndrome or parities for key reconciliation.
Physical Layer Key Generation using FDD Wireless and Powerline Channels Workshop
ITG Fachgruppe „ Angewandte Informationstheorie” Bremen, 2017.
Sitzung der ITG Fachgruppe »Angewandte Informationstheorie«, Technische Universität München, 2014.
3rd International Workshop on Advances in Communications, Boppard, Germany, 2014.
Physical-Layer Key Generation and Reconciliation Book Chapter
Utschick, Wolfgang (Ed.): pp. 393-430, Springer: Communications in Interference Limited Networks, 2016, ISBN: 978-3-319-22440-4.
Physical-Layer Security Masters Thesis
Jacobs University Bremen, 2013.
Jacobs University Bremen, 2011.
Quantization for Physical Layer Security In Proceeding
IEEE Global Communications Conference (GLOBECOM), Workshop on Trusted Communications with Physical Layer Security, Washington DC, 2016.
International Zürich Seminar on Communications (IZS 2016), Zürich, 2016.
IEEE International Global Communications Conference, San Diego, California, 2015.
10th International ITG Conference on Systems, Communications, and Coding (SCC 2015), Hamburg, Germany, 2015.
IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2014), Florence, Italy, 2014.
9th International ITG Conference on Source and Channel Coding (SCC), Munich, Germany, 2013.
First IEEE International Conference on Communications in China (ICCC 12), Beijing, China, 2012.
IEEE Globecom 2010 Workshop on Heterogeneous, Multi-hop Wireless and Mobile Networks, Miami, Florida, 2010.
Some UEP Concepts in Coding and Physical Transport In Proceeding
2007 IEEE Sarnoff Symposium, Princeton, NJ, USA, 2007.