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

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Student: Yilun Zhang Advisor: Prof. Dr.-Ing. Werner Henkel Time frame: Spring 2016   Description: With increasing significance of wireless transmission, physical layer security becomes a challenging topic resulting from the Shannon’s limit. This work explores physical layer security from the aspect of information theory and discusses key generation and reconciliation by Slepian-Wolf coding and low-density

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  Student: Monder Hamruni Advisor: Prof. Dr.-Ing. Werner Henkel Oana Graur Time frame: Spring 2017           Description: The properties of the physical layer in wireless networks are exploited to generate one-time pads which are subsequently used for secure communication between legitimate users.  Previous measurements testbeds relied mostly on RSSI information, since

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Student: Etta Shyti Advisor: Prof. Dr.-Ing. Werner Henkel Time frame: Spring 2016       Description: All the work in this bachelors thesis is focused on investigating channel reciprocity in powerlines, i.e. performing measurements, which determine channel properties as seen from both the transmitting and receiving side, followed by a comparison and analysis of results.

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Student:  Nazia Sarwat Islam Advisor: Prof. Dr.-Ing. Werner Henkel Time frame: Fall 2014     Description: Physical-layer security options can provide robust security measures in a wireless scenario and is a topic of current interest. In this work, we consider a wireless, reciprocal channel between two legitimate users and assume a frequent physical-layer key generation

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Student:  Alexandra Filip Advisor: Prof. Dr.-Ing. Werner Henkel Time frame: Fall 2012         Description: Key reconciliation procedures are needed to correct key differences that can arise as a consequence of independent noise at the two ends of a reciprocal link. We assume a line-of-sight channel and use reconfigurable antenna elements to randomize

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Student:  Alexandra Filip Advisor: Prof. Dr.-Ing. Werner Henkel Time frame: Spring 2012         Description: Physical-layer key generation makes use of the reciprocity of wireless time-division duplex (TDD) channels. Both transmission directions experience the same channel, apart from independent noise and quantization effects. The randomness of a mobile channel ensures a certain regeneration

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Student:  Alexandra Filip Advisor: Prof. Dr.-Ing. Werner Henkel, Dr. Mathias Bode Time frame: Spring 2013         Description: Physical-layer security in wireless communication is a challenging topic needed to allow for secure and reliable information transfer, otherwise subject to eavesdropping. In particular, physical-layer key generation methods use the properties of the channel itself

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