PhySec
Organization
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News:
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The organization will happen in our OLAT course.
Also the KIS entry is now online.
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Lecture:
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Tuesday from 14:00 - 15:30 in room 46-267
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Exercise:
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Thursday from 14:00 - 15:30 in room 46-110
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Exam:
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TBA
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Contact:
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Dr.-Ing. Eric Jedermann
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Content
The module covers security mechanisms at the physical layer of modern communication systems, combining signal processing fundamentals with current research topics in physical layer security.
Part 1: Fundamentals of the Physical Layer (approx. 8 weeks)
This part introduces the technical foundations of digital communication systems, accompanied by exercises that provide hands-on experience in signal processing and signal analysis:
- Physical-layer vs. transport-layer security; digital vs. analog and wired vs. wireless communication
- Signal fundamentals: time and frequency domain, sampling rate, aliasing
- Software Defined Radio (SDR), GNU Radio, baseband and passband models
- Time and frequency synchronization, filtering, bandwidth vs. data rate
- Spectral efficiency, noise, SNR, and bit error rate
- Coding, error detection, and error-correcting codes
- Modulation, differential modulation, and spread spectrum techniques
- Design of digital communication systems and interaction between physical and link layer
Part 2: Physical Layer Security (approx. 4 weeks)
This part focuses on the analysis and discussion of current scientific literature on attacks and defense mechanisms at the physical layer:
- Authenticity and integrity: device fingerprinting, time-based fingerprints (e.g., TDOA)
- Confidentiality: channel-based security (secrecy capacity), direct-sequence spread spectrum
- Availability: jamming, adaptive code rates, frequency- and direct-sequence spread spectrum
- Location privacy: location leakage and protection mechanisms
- (Optional) Access control using distance estimation techniques (distance bounding)