Veranstaltung: Physical-Layer Security

Nummer:
141212
Lehrform:
Vorlesung und Übungen
Verantwortlicher:
Prof. Dr.-Ing. Aydin Sezgin
Dozent:
Prof. Dr.-Ing. Aydin Sezgin (ETIT)
Sprache:
Deutsch
SWS:
4
LP:
5
Angeboten im:

Termine im Sommersemester

  • Beginn: Donnerstag den 20.04.2017
  • Vorlesung Donnerstags: ab 14:15 bis 15.45 Uhr im ID 03/471
  • Übung Donnerstags: ab 16:15 bis 17.45 Uhr im ID 03/471

Prüfung

Mündlich

Termin nach Absprache mit dem Dozenten.

Dauer: 30min
Prüfungsanmeldung: FlexNow

Ziele

The students understand the concepts of physical-layer measures to achieve secrecy. Equipped with tools and methods acquired during the lectures, new setups can be investigated.

Inhalt

The broadcast nature of wireless systems makes it more vulnerable to eavesdroppers to extract data from the received signals. The conventional way to achieve confidentiality is by using cryptographic encryption based on keys. The idea behind is that the eavesdropper is assumed to have limited time or computational resources. While this approach has both it advantages and disadvantages, the physical-layer approach can be regarded as a powerful alternative or as an additional level of protection to achieve security in wire­less net­works. A distinct feature of the physical-layer approach is that the eavesdropper is assumed to have unlimited time and resources available. Furthermore, this approach guarantees both reliability and security, which the other approach can not. In this lecture, we will cover the following aspects and setups

  • Part I: Review
  • Entropy, Mutual Information, Differential Entropy
  • Fading channels
  • Capacity of Gaussian channels
  • Medium Access (Centralized and Distributed)
  • Coding on Dirty Paper
  • Beamforming and zero-forcing
  • Deterministic models
  • Interference Alignment
  • Part II: Basics
  • Confidentiality and Encryption
  • Basic Wyner Wiretap Channel
  • Multiple-Antenna Wiretap Channel
  • Part III: Advanced Topics
  • Broadcast channel with side information
  • Secret-Key Agreement: Half-Duplex vs. Full-Duplex
  • Specific Multiuser Wiretap Channels
  • Caching in D2D networks with secure delivery
  • Retrospective Alignment and Jamming
  • Network Coding, Source Coding
  • Cross-Layer Design
  • Practical Projects
  • Medium Access
  • Antenna design and beamforming
  • Jamming
  • Software defined radio based implementations of physical-layer security methods

Voraussetzungen

keine

Empfohlene Vorkenntnisse

  • System Theory
  • Communications Engineering
  • Stochastic Signals

Materialien

Sonstige: