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Digital Communications


BBB meeting room


Organisation

Lecturer, Tutor

Lecture: Prof. Dr.-Ing. Volker Kühn

Exercise: Dipl.-Ing. Steffen Steiner

Schedule

Summer Semester

Lectures 3 SWS, Project 2 SWS

Goal

Getting familiar with basic concepts and algorithms for digital data transmission over dispersive channels; exemplary software implementation on programmable hardware

Prerequisites

Fundamentals of Communications

Examination

oral

 

Content

Introduction to digital communications

  • Structure of digital communication systems
  • Performance for AWGN channel
  • Communication channels and symbol rate models
  • Channel estimation

Linear Equalization and Optimal Detection

  • Linear Equalization
  • Decision Feedback Equalization
  • Maximum Likelihood Sequence Estimation and Viterbi-Algorithm
  • Global System for Mobile Communications (GSM, 2nd generation)

OFDM

  • General Multi-Carrier Principle
  • OFDM with guard interval and equalization
  • Synchronization
  • WLAN, LTE (4th generation)
  • Generalized Frequency Division Multiplexing (GFDM)

Spread-Spectrum Systems

  • Principle of Spread Spectrum
  • Spreading sequences (correlation properties)
  • Rake Receiver
  • Multi-User Detection
  • UMTS (3rd generation)


Literatur

  • Kammeyer, K. D.: Nachrichtenübertragung, Teubner-Verlag, 2011
  • Proakis, J. G.: Digital Communications, McGRAW-Hill, 2004
  • Höher, P::Grundlagen der digitalen Informationsübertragung
  • Rappaport, T.: Wireless Communications: Principles and Practice
  • Glover, Grant: Digital Communications
  • Holma, Toskala: WCDMA for UMTS
  • Schulze, Lüders: Theory and Applications of OFDM and CDMA
  • Perahia, Stacey: Next Generation Wireless LANs
  • Dahlman, Parkvall, Sköld: 4G LTE / LTE-Advanced for Mobile Broadband