Course Introduction to Digital Communications 1

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Responsible: Prof. Dr.-Ing. Harald Elders-Boll

Course

Meets requirements of following modules(MID)

• in active programs
  • Ba ET2012 UT1

Course Organization

Version created 2011-12-02 VID 1 valid from WS 2012/13 valid to

Course identifiers Long name Introduction to Digital Communications 1 CID F07_UT1 CEID (exam identifier)

Contact hours per week (SWS) Lecture 2 Exercise (unsplit) Exercise (split) 2 Lab 1 Project Seminar Tutorial(voluntary)

Total contact hours Lecture 30 Exercise (unsplit) Exercise (split) 30 Lab 15 Project Seminar Tutorial (voluntary)

Max. capacity Exercise (unsplit) Exercise (split) 40 Lab 18 Project 18 Seminar 40

Total effort (hours): 150

Instruction language

• German, 80%
• English, 20%

Study Level

• Undergraduate

Prerequisites

• Basic Matlab skills
• Basic knowlegde of signals and systems

Textbooks, Recommended Reading

• Johnson, Sethares, Klein: "Software Receiver Design", Cambridge University Press, 2011
• Sklar: „Digital Communications“, Prentice Hall, 2001
• Roppel: „Grundlagen der digitalen Kommunikationstechnik“, Hanser 2006
• Proakis: „Digital Communications“, McGraw, 2000

Instructors

• Prof. Dr.-Ing. Harald Elders-Boll

Supporting Scientific Staff

• Dipl.-Ing. Martin Seckler

Transcipt Entry

Introduction to Digital Communications 1

Assessment

Type
oE	normal case (large number of assessments: wE)

Total effort [hours]
oE	10

Frequency: 2-3/year

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Course components

Lecture/Exercise

Objectives

Contents

• Fundamentals of Digital Communication Systems
  • Basic Concepts
    • Elektromagnetic Spectrum
    • Bandwidth
  • General Model for Digital Communication Systems
    • Upconversion at the Transmitter
    • Linear Filters
    • Downconversion at the Receiver
    • Analog Core of A Digital Communication System
    • Sampling at the receiver
    • Pulse Shaping
    • Synchronization
    • Equalization
    • Decisions and Error Measures
    • Example for a Digital Communication System
  • Basic Elements of Digital Communication Systems
    • Oscillators
    • Linear Filters
    • Samplers
    • Static Nonlinearities
    • Adaptation
• Modelling Corruption
  • Interference
  • Noise
    • narrowband
    • wideband
  • Lniear Distortion
    • Multipath Transmission
  • Frequency Shift
    • Doppler Effect
    • Oscillator Inaccuracies
• Baseband Transmission
  • Simplified Blockdiagram for Baseband Transmission
  • Segmentation and Reassambly
  • Digitale Baseband Modulation
    • Bits to Symbols
    • Symbolen to Signals
  • Receive Filtering
    • Matched-Filter: the Optimum Receive Filter
    • Intersymbol Interference
    • Eye Diagrams
    • The first Nyquist-Criterion
  • Frame Synchronization
• Linear Equalization
  • Frequency-selective Channels
  • Least-Squares Linear FIR Equalization
  • Adaptive linear FIR Equalization
    • LMS-Algorithmus
    • Constant-Modulus-Algorithmus

Acquired Skills

• Ability to understand and explain the general structure of communication systems
• Ability to compare the performance of different communication systems
• Ability to transfer knowledge of digital communications systems into practical problem solving
• Ability to simulate digital communication systems with simulation software packages

Additional Component Assessment

Type
fAP	2-3 tests, 20% of final course grade

Contribution to course grade
fFA	2-3 tests, 20% of final course grade

Frequency: 1/Jahr

Lab

Objectives

Acquired Skills

• Ability to analyse and simulate digital communication systems
• Ability to compare different methods for baseband transmission and equalisation

Operational Competences

• Implementation of a digital communicatin system within a simulation tool
• Carry out simulations
• Classify and evaluate simulation results
• Cary out measurements with existing simulation models

Additional Component Assessment

Type
fSC	2 -3 lab experiments (4h each)

Contribution to course grade
fSC	Attestation, prerequisite to course exam

Frequency: 1/Jahr