DIGITAL COMMUNICATIONS II


Code 3.5.3393.7
Semester 7th
Flow D - Telecommunication Systems and Computer Networks
Category Obligatory by selection
Credits 4
Class Hours - Lab Hours 3 - 1
Lecturers Nikolaos Mitrou
Links MyCourses, Course's Website
Web Platform Class 1: BigBlueButton

Description

Lectures

  • Review of basic elements in Digital Communications – Special cases and examples of contemporary digital communication systems [DMT and OFDM modulation, DSL and DVB-T transmission systems]
  • Introduction to Finite Fields
  • Linear Block Codes: Generator matrix, systematic codes, Parity Check Matrix, syndrome, error detection, decoding, error correction, minimum distance of linear codes, Hamming codes]
  • Cyclic codes [definition, algebraic structure, cyclic codes in systematic form, implementation of cyclic codes, decoding of cyclic codes, BCH codes]
  • Reed-Solomon codes [Parameters, generator polynomials and R-S in systematic form, Decoding of R-S codes, Decoding with the Euclidean GCD algorithm, examples]
  • Convolution codes
  • CASE STUDY: Digital TV transmission

LAB exercises

LAB 1. Familiarization with digital modulation in MATLAB – MSK simulation

LAB 2. Simulation of an OFDM system

LAB 3. Finite Field algebra in MATLAB

LAB 4. Reed-Solomon encoding and decoding