Digital Communications I

Code 3.5.3299.6
Semester 6th
Flow D - Telecommunication Systems and Computer Networks
Category Obligatory (main flow)
Credits 6
Class Hours - Lab Hours 2 - 2
Lecturers Nikolaos Mitrou, Evgenia Adamopoulou (T & R Associates), Konstantina Sakka (T & R Associates)
Links Course's Website



  • Introduction – Digital signal processing in telecommunications – simulation of analog modulation systems (AM, ADS,SSB, FM)
  • Digital FIR filters – design (with different methods: analytic, windowing, equirriple, …) and implementation
  • Optimal detection – Matched filters
  • Spectral characteristics of digital waveforms –Formatting with Nyquist filters
  • Digital modulation techniques: ASK, QAM,PSK, FSK, MSK
  • Channel efficiency – theoretical limits and practical approaches
  • Special cases and examples of contemporary digital communication systems

LAB exercises

LAB 1. Familiarization with MAT and Digital Signal Processing

LAB 2. Design and implementation of digital filters

LAB 3. Matched filters and ASK

LAB 4. ASK with Nyquist formatting

LAB 5. QAM and PSK systems

LAB 6. FSK and MSK