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Communication and Digital modulation systems - 4PMEM4C1

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  • Number of hours

    • Lectures : 9.0
    • Tutorials : 9.0
    • Laboratory works : 6.0
    • Projects : 0
    • Internship : 0
    ECTS : 2.5

Goals

Principles of base-band transmission and digital modulation. Performances : bit error rate, spectral efficiency, application examples.
In line coding, optimal reciever, digital modulations, applications.
Aptitude to analysing system performances in base-band and modulation of a CW carrier.

Contact Yannis LE GUENNEC

Content

Global scheme of digital transmission link
Baseband digital transmission
* Main codes
* Eye diagramme
Optimal Coherent receiver for Additive White Gaussian Noise.
* Matched Filter
* Inter-Symbols Interference (Nyquist criterium)
* Band-limited transmission (cosine filter, minimal bandwidth)
* Performances (spectral efficiency, bit error rate vs signal-to-noise ratio).
Digital modulation of a carrier
* In Phase and Quadrature (I/Q) Modulator / Demodulator.
* Baseband complex equivalent model.
* Modulations (ASK, PSK, QAM, FSK), constellation, power spectrum.
Pulse coded modulations
* Quantification and noise
* Compression
Multiple access
* TDMA,
* FDMA,
* WDM



Prerequisites

Basics on signal processing

Tests

written examination : 2h and BE



Mark exam *2/3 + Mark BE*1/3

Additional Information

Curriculum->Engineering degree->Semester 8

Bibliography

  • Glavieux, M. Joindot. Communications numériques, introduction. Collection pédagogique des télécommunications, Masson, 1996.
  • J.C. Bic, D. Duponteil, J.C. Imbeaux. Eléments de Communications Numériques : transmission sur fréquence porteuse. Dunod, 1986.
  • J. Proakis. Digital Communications. McGraw-Hill, 2000.

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Université Grenoble Alpes