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Communications Engineering (Master of Science) >>

Praktikum Communications Systems Design (P-CSD)2.5 ECTS
(englische Bezeichnung: Lab Communications Systems Design)
(Prüfungsordnungsmodul: Communications Systems Design)

Modulverantwortliche/r: Georg Fischer
Lehrende: Arslan Ali, Florian Irnstorfer

Startsemester: WS 2022/2023Dauer: 1 SemesterTurnus: jährlich (WS)
Präsenzzeit: 45 Std.Eigenstudium: 30 Std.Sprache: Englisch



Learning based on LabVIEW communications and NI USRP:
• Introduction to USRP including hardware blocks of Tx/Rx chains
• Getting familiar with LabVIEW communications environment and controlling VIs (Panel, diagram, etc.) and fundamentals of LabVIEW programming: data types, arrays, flow control (for/while loop), clusters, case structures, signal sources, sinks, signal processing tools, filters, time/ frequency domain analysis, etc.
• Transmission and reception of analog modulation schemes: AM/DSB-SC and FM
• Implementation of digital modulation schemes: ASK, FSK, BPSK, QPSK, 16-QAM, etc.
• Digital Tx/Rx: symbol mapping, upsampling/downsampling, pulse shaping (rectangular, Gaussian, RRC), matched filtering, pulse alignment, synchronization, and detection
• Phase synchronization, FDM and image rejection algorithm
• Eye diagram analysis: ISI, clock jitter, optimal sampling time, detection threshold
• Power control for over-the-air transmission in sub-6 GHz ISM bands and analysis on fading and multipath propagation effects
• Channel estimation, equalization (decision directed, linear LS, adaptive LMS), modelling: coherence bandwidth and propagation delay

Learning based on MATLAB and USRPs (Communications toolbox and SDR support packages):
• OFDM Tx/Rx with frequency domain equalization (FDE) and synchronization (training sequence and frame detection)
• LTE downlink transmission (MIMO) including system information blocks (SIB) and spectrum analysis including estimation/calibration of carrier frequency offset (CFO)
• Impairments/distortion analysis: ACPR, EVM tool: IQ offset errors, phase noise, PA nonlinearity, etc.

Learning based on GNU Radio and RTL-SDR:
• Introduction to GNU Radio with RF prototyping demonstration
• Spectrum analyzer implementation: RBW, VBW, sweep time, and phase noise
• Small Project/assignment for students

Lernziele und Kompetenzen:

• Can bridge the gap between communications theory, analog/digital baseband, and RF design
• Can develop quick and flexible prototypes for real-time communications systems and standards using SDR solutions
• Can determine the design parameters and assess the interaction between various analog and digital parts
• Can create efficient Tx/Rx programs and signal processing algorithms in LabVIEW, MATLAB, and GNU Radio
• Can implement channel estimation and equalization algorithms in TDD and FDD systems
• Can demonstrate MIMO and OFDM based systems like LTE and beyond
• Can quantify and evaluate system performance using EVM and impairments analysis

Verwendbarkeit des Moduls / Einpassung in den Musterstudienplan:

  1. Advanced Signal Processing & Communications Engineering (Master of Science)
    (Po-Vers. 2021w | TechFak | Communications Engineering (Master of Science) | Gesamtkonto | Technical Mandatory Electives | Communications Systems Design)
Dieses Modul ist daneben auch in den Studienfächern "Communications and Multimedia Engineering (Master of Science)", "Elektrotechnik, Elektronik und Informationstechnik (Master of Science)", "Information and Communication Technology (Master of Science)" verwendbar. Details


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