Aerospace Telecommunication Systems
Objectives
At the end of this curricular unit, students will have acquired the knowledge, skills and competences that allow them to:
- Knowledge of the Network layer to build meshed networks
- Knowledge of the most popular routing algorithms.
- Knowledge of the congestion control algorithms used in the most popular Transport layer protocols.
- Highlights on Software Defined Networks.
- Ability to implement parts of the system.
- Knowledge of basic concepts behind digital modulations, including transmitter and receiver design, and corresponding performance evaluation
- Knowledge of channel coding concepts
General characterization
Code
13160
Credits
6.0
Responsible teacher
Luís Filipe Lourenço Bernardo, Paulo da Costa Luís da Fonseca Pinto
Hours
Weekly - 4
Total - 56
Teaching language
Português
Prerequisites
In the subpart of Communications students must be comfortable with the Fourier analysis (Fourier transforms, convolutions, filtering, power spectral density) and digital modulations (power spectral density and band of the transmitted signals, sender, receiver, error probability).
In the subpart of Network students must be comfortable on the general use of the electromagnetic spectrum, behavior of the waves in the different frequencies, reference models (OSI and TCP/IP), Data Link Layer algorithms (error and flow control) and sublayer medium access control (dynamic behavior).
The knowledge of at least one programming language (amongst C, C++, or JAVA) is assumed
Bibliography
“Satellite Communications Systems – Systems, Techniques and Technology”, Gérard Maral, Michel Bousquet, Zhili Sun, 6th Ed., Wiley, 2020
“Non-Geostationary Satellite Communications Systems”, Edited by Eva Lagunas, Symeon Chatzinotas, Kang An and Bassel F. Beidas, The Institution of Engineering and Technology, 2022
“Micro Air Vehicle Link (MAVLink) in a Nutshell: A Survey”, Anis Koubâa, Azza Allouch, Maram Alajlan, Yasir Javed, Abdelfettah Belghith, Mohamed Khalgui, Early Access article
"Digital Satellite Communications", de Giovanni E. Corazza, edição Springer 2007
“Transmission Techniques for Emergent Multicast and Broadcast Systems”, M. Silva et al. CRC, 2010
“Computer Networks”, 5th Ed., A. Tanenbaum & D. Wetherall, Prentice Hall, 2011
Class slides
Teaching method
The curricular unit has a theoretical component of 2 hours/week of theoretic-practical classes and a practical component of 2 hours/week. Basic concepts and techniques are explained in theoretic-practical classes. Students have three assignments in the practical component. The last two will be assessed.
Evaluation method
The course assessment consists of individual defense of the two laboratory assignments (coursework). The weight of the Communications assignment is 40%. The weight of the Network assignment is 60%. Students must be approved in each of the assignments.
Subject matter
Introduction
Introduction to the Telecommunication Courses in the Master Degree
Basic Concepts and Challenges
Useful Orbits for Satellite Communication
Non-geostationary orbit systems introduction and challenge identification
Spectrum regulation for non-geostationary orbit satellite systems
Satellite Networks
Network Reference Models and Protocols
Reference Architecture for Satellite Networks
Connectivity Through Intersatellite Links (ISLs)
Satellite Broadcast Networks
Broadband Satellite Networks
Part I: Data Communication
Channel characteristics
Modulations (single-carrier, OFDM, SC-FDE)
Signal constellations, BER and PER performance
Multi-antenna systems (beamforming, diversity)
Part II: Network
Network Layer
Quality of Service
Reliability and Availability of Satellite Networks
The IP protocol
Traffic Engineering
Transport Layer: Basic Concepts
Transport Layer: UDP, TCP, and QUIC
UAV Networks