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Engenharia Electrotécnica e de Computadores

Telecommunications and data networks

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Publication in the Diário da República: Despacho n.º 7795/2021 - 09/08/2021

6 ECTS; 2º Ano, 2º Semestre, 28,0 T + 42,0 PL , Cód. 911249.

- Gabriel Pereira Pires

Not applicable.

At the end of the course students should be able to understand the fundamental principles of analogue-digital communication; and understand network architectures, configure switching and routing equipment in Ethernet LANs

1 - Introduction to telecommunications

2 - Continuous carrier modulation techniques:
- Transmission of analog signals with linear modulation (AM and DSB);
- Data transmission with continuous carrier: ASK,PSK,FSK,QAM.

3 - Transmission of radio waves:
- Thermal noise, signal-to-noise ratio, amplifier and noise factor;
- The Decibel and derived units;
- Basic principles of propagation and antennas;
- Losses in free space and power budget.

4 - Analog-to-digital conversion:
- Sampling theorem;
- Pulse Code Modulation (PCM);
- Differential PCM modulation and Delta modulation.

5 - Principles of digital transmission and characterization of wired physical transmission media:
- Non-differential and differential transmission;
- Bit synchronization and error detection;
- Line coding;
- Characterization of copper and fiber optic cables and cabling analysis parameters in the context of structured cabling.

6 - Introduction to data networks:
- Layer architectures: OSI model and TCP/IP architecture

7 - Network layer protocols
- IPv4 and ICMP;
- IPv4 addressing;
- Routing protocols: RIP.

8 - Ethernet Technologies
- Medium access control methods: CSMA/CD, CSMA/CA;
- ARP protocol;
- Switching protocols: IEEE 802.1d, 802.1p, 802.1q.

Evaluation Methodology
Written exam in one of the Assessment periods (60%) and laboratory work (40%). The evaluation method is the same for all evaluation periods. Approval in the course requires a minimum classification of 40% in the written exam and a minimum classification of 50% in laboratory work. The minimum grade to pass is 10 out of 20.

- Lathi, B. (1998). Modern Digital and Analog Communication Systems. Oxford University Press: Oxford University Press
- Forouzan, B. (2006). Data Communications Networking. -: McGraw-Hill Science
- Véstias, M. (2009). Redes Cisco para Profissionais. Lisboa: FCA - Editora Informática

Teaching Method
Lectures, Problem solving classes, Laboratory classes;

Software used in class
Matlab/Simulink, LT-Spice, Cisco Packet Tracer, Wireshark




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