Overall objectives:

0 - With this course it is intended that students acquire knowledge related to telecommunications systems. In this sense, the objectives of the Telecommunications Systems course are centered:
1 - In understanding the basic principles that guide the transmission of information in digital format, namely the concepts of: clock synchronism, the resolution of problems related to the occurrence of jitter in the transmission lines, and slips in the multiplexing and switching equipment interconnected by transmission lines, and the formation of frames and multi-frames for the transport of information in digital format
2 - In the data transport networks, such as: PDH, SDH and OTN.
3 - Techniques for controlling access to the transmission medium, based on the study of the technologies of local access networks, namely wireless local area networks (WLANs) and cellular networks.

Syllabus:

1 - Introduction: + Introduction   - Concept: telecommunications systems   - Telecommunications standardization   - Telecommunications branches   - Public telecommunications networks + Network architecture   - Network plans   - Network layers   - Network hierarchies + Service networks   - Public switched telephone network   - Public data networks   - Hybrid networks: fiber and coax   - 21st century networks
2 - Basic Principles of Digital Transport: + Timing Aspects in the Transport Networks   - Synchronization in telecommunications networks   - Synchronization levels   - Synchronization aspects   - Synchronization of network elements   - Jitter   - Jitter control with elastic memory   - Occurrence of synchronization slips   - Slip control by positive justification + Basic principles of digital multiplexing   - Digital multiplexing   - Forms of interposition   - Frame alignment   - Forms of justification   - Supervision. + Primary transmission systems   - E1 transmission system   - DS1 transmission system
3 - Transport Network + Plesiochronous digital hierarchy (PDH)  - Basic principles  - PDH limitations  - PDH versions  - Characteristics of the European system + SDH: synchronous digital hierarchy  - Advantages and limitations of the PDH hierarchy  - Basic principles; transmission speeds  - Network elements and topologies  - Frame formation  - Modular substructures; multiplexing structure  - Function of containers; path header; alignment of virtual containers  - Transport of the tributaries of the PDH hierarchy in the STM-1  - Structure of the pointers  - Transport of tributary E1 (2,048 kbps)  - Continuous concatenation of lower and higher order  - Automatic protection in SDH networks  - Operation and maintenance  - Application of SDH systems in the transport network  - SDH transport network + New Generation SDH  - Inefficiencies of conventional SDH  - Key technologies of the new generation SDH  - Transport of IP packets over SDH / WDM  - GFP Protocol  - Virtual concatenation (VCAT)  - LCAS (Link Capacity Adjustment Scheme)  - NG-SDH Network Elements  - MSPP: Multiservice Provisioning Platform  - MSSP: Multiservice Switching Platform
4 - Media Access Control: + Multiple access to the transmission medium + Random access protocols   - ALOHA   - Slotted ALOHA   - Carrier Sense Multiple Access (CSMA)   - CSMA with collision detection (CSMA / CD)   - Controlled Access Protocols: resource reservation, polling schemes, polling in IEEE 802.11 + Access to the media on Wireless Local Area Networks   - Hidden terminals; exposed; ?Near? and ?distant?   - MACA (Multiple Access with Collision Avoidance) Protocol   - MACA variant: DFWMAC on IEEE802.11   - CSMA with Collision Avoidance (CSMA / CA) + Application: wireless local area networks - WLANs   - Properties and requirements of wireless local area networks (WLANs)   - IEEE 802.11   - Classic architecture of a network infrastructure   - Topologies: network infrastructure, ad-hoc network mode, mesh network   - Protocol layer model: functions
5 - Mobile networks: + GSM  - Motivation  - Standardization and evolution  - Types of services and versions  - Network architecture: RSS, NSS, OSS  - Protocol stack: radio, logic link, network (RR, MM, CM)  - Addresses and Identifiers  - Air interface: basic GSM parameterization (900 MHz), physical and logical channels  - TDMA / FDMA plot: time slots in UL and DL, plot organization, timing advance  - Logical traffic and signaling channels  - Control channels: broadcast mode, control in common and dedicated mode  - Hierarchy of frames  - Radio transmission aspects: slow jumps in frequency, voice coding, GMSK modulation (Gaussian Minimum Shift Keying), interlacing  - GSM operating modes: call location, call to the terminal (Mobile Terminated Call), call originated at the terminal (Mobile Originated Call), signaling messages, location update (Location Update), Handover, authentication / encryption + GPRS  - Network architecture and functions  - Services offered  - Mobility and session management  - Air interface  - Architecture and protocols  - Example of interconnection between GPRS and IP networks

Literature/Sources:

John C. Bellamy , 2000 , Digital Telephony , Wiley
Roger L. Freeman , 2013 , Fundamentals of Telecommunications , Wiley
Roger L. Freeman , 2004 , Telecommunication System Engineering , Wiley
João Pires , Sistemas e Redes de Telecomunicações , IST

Assesssment methods and criteria:

Classification Type: Quantitativa (0-20)

Evaluation Methodology:
Expositive lectures Problem solving classes Simulations Group or team work Presentations Evaluation: 1st Test 30% 1st Project 20% 2nd Test 30% 2nd Project 20%