Access and Transport Networks
FEKT-BKC-PTSAcad. year: 2019/2020
The subject deals with the evolution of telecommunication networks and their convergence with computer networks. The stress is placed on modern analysis of access and transport networks while considering their diversity and also concurrent features together with the application of analogue and digital modulations. Primary attention is given to the complex usage of an E1 frame by ITU G.703 recommendation. Students obtain a view of the private and public telephony exchanges, they understand the principles of digital switches, of the current signalling system SS7 and of the SIP internet exchange. Out of print will specificity of measuring in converged networks. Basic attention will devoted to higher order digital systems, to protection of transport networks and to quality evaluation.
Learning outcomes of the course unit
Upon course completion, students will be able to:
- differentiate between the relationship of access and transport networks and their facilities solution,
- apply analogue and digital modulations,
- explain the terms sampling, quantization and coding,
- discuss sampling theorem,
- explain the E1frame,
- express the spectrum of sampling signal,
- measure active network elements,
- set SIP exchange and digital transmission equipment,
- take one's bearings in higher order systems
- evaluate the development of converged networks
The course is obligatory, students should be able to:
- demonstrate the principles of circuit switching,
- interpret the principles of packet switching,
- enumerate the possibilities of separating communication channels,
- express the idea of A/D and D/A conversion,
- discuss elemental terms of the signal processing area,
- apply the basic principles and protocols of the Ethernet network.
Students should have the basic knowledge of communication systems, which they obtained in the obligatory courses in their previous study.
Recommended optional programme components
Recommended or required reading
ŠKORPIL, V.: Přístupové a transportní sítě. VUT, Brno 2013.
ŠKORPIL, V., POLÍVKA, M.: Přístupové a transportní sítě, laboratoře. VUT, Brno 2013.
ODOM,W. and HEALY,R. and MEHRA,N. Směrování a přepínání sítí. Computer Press, Brno 2009.
MORREALE, P., TERPLAN, K.: Modern Telecommunications. CRC Press, London 2001.
ŠKORPIL, V., VYCHODIL, P., KAPOUN, V. Metody přenosu a spojování pro integrovanou výuku VUT a VSB-TUO
Planned learning activities and teaching methods
Teaching methods include lectures and practical laboratories. The part of this course is a presentation of results in power point. Course is taking advantage of e-learning (Moodle) system.
Assesment methods and criteria linked to learning outcomes
0-30 points – processing of seven individual tasks
0-70 points - written exam with e-learning support, compulsory part for course completion.
Exam is focused on verifying the orientation of access and transport networks, detailed analysis of digital transmission on frame E1 base, convergence understanding.
Language of instruction
1. Basic concept, telecommunication technologies, parts of communication systems.
2. Standardization organizations, ISO, ITU, ETSI, Forums, RFC documents
3. Time division multiplexing and digital modulations, PCM, ADM, ADPCM and others
4. Encoders and decoders PCM, compandors, compression advantage, A and mí low characteristics
5. Structure of frame and multiframe E1, Recommendation ITU G 703.
6. Access and Transport Networks, definitions, new knowledge of convergence
7. Switching systems, exchanges, digital switching array, signalling, SIP telephone exchange, software equipment
8. Transmitted signal, link codes, synchronization of digital systems
9. Analysis of total distortion, quantizing and limiting distortion, spectrum of sampling signal
10. Measuring in converged systems, BER measuring, delay and jitter measuring, SW analysis
11. Higher order digital systems, SDH multiplexing structure, frame structure, integrating
12. Transport networks protection, quality evaluation
13. Advanced converged networks development
Giving a comprehensive overview of all most important parts of the converged network, which is here comprehended as a tool for transmitting information to a required recipient in required quality. Access network solutions, means of traffic concentration, integration of services, multiple utilization of transmission media. Principles of the computer network in relation to the classical telecommunication network.
Specification of controlled education, way of implementation and compensation for absences
Students of combined study work up seven individual tasks, from of each of tutorial or laboratory exercising one.