TELECOMMUNICATIONS, selected aspects

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TELECOMMUNICATIONS, selected aspects (96 h)
Responsible lecturer dr eng. Krzysztof WAJDA **
Multimedia in the Internet: servers, databases, services, computing, networking (10 hours of the introductory lecture and 6 hours of laboratories):

  • Digital multimedia compression.
  • Multimedia formats.
  • Video servers.
  • Content-Based audio/image/video retrieval, browsing and interfaces.

Access networks (10 hours of the introductory lecture):

  • Emerging broadband services – an incentive for broadband access networks.
  • Comparison of “classical” and new access techniques.
  • Developing copper and fibre technologies for access networks.
  • Techno-economic evaluation of different access network scenarios
  • compromise of cost vs network capacity (performance).

Broadband networking (15 hours of lecture and 5 hours of laboratories):

  • Motivation for broadband networking.
  • Modern multimedia, multiservice terminals.
  • Introduction to ATM technology, functional architecture, cell format, protocol multiplayer structure.
  • VP, VC switching, motivation, consequences.
  • Traffic management for ATM.
  • Transport of voice traffic in ATM.
  • Transport of video traffic in ATM.
  • ATM protocol in access networks.
  • MPLS concept and its implementation.
  • IP next generation (v6) protocol.
  • Evolution of broadband networking.

Computer Networks with networking tools
(15 hours of the introductory lecture and 5 hours of laboratories):

  1. Introduction
    • what is computer network
    • what it consist of, main reasons for creating and using computer network
    • topology of networks
    • networks protocols and technology (Ethernet, token Ring, FDDI, FR …)
  2. Telecommunication media used in computer networks, parameters
    • types and differentiation of network devices, (routers, bridges, repeaters)
  3. Data transmission in IP layer
    • Types of main network services (connection-oriented and connectionless)
    • Physical addresses and IP addresses, the structure of inter-net (and its representation: Internet)
    • IP address classes, bits and masks
    • Open architecture model for internet network; with data flow between layers
  4. Description of Internet reference model layers
    • Interface layer; protocols ARP, RARP, BOOTP
    • Access algorithms in common link of the network, Ethernet frames
    • Conversion of physical and IP addresses
    • Services in IP protocol, IP datagrams, MTU fragmentation
  5. ICMP protocol
    • Packet transmission in ICMP, types and formats of messages
    • Routing table in multi-layer network
    • Example of inter-net network for Core Network
  6. Routing protocols
    • Descriptions, parameters and features of: RIP, EGP, BGP, IGRP, OSFP
  7. Transport layer in Internet reference model
    • UDP protocol: description and main features
    • TCP protocol: description and main features
  8. Domain Name Server (DNS)
    • Description of service
    • BOOTP protocol
    • Types of hierarchy of networks domains
  9. IP ver 6 protocol
    • Modifications and changes in relation to IPv4
    • Header format
    • Addressing and types of bites in IPv6
    • ICMP v6 protocol, data flow
  10. Internet (2 hours of the introductory lecture and 8 hours of laboratories):
    • basic concept of the world wide computer network,
    • web publishing (HTML markup language),
    • Internet access (dial-up, LAN),
    • web servers (Unix, Windows OS).
  11. Introduction to the cellular systems – (4 hours of lectures and 6 hours of laboratories):
    • different types of the cellular systems,
    • the GSM characteristic,
    • data transmission in GSM system,
    • design process of the cellular network.
  12. Digital Subscriber Line -(5 hours of the introductory lecture):
    • historical review, present state,
    • digitalization of links, voiceband modems and ISDN,
    • DSL: the loop plant,
    • HDSL, ADSL, VDSL,
    • modulation schemes.
  13. Network Security (5 hours of the introductory lecture):
    • an introduction to network security: is that necessary?
    • local security for Unix and Windows systems: physical security, account security, viruses etc.
    • encryption and password security,
    • port scanners, sniffers, firewalls,
    • backups.

    Krzysztof Wajda received his M. Sc. in 1982 and Ph. D. in 1990. During period 1991-1993 he was granted a Monbusho (Japanese Ministry of Education) scholarship in Osaka University and Kyoto University. In 1996 he spent 6 months of sabbatical leave in CNET (France) working on Adaptive Connection Admission Control (CAC) in ATM networks. He was involved in few international projects: COST 242, Copernicus ISMAN, ACTS 038 BBL, TEMPUS JEP N° 0971, IST Vth Framework LION and was granted TEMPUS individual grant IMG-96-PL-2057. He serves also as a reviewer of few journals: Telecommunications Systems, Performance Evaluation, Computer Networks and ISDN Systems and international conferencesMain research interests: traffic management for broadband networks, multimedia services, architecture and implementation of ATM networks, performance evaluations of fast packet networks, internetworking.

    Dr Wajda is the author (or coauthor) of 7 books (6 in Polish, 1 in English) and over 70 technical papers.