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ELA-023
Telecommunications, transmissions - 2020

Satellite-based internet and multimedia

DVB standards and their implementation

OBJECTIVE :

Telecommunication satellites offer a unique capability to ensure users' connectivity to the Internet wherever terrestrial infrastructure is either insufficient or impossible to deploy. This service is based on specific techniques to provide both high speeds, good availability and a user experience as close as possible to that provided by terrestrial networks. This course focuses on access techniques for multimedia satellite communications systems (radio resource management, waveform adaptability to propagation conditions, multiple access, dynamic capacity allocation procedures) and integration into the Internet (adaptation of TCP/IP protocols, differentiated quality of service). Particular emphasis will be on geostationary satellite systems operating at high frequencies (above 20 GHz).

 

COURSE DURATION AND TIMETABLE :

The training program is scheduled over 5 days (30.5 hours) and is composed of:

  • 21 hours of presentations
  • 9.5 hours of practical work in the computer room

GENERAL APPROACH :

This training session is for engineers who wish to acquire knowledge about the scaling of satellite systems for Internet and multimedia applications. Emphasis will be on access techniques, taking into account the adaptive techniques imposed on the physical link by high frequencies.The influence on the quality of service offered by the higher layer protocols (typically IP) will be analyzed. Systems derived from the DVB standards of ETSI (DVB-S, S2, and RCS2) will be used to introduce and illustrate the various access techniques. The practical work sessions use the OMNET++ modeling and simulation tool.

PREREQUISITE :

Course level : Advanced

Knowledge of space systems is desirable but not essential.

A basic knowledge of telecommunications networks is desirable.

COURSE DIRECTOR(S) :

José RADZIK:

“Associate professor at ISAE-SUPAERO”

Research activity in the domain of telecommunication satellites with a focus on networking aspects.

In charge of satellite telecommunications and navigation teaching programs for SUPAERO engineer syllabus and ISAE specialized masters.

CONTENT :

  • Introduction
    • Systems architecture
    • Access methods
    • Applications
  • The physical layer
    • Channel modulation and coding, band/power compromise
    • Link budget and its fundamental parameters
    • Introduction to anti-weakening techniques (FMT: Fade Mitigation Techniques)
  • Propagation and Fade Mitigation Techniques (FMT)
    • High frequencies effects (Ka/Q/V bands)
    • Methods for measuring degradation
    • ACM (Adaptive Coding and Modulation) decision loop
  • Access methods and resource management
    • The DVB-S2 forward link, access management on a high speed multiplex, QoS/ACM interface
    • The DVB-RCS2 return link, MF-TDMA access management, resource management modes, evolutions related to the introduction of the ACM (RCS2)
    • Architectures with payloads or transparent
    • Multi-layer approach
  • Practical works
    • The forward link. DVB-S2 system, compromise between access time/efficiency of channel use
    • The DVB-RCS2 return link, resource management
    • The DVB-RCS2 return link, differentiated service quality, joint QoS/ACM management

 

 

WHEN AND WHERE :

Scheduled in French:

TOULOUSE: NEXT DATE - PLEASE CONSULT US

 

For the English realization, please, consult us.

COURSE FEES :

€1,970 excluding tax (20% VAT)

See general terms

 

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