C-DReAM


laptop with satellite constellation simulation

C-DReAM is a Python implemented simulator with the capability to simulate various sized NGSO and GSO satellite constellations. It’s a link budget / capacity level simulator that operates on a configurable time resolution.

 With C-DReAM, you can evaluate satellite system capacity, optimize constellation parameters, analyze the coexistence of satellite and terrestrial systems – and more.

C-DReAM is highly configurable, so it allows customer and project specific modifications.

Design satellite constellations and optimize parameters

Perform geospatial and coverage analysis

Analyze the coexistence of satellite and terrestrial systems


USE CASES

  • Design LEO, MEO and GEO constellations

    • E.g. number of satellites, satellite orbits, inclination, altitude.

    • Resource allocation algorithm design, optimization, and testing.

    • Link budget analysis e.g. with different power, frequency range/band and antenna/beam assumptions.

    • Satellite system capacity evaluation with different design assumptions, such as number of satellites, and terminal deployment / traffic demand.

    • Evaluate 5G NR-NTN usability for NGSO satellite constellation systems.
  • Perform coverage and geospatial analysis

    • E.g. hyperspectral camera and SAR satellite constellations

    • Thermal, radiation and energy analyses assisted with orbit simulations

    • Calculate spatial relationships between non-terrestrial and terrestrial objects 
  • Analyze interference and coexistence

    • E.g. between satellite systems or between satellite and terrestrial systems
Satellite constellation simulated
Satellite flying over Italy

See how C-DReAM helped research future technologies in these projects

digital blue waves with black background

Forsway: Comparison project of DVB-S2X/RCS2 and 5G NR-NTN technologies

a child’s head with a glowing brain illustration symbolizing artificial intelligence

EAGER: Researching future 5G-Advanced and 6G NTN technologies

UAV flying in the air over fields and roads

UAV-3S: Exploring possibilities of using SatCom systems for UAV terminals


FEATURES

Multi-Orbit Satellites

  • Configurable constellations
  • TLE files
  • Trace files

Beams

  • Configurable beam patterns
  • Quasi-Earth-Fixed (QEF) or Earth-Moving (EM) beams

Bandwidths and resolution

  • Highly configurable

Frequency band

For example:

  • FR1/S-band
  • FR2/Ka-band

Air interface

  • 5G NR-NTN (IoT-NTN)
  • DVB-S2X/RCS

Payload resources

  • Transmission power
  • Frequency band/split
  • Time resources

RRM

  • API for different resource allocation algorithms

Various frequency reuse schemes

For example:

  • FRF-1
  • FRF-3

Key Statistics

For example:

  • Number of visible satellites
  • C, I, SNR, SINR
  • Throughput, load, capacity

UEs/terminals

  • Many ways of inputting terminals (locations)
  • Traffic demand (kbps)
  • Handheld (omni-directional) / VSAT terminals

Want to optimize satellite systems through simulation?


Contact us