SkyLinkSimulator

A fast simulator for a LEO satellite network with ISLs/GSLs, buffer/queueing model, and routing strategies

Prerequisites

• Python 3.11 or later
• (Recommended) a virtual environment
• Install dependencies from requirements.txt

python -m venv .venv && source .venv/bin/activate  # Windows: .venv\Scripts ctivate
pip install -r requirements.txt

Data

By default, main.py expects precomputed data under data/.

Generate data:

• Positions: src/calculators/position_calculator.py
• Visibilities: src/calculators/neighbour_calculator.py, src/calculators/gs_neighbour_calculator.py
• Traffic: src/calculators/data_calculator.py
• Atmosphere/Radio: src/calculators/atmospheric_attenuation.py, src/calculators/rician.py

The calculator scripts use CosmicBeats (included in the repo at src/calculators/CosmicBeats/); the configuration is referenced in the scripts (e.g., CosmicBeats/configs/oneweb/config.json).

Quickstart (Simulation)

python main.py   --growth_factor 2   --gsl_failures False   --isl_failures False   --max_time_steps 240   --logging False   --seed 0   --repetitions 1

CLI arguments

• --growth_factor (float): Scales the data generation rate
• --gsl_failures (bool): Simulates GSL failures
• --isl_failures (bool): Simulates ISL failures
• --max_time_steps (int): Number of time steps
• --logging (bool): CSV logging in logging/ and results/
• --seed (int): Reproducibility
• --repetitions (int): Multiple runs per strategy

Results & Visualization

• Logs/CSV: logging/, results/
• Plots: src/visualisation/ (time_plot.py, parameter_plot.py, growth_factors_multiple_runs.py)