Why Simulate Space Systems?

Accelerate innovation, validate decisions, and explore complex satellite and 5G TN/NTN scenarios – from concept to orbit – using system-level simulation and digital twins.

Speed Up Innovation

Move faster from concept to deployment through simulation-driven iteration.

Explore Before Launch

Validate satellite and network performance before committing to hardware or launch.

Design Future 5G TN/NTN

Develop reliable next-generation 5G NTN and hybrid TN/NTN systems.

Understand System Behavior Before Deployment

The space landscape is evolving rapidly. Over ten thousand satellites are already in orbit, with thousands more planned. At the same time, non-terrestrial networks (NTN) are integrating satellite and terrestrial systems to extend global connectivity.

This growing complexity makes system-level understanding essential – both before deployment and throughout operational life. Simulation provides deep insight into system behavior, interactions, and coexistence across satellite constellations, terrestrial networks, and hybrid TN/NTN architectures.

Line chart showing the increasing number of satellites in orbit from 2020 to 2030

Why Is Simulation Essential for Space System Design?

System-level simulation uses digital models to analyze and optimize space systems across their lifecycle – from early design to post-launch operation.

Simulation is critical in the space domain due to:

High system complexity
Spacecraft, ground segments, user terminals, and environments must work together.
Significant technical and operational risk
Issues discovered late are costly to correct.
High development and launch costs
Early validation reduces expensive redesigns.
Long development cycles
Simulation enables confident decisions, iteration, and evaluation of alternative technologies earlier

Explore Solutions Cost-Effectively

Accelerate Technology Development

Test new technologies, features, and architectures faster than with physical trials.

Optimize System Performance

Gain deep insight into system behavior to optimize performance before and after deployment.

Reduce Development Costs

Evaluate realistic scenarios without the cost and complexity of field trials or launches.

Test Without Limits

Run countless simulations across different parameters, conditions, and scenarios to identify issues early.

From Concept to Orbit

Simulation supports continuous optimization across the full system lifecycle, from early R&D to refinement during real-world operation.

After deployment, system-level simulation enables you to:

Evaluate the need for additional satellites
Adapt to evolving standards and specifications
Adjust to changing use cases, user demands, terminals, and gateway locations
Optimize systems using real-world operational data
Analyze real-world issues safely and systematically

With Simulation

Without Simulation

✓ Run unlimited virtual simulations – faster and more cost-effectively.

✓ Identify and resolve issues early before committing to expensive hardware.

✓ Explore new features and technologies, such as hybrid networks and beam hopping.

✓ Analyze complex system behavior under realistic conditions.

− Physical testing is expensive, slow, and limited.

− Issues may be discovered too late to fix cost-effectively.

− Development cycles are longer.

− Complex space and network scenarios are difficult to reproduce in real-world settings.

What Can You Do with Simulation?

Design and optimize satellite constellations

Analyze and optimize LEO, MEO, and GEO satellite constellations for coverage, capacity, and performance.
Build space-based connectivity

Develop reliable 5G NTN and hybrid TN/NTN networks to extend global coverage.
Improve sustainability

Reduce physical prototypes, optimize resource allocation, and improve energy efficiency across the system lifecycle.
Compare design choices

Evaluate alternative system designs, technologies, and deployment strategies early.

Analyze geospatial relationships in space

Evaluate effects such as mutual visibility, coverage and interference zones, and interactions between satellites, gateways, and users.
Evaluate new features and technologies

Assess 5G NR-NTN performance for NGSO constellations and analyze advanced features such as beam hopping and dynamic resource allocation.
Analyze coexistence and interference

Study coexistence between satellite systems and between satellite and terrestrial networks.
Test resilience

Explore how systems behave as they scale, adapt to change, or operate under degraded conditions.