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MIMO and PDM-based intersatellite optical link for high-speed data transfer and remote sensing application.

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Summary

This study demonstrates a Polarization Division Multiplexing and Multiple Input Multiple Output (PDM-MIMO) system for high-speed Inter-Satellite Optical Wireless Communication (Is-OWC). The PDM-MIMO system achieves reliable, high-throughput data transmission over extended distances, crucial for satellite networks.

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Area of Science:

  • Space communication technologies
  • Optical wireless communication systems
  • Satellite network infrastructure

Background:

  • Inter-Satellite Optical Wireless Communication (Is-OWC) is critical for global connectivity and space operations.
  • Is-OWC supports applications like global internet, Earth observation, and remote sensing.

Purpose of the Study:

  • To design and evaluate a Polarization Division Multiplexing (PDM) and Multiple Input Multiple Output (MIMO)-based Is-OWC system.
  • To assess the system's performance under various transmission distances, atmospheric turbulence, and pointing errors.

Main Methods:

  • Implementation of a PDM-MIMO Is-OWC system operating at 60 Gbps.
  • Performance testing across different transmission distances (10,000 km and 14,000 km).
  • Evaluation of Bit Error Rate (BER) and signal reception using eye diagrams.

Main Results:

  • A PDM-MIMO system achieved BERs within Forward Error Correction (FEC) limits at 10,000 km.
  • A 4x4 MIMO configuration extended the range to 14,000 km with low BERs.
  • Eye diagrams confirmed successful signal reception, indicating robust performance.

Conclusions:

  • The proposed PDM-MIMO system offers high-capacity and robust performance for space-based communication.
  • The system is suitable for satellite networks requiring reliable, high-throughput, low-latency data transmission.
  • Validated suitability for challenging conditions including turbulence and pointing errors.