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Rethinking LEO Mega-Constellation Routing to Provide Fast Internet Access Services
Zijian Yang1,2, Feng Tian1, Jifeng Jin1,2
1Innovation Academy for Microsatellites of CAS, Shanghai 201203, China.
Sensors (Basel, Switzerland)
|March 30, 2023
Summary
A new routing algorithm, Internet Fast Access Routing (IFAR), enhances low Earth orbit (LEO) satellite internet. IFAR improves data routing efficiency and speed for better space-based internet access.
Area of Science:
- Space Technology
- Computer Science
- Telecommunications Engineering
Background:
- Low Earth orbit (LEO) satellite networks offer a promising solution for global internet access, aiming to bridge the digital divide.
- Growing LEO constellations present significant routing algorithm design challenges for efficient space-based internet services.
- Current routing methods struggle to keep pace with the increasing scale and complexity of LEO networks.
Purpose of the Study:
- To introduce a novel routing algorithm, Internet Fast Access Routing (IFAR), designed to accelerate internet access for users via LEO satellite networks.
- To address the routing challenges posed by large-scale LEO constellations.
- To improve the overall quality and efficiency of space-based internet services.
Main Methods:
- Developed a formal model to compute minimum hops and forwarding directions between satellites in a Walker-Delta constellation.
- Formulated a linear programming approach to optimize satellite-to-ground visible satellite matching.
- Implemented a data forwarding strategy where satellites transmit data only to relevant visible ground satellites.
Main Results:
- Extensive simulations demonstrated the effectiveness of the IFAR algorithm.
- IFAR showed significant potential in enhancing routing capabilities within LEO satellite networks.
- The algorithm contributes to improved data transmission efficiency and reduced latency.
Conclusions:
- The proposed IFAR algorithm offers a viable solution for optimizing routing in large-scale LEO satellite internet systems.
- IFAR can enhance the performance and reliability of space-based internet access.
- This research paves the way for more efficient and faster internet connectivity through advanced satellite networks.
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