Stable Hierarchical Routing for Operational LEO Networks
Yuanjie Li, Lixin Liu, Hewu Li, Wei Liu, Yimei Chen, Wei Zhao, Jianping Wu, Qian Wu, Jun Liu, Zeqi Lai
Abstract
Low Earth Orbit (LEO) satellite mega-constellations promise ubiquitous network services to "unconnected" users. But their upcoming global routing for Earth will be unstable due to exhaustive topology updates between satellites and Earth, inside an orbital shell, and across heterogeneous orbital shells. In real LEO networks, these multi-dimensional dynamics are interleaved and complicated by chaotic orbital maneuvers and random failures. They are less predictable than most satellite routing proposals expect and threaten these proposals' availability, efficiency, or resiliency at scale.
Topics & Concepts
ConstellationSatellite constellationComputer scienceRouting (electronic design automation)SatelliteComputer networkTopology (electrical circuits)Distributed computingNetwork topologyChaoticLow earth orbitScale (ratio)Routing protocolAerospace engineeringGeographyPhysicsEngineeringAstronomyArtificial intelligenceElectrical engineeringCartographySatellite Communication SystemsOpportunistic and Delay-Tolerant NetworksInterconnection Networks and Systems