An Autonomous Iteration-Based Identification of Faulty Links in LEO Satellite Communication Networks

Currently, a lot of studies on network fault management have focused on the terrestrial network, which appears to not easily be applied to satellite networks. An autonomous iteration-based algorithm is proposed to identify faulty links for LEO satellite systems employing intersatellite links (ISL´s). A designed network satellite with management responsibilities collects the routing information of communication itself with other satellites, based on which a fault diagnosis model is introduced. Then the most likely faulty link is identified by using an iteration-based probability method, in conjuction with which an autonomuos localization procedure is described to pinpoint the actual faulty links. At last the performance of the algorithm is evaluated through simulation.