A Fault Diagnosis Method in Satellite Networks

Satellite network is a time-varying network, its network topology changed periodically. The common network fault diagnosis models and methods are not suitable to it. This paper is based three levels management architecture. The central management station manages the sub-stations and satellites, the sub-stations manage the satellite agents. When satellite network ruuning, if the satellite could not respond to the network management demands, the intra-domain cooperation or inter-domain cooperation would be activated. The suspectable fault satellite could be diagnosed through cooperation among the fault diagnosis agents in the satellite and the diagnosis task are disassembled. The simulation results shows that in the circumstance of the low faulty frequency, the new method put forward in this paper could be effectively used in satellite network with short cooperative time and low throughput.