Research On Routing Protocol Of Satellite Network

As a new research field, more and more attention has been paid to satellite network by researchers. Currently, the research on routing protocol of satellite network is still in an early stage. Since the particularity of satellite network, we can not copy the routing policy of Internet and mobile network. New routing policy is needed to fit to the satellite communication. So, satellite network protocol has been the important research topic.After the analysis of OSPF routing protocol and the difference between satellite network and terrestrial network, a two-layered satellite network routing protocol SOSPF is proposed in the thesis. A simulation implementation ofSOSPF routing protocol is also presented. Based on the simulation, a performance comparison of SOSPF routing protocol is given by experiment.On the topic of two-layered satellite network routing protocol, a routing algorithm of SOSPF protocol is presented according to characteristic of satellite network at first. Then an optimized strategy of routing algorithm is presented to reduce the link switch ratio. Last, the part of protocol of SOSPF is finished.On the topic of routing protocol simulation, a simulation model of SOSPF routing protocol is implemented in OPNET according to its simulation mechanism. Through simulation experiment and result analysis, it is testified that the routing protocol has good performance. In addition, the optimized strategy of routing algorithm and is applied to the model, with the result of getting less link switch ratio.The result of this paper can be applied to double-layered satellite network, providing routing switch support for data transfer in network layer.