Research on End-to-End QoS Class Mapping in Satellite Network Based on SDN
Aiming at the difficulty of inter-domain cooperation in the environment of multiple satellite network do-mains,and the problem of selecting appropriate QoS classes to implement end-to-end QoS class mapping within each satellite network domain,firstly,based on the software-defined satellite network architecture,this paper proposes an inter-domain communication scheme for SDN satellite networks,and an end-to-end service delivery packet processing method for multiple QoS classes.Then,a control module based on multi-criteria decision-making is pro-posed.The module uses the ELECTRE method to calculate the corresponding weight coefficients of QoS indicators in each satellite network domain through the comprehensive weight method in the ELECTRE method,and uses the ELECTRE method to calculate the net value of each QoS class.Dominance indices are sorted to select the appropriate QoS class for each satellite network domain of the end-to-end path.Finally,compared with the existing end-to-end QoS class mapping schemes,the simulation results show that the method in this paper guarantees the end-to-end de-lay,jitter,packet loss rate and cost in the multi-satellite network domain environment.
Satellite networkSoftware defined networkQuality of serviceQoS mapping
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