Bandwidth reservation-based VSAT satellite communication system bandwidth distribution method

Abstract

The invention discloses a bandwidth reservation-based very small aperture terminal (VSAT) satellite communication system bandwidth distribution method, and relates to the technical field of satellite communication. In the method, different applications are endowed with different priorities based on the conventional bandwidth reservation-based dynamic bandwidth distribution method, and the high-priority application can occupy the bandwidth section occupied by the low-priority application, vice is not; and in actual distribution, when the bandwidth section corresponding to the application has no enough idle bandwidth, and the bandwidth sections with low priorities are searched in turn from high priorities to low priorities. The method keeps the advantages of the conventional bandwidth reservation-based dynamic bandwidth distribution method such as simple implementation, few channel fragments and high distribution speed, coordinates different QoS (quality of service) demands and application scenes, realizes effective management of channel resources, improves the utilization rate of satellite channel resources in a network environment of multiple service types, meanwhile, simplifies star-earth interaction and reduces the time delay caused by bandwidth distribution.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to a method for bandwidth allocation of a VSAT satellite communication system based on bandwidth reservation. Background technique [0002] Since the 1980s, the VSAT (Very Small Aperture Terminal, Very Small Aperture Terminal) satellite network characterized by small earth stations has developed rapidly. The small station equipment of this VSAT system is small and flexible, easy to install, and can support voice, low-speed random data services, batch data services, images, and various new communication services (such as Internet transmission and compressed video services, etc.), and can access Integrated Services Digital Network (ISDN) has become the nerve center on which many large enterprises, business groups, financial institutions, and news organizations depend. With the rapid development of information technology, VSAT network is still full of strong vitality. ...

AI Technical Summary

Problems solved by technology

The disadvantage is that the satellite link is not fully utilized because the resource allocation is not related to the actual transmitted network data flow

However, in the face of the massive growth of multimedia services, the QoS requirements of various services are different. This algorithm cannot take into account the QoS requirements of different services on the basis of improving the performance of the entire system, and cannot meet the needs of future satellite multimedia network users. different needs

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