With the rapid development of wireless networks, the growing number of mobile applications result in massive computation task to be processed. Satellite communication system, with the merits of wide coverage and flexible multiple-link capability, breaks the limitations of terrestrial network and delivers resilient as well as high-speed connectivity across the globe. In the traditional integrated satellite terrestrial network architecture, time and frequency resource allocation is usually not adapt to customized services. To solve the problem, in this paper we propose a double-edge satellite terrestrial network architecture and a more flexible slot resource allocation scheme based on service priority to improve the resource allocation efficiency and decrease service time delay. Performance of the proposed scheme is evaluated on the OPNET platform. Simulation results show that the proposed time slot allocation scheme in the double-edge satellite terrestrial outperforms the traditional one.
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