关键词: 天地一体化信息网络, 虚拟化, 用户行为仿真, 模型驱动, 高并发

Abstract:

The space-ground integrated information network has a complex structure and diverse protocols. It is necessary to construct a corresponding emulation platform to test and verify various new technologies and solutions. In order to overcome the contradiction between emulation scale, fidelity and computational cost, the distributed emulation method combining virtualization and cloud computing is used to build a space-ground integrated broadband user emulation scenario covering space-based backbone nodes, Ka/Ku communication satellites and ground users. For the characteristics of large number of broadband users, diverse behaviors and high concurrent communicationin the network, a high-concurrency user behavior emulation method based on model-driven and parameter configurability is developed. The experiment proves that the emulation method can realize the emulation scenario of broadband users accessing the satellite network, and the diversified emulation of typical broadband user behavior based on model-driven. The emulation can supports 100,000 concurrent users, which can effectively meet the need for emulation evaluation of space-ground integrated information network.

Key words: space-ground integrated information network, virtualization, user behavior emulation, model-driven, high-concurrency