摘要
基于模型方法和软件仿真方法 ,对一种低轨 /中轨 (LEO/MEO)双层卫星网络进行了性能分析 首先建立了双层卫星网络的广义随机Petri网 (GSPN)模型 ,通过对模型进行分析和合理简化 ,采用SP NP4 0软件进行了网络性能分析 然后 ,将分析的结果与采用OPNET软件对LEO/MEO双层卫星网络模拟的结果进行比较 ,验证了模型分析方法的正确性 。
The performance evaluation on a LEO/MEO satellite network is carried out by model-based analysis and software simulation, respectively. Firstly, the GSPN model of a double-layered satellite network is constructed and simplified, and then used to evaluate the network performance with SPNP4.0 software package. Then, the effectiveness of the results obtained by model-based analysis is verified in comparison with those by network simulation using OPNET, and some results are derived that the performance of double-layered constellation is better than that of single-layered one because processing and waiting delay become the main delay under high traffic condition.
出处
《计算机研究与发展》
EI
CSCD
北大核心
2005年第2期259-265,共7页
Journal of Computer Research and Development
基金
国家"八六三"高技术研究发展计划基金项目 (2 0 0 2AA712 0 3 1)
国家自然科学基金重点项目 (60 3 3 40 2 0
60 3 2 10 0 2 )
