长相关流量下的高级在轨系统帧复用效率研究

Research on Multiplexing Efficiency of CCSDS Advanced Orbiting Systems Frame Based on Long Range Dependence Traffic

CCSDS高级在轨系统MPDU复用效率是影响空间网络性能的重要因素,传统的短相关泊松流量分布模型不能准确反映成帧过程的真实情况。基于Pareto重尾分布多信源ON-OFF叠加过程,建立了长相关自相似流量下的AOS等时帧生成模型,推导给出了复用效率的长相关关系式,并通过仿真进一步验证了长相关自相似流量下的AOS复用效率同样具有自相似性,且与流量自相似性具有相同的强弱变化趋势。

The MPDU multiplexing efficiency of CCSDS Advanced Orbiting Systems is an important factor which influences the performance of space networks. The traditional short range dependence Poisson model can＇t accurately reflect the real conditions of frame. Based on Pareto heavy tail distribution of multi-source ON-OFF superposition process, the long range dependence self-similarity AOS isochronous frame model was built. And the long range dependence relations were given. Also the simulation result validates the AOS multiplexing efficiency takes on long range dependence, which has the same trends with the self-similarity traffic.