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目前的高级在轨系统(AOS,Advanced Orbiting Systems)多路复用研究主要以仿真为主,很少有文献给出专门的理论分析.针对基于轮询的AOS多路复用包时延进行研究,通过采用排队论中非空竭限量服务的休假排队系统建立模型,并采用循环再生法进行分析,得到了多路复用包时延计算公式,并给出包时延的下限值.仿真结果表明,在包到达率取值分别为1,2,3包/s,在各种不同的下行速率(范围240~330 bit/s)之下,包时延的仿真值曲线均高于理论下限值曲线,从而论证了理论推导的正确性.研究结果可以为工程设计提供一定的参考作用.
At present, the research on multiplexing of Advanced Orbiting Systems (AOS) is mainly based on simulation, and few literatures provide a specific theoretical analysis.A polling based AOS multiplexing packet delay is studied , The model is established by adopting the queuing system of non-exhaustive limited service queuing in queuing theory and the cyclic regeneration method is used to analyze the calculation formula of the multiplexed packet delay, and the lower bound of the packet delay is given. The simulation results show that the packet delay values are all higher than those of the theory at packet arrival rates of 1, 2, 3 packets / s under different downlink rates (range 240 ~ 330 bit / s) Lower limit curve to prove the correctness of the theoretical derivation.The research results can provide certain reference for engineering design.