基于CCSDS高级在轨系统的MPDU复用效率研究  

Research on Multiplexing Efficiency of MPDU Based on CCSDS Advanced Orbiting Systems

作　　者：赵运弢[1,2] 潘成胜[3] 田野 张子敬[2] 毕明雪[2] 

机构地区：[1]南京理工大学控制科学与工程系,南京210094 [2]沈阳理工大学通信与网络工程中心,沈阳110159 [3]大连大学,大连116000

出　　处：《宇航学报》2010年第4期1195-1199,共5页Journal of Astronautics

摘　　要：MPDU包信道复用作为CCSDS两级多路复用机制的第一级,其复用效率直接影响CCSDS高级在轨系统的高效性和有效数据的承载能力。在泊松分布固定包长成帧模型的基础上,提出了高阶剩余函数的概念,并给出了MPDU复用效率递推公式。仿真结果表明,随着阶数的增加,理论与仿真曲线呈逼近趋势,对4阶递推公式最小相对误差可达1.3329%。The MPDU multiplexing was taken as the first phase of the multiplexing mechanism of CCSDS,whose efficiency was bound up with transmission performance and capability of valid data on advanced orbiting systems.Based on model of forming frame with Poisson distribution and invariable packet and slot,the concept of high order of residual function was presented and the derivation for formula of MPDU multiplexing efficiency was given.The simulation results show that the theoretical curves validate the experimental simulation very well with the higher order of residual function.The relative error of 4 orders of residual function was less than 1.3329%.

关 键 词：MPDU CCSDS 多路复用 高阶剩余函数 

分 类 号：TN919[电子电信—通信与信息系统]