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兵工学报  2013 

高服务质量两级复用算法研究

DOI: 10.3969/j.issn.1000-1093.2013.12.011, PP. 1562-1568

Keywords: 〖JP〗航空、航天科学技术其他学科,空间数据系统,两级复用,Poisson过程,时延,吞吐量〖JP〗

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Abstract:

?针对空间数据系统特点和性能需求,对高级在轨系统(AOS)两级复用算法进行了研究。提出了根据包长和到达率等参数选取最优化包复用效率的时间,作为包信道复用时间上限的包信道复用算法,与根据数据实时性、帧长度、到达率自适应选择调度时隙长度和时隙数的虚拟信道(VC)复用算法,并分别从复用时延、复用效率、丢失率和吞吐量等方面进行了仿真。研究结果表明:新两级复用算法能够有效地限制处理时延,降低丢包率和丢帧率,提高复用效率和吞吐量,满足未来空间数据系统低时延和高吞吐量等服务质量(QoS)需求。

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