卫星终端突发性业务模型与排队性能分析

发布时间：2018-05-01 04:47

本文选题：应急通信 + 突发性　；参考：《计算机应用》2014年04期

【摘要】：随着卫星网络在应急通信中的应用,卫星终端业务的种类不断增加,业务流量可瞬间增大,具有明显的突发性,终端上的数据流量数据呈现出自相似性。利用时间间隔服从重尾分布的ON/OFF叠加模型产生卫星终端的自相似业务流量,并讨论了自相似业务流量输入对卫星终端的丢包率、时延和时延抖动的影响以及对有效带宽的需求。通过仿真,得出了网络终端业务丢包率、时延、时延抖动与系统缓存之间的关系,在此基础上,提出了减少时延、降低丢包率的思路,在带宽和缓存受限的情况下,为信息的高效传输提供了理论依据。
[Abstract]:With the application of satellite network in emergency communication, the types of satellite terminal services are increasing, and the traffic can be increased in an instant. The self-similar traffic of satellite terminal is generated by time interval service from the heavy-tailed ON/OFF superposition model. The effects of self-similar traffic input on the packet loss rate, delay and delay jitter of satellite terminal and the requirement of effective bandwidth are discussed. Through simulation, the relationship between packet loss rate, delay, delay jitter and system cache of network terminal services is obtained. On this basis, the idea of reducing delay and packet loss rate is proposed. It provides a theoretical basis for the efficient transmission of information.
【作者单位】：大连大学信息工程学院;大连大学通信与网络重点实验室;
【基金】：国家863计划项目(2012AAXX) 辽宁省教育厅一般项目(L2013461)
【分类号】：TN927.2

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