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arXiv 1304.3258cs.NI
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主动队列管理下反馈函数对时空优先级QoS的影响

Effect of the Feedback Function on the QoS in a Time Space Priority with Active Queue Management

Mohamed Hanini, Said El Kafhali, Abdelkrim Haqtq, Amine Berqta

摘要:

主动队列管理(AQM)的基本思想是感知网络中的拥塞程度,并通知数据包源,以便它们降低发送速率。文献中对主动队列管理机制进行了大量的研究。但是,在具有不同QoS要求的不同类型的分组共享同一链路的DiffServ架构的上下文中,没有使用这些方法。在本文中,我们研究了一种访问控制机制的RT和NRT数据包到达一个缓冲区实现在一个终端用户在HSDPA。该机制使用阈值来管理对缓存的访问,并赋予RT数据包优先访问权。为了控制缓冲器中NRT分组的到达速率,使用主动队列管理。我们研究了反馈函数对两类数据包的QoS参数的影响,给出了数学描述和解析结果,数值结果表明所提出的反馈函数对系统中的NRT数据包具有更高的QoS.

英文摘要:

The basic idea behind an active queue management (AQM) is to sense the congestion level within the network and inform the packet sources about, so that they reduce their sending rate. In literature a lot off mechanisms of AQM are studied. But there are not used in the context of the DiffServ architecture where different types of packet with different requirements of QoS share the same link. In this paper, we study an access control mechanism for RT and NRT packets arriving in a buffer implemented at an end user in HSDPA. The mechanism uses thresholds to mange access in the buffer and gives access priority to RT packets. In order to control the arrival rate of the NRT packets in the buffer an active queue management is used. We study the effect of the feedback function on the QoS parameters for both kinds of packets .Mathematical description and analytical results are given, and numerical results show that the proposed function achieves higher QoS for the NRT packets in the system.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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