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电子学报  2002 

IP网络传输控制的性能评价标准研究

, PP. 1973-1977

Keywords: 传输控制,综合性能评价标准,服务质量,服务数量,公平性,规格化性能函数

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Abstract:

性能评价标准是进行网络传输控制机制和算法研究的一个非常重要的问题.由于传输控制本身的多目标性,导致了性能评价标准也需要同时考虑多项内容,即需要研究综合性能评价标准.本文通过讨论包括服务质量、服务数量和公平性在内的性能评价指标、性能评价的时间尺度和评价粒度等几个基本问题,针对不同的粒度,分别从有效性和公平性两个方面提出了相应的性能评价标准.在有效性方面,定义了规格化性能函数这一概念,把时延、丢包率等服务质量和服务数量统一在一起进行评价;在公平性方面,利用随机过程均值和方差的关系,以及RajJain公平指数的改进公式进行评价.

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