计算机科学 ›› 2011, Vol. 38 ›› Issue (6): 64-69.
• 计算机网络与信息安全 • 上一篇 下一篇
张南，肖扬
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ZHANG Nan,XIAO Yang
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摘要： IEEE 802. lle EDCA机制允许采用CFB(竟争空闲突发)模式，使站点在整个TXOP中都能对媒体进行控制，进而省去部分竞争信道的时间，提高服务质量，然而很少有文献考虑动态TXOP非饱和状态模型。提出了非饱和状态下TCP/UDP混合流的简单分析模型，该模型考虑了提高服务质量的竞争自由脉冲(CFB)模式。仿真结果表明，该模型能有效地预测混合流的EDCA机制性能，并反映出混合TCP/UDP流共用信道时会产生相互影响。
关键词: 混合流，EDCA,QoS，非饱和状态，CFB
Abstract: IEEE 802. 11e EDCA mechanism permits using CFB (Contention Free Burst) , which will control the media in a whole TXOP. So it can save some time to occupy the channel and improve the QoS. But few papers think over TXOP in non-saturation. This paper proposed an easy analysis model of TC;P/UDP heterogeneous flows appear in non-saturated condition based on IEEE 802. lle EDCA mechanism the model thinks over CFB, the simulation results indicate that the model is valid on forecasting the EI}CA mechanism of mixed flows, and the interaction of the mixed TCP/UDP flows appear when they share the same channel.
Key words: Heterogeneous flows, EDCA, QoS, Non-saturation, CFB
张南，肖扬. 非饱和状态下TCP/UDP混合流的EDCA模型分析[J]. 计算机科学, 2011, 38(6): 64-69. https://doi.org/
ZHANG Nan,XIAO Yang. EDCA Model of TCP/UDP Flows Based on Non-saturation[J]. Computer Science, 2011, 38(6): 64-69. https://doi.org/
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