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A TCP-friendly congestion control scheme resolving a drop-to-zero problem for reliable multicast

机译:一种TCP友好的拥塞控制方案,解决了可靠的多播下降到零的问题

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摘要

In a research field of reliable multicast communications, congestion control achieving TCP-friendliness is regarded as one of the most important technical issues. In a research field of reliable multicast communications, congestion control achieving TCP-friendliness is regarded as one of the most important technical issues. We have proposed a congestion control scheme for reliable multicast, in which the sender regulates its transmission rate using NAKs from receivers. Unless the sender properly handles spatially uncorrelated losses at receivers, however, a problem that the transmission rate substantially declines, the so-called drop-to-zero problem, occurs. As a result, TCP friendliness cannot be realized. In this study, we apply a method using a representative for congestion control purposes to our proposed scheme to avoid the drop-to-zero problem. Where the sender regulates its transmission rate in response to NAKs only from the representative. Our simulation results show that our proposed scheme avoids the drop-to-zero problem and achieves TCP-friendliness even if there are a lot of receivers suffering uncorrelated losses.
机译:在可靠的多播通信的研究领域中,实现TCP友好的拥塞控制被认为是最重要的技术问题之一。在可靠的多播通信的研究领域中,实现TCP友好的拥塞控制被认为是最重要的技术问题之一。我们提出了一种用于可靠多播的拥塞控制方案,其中发送方使用接收方的NAK来调节其传输速率。但是,除非发送方适当地处理接收方在空间上不相关的损失,否则会发生传输速率显着下降的问题,即所谓的零落问题。结果,不能实现TCP友好。在这项研究中,我们将一种以拥塞控制为目的的代表方法应用到我们提出的方案中,以避免掉零问题。发件人仅响应代表的NAK来调节其传输速率的地方。我们的仿真结果表明,即使有很多接收器遭受不相关的损失,我们提出的方案也避免了零落问题,并实现了TCP友好性。

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