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arXiv 2208.09613cs.NI
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Controlling Congestion via In-Network Content Adaptation

Yongzhou Chen, Ammar Tahir, Radhika Mittal

摘要:

认识到这是固有的困难,以精确匹配的发送速率在endhost上的动态蜂窝链路上的可用容量,我们建立了一个系统,八达通,发送实时数据流通过蜂窝网络使用不精确的控制器(错误的高估网络容量的一侧),然后丢弃适当的数据包在蜂窝网络缓冲区,以匹配实际容量。我们设计了参数化的原语,用于实现数据包丢弃逻辑,在端主机的应用程序可以配置不同的表达不同的内容适配策略。Octopus传输将应用程序指定的参数编码在数据包报头字段中,路由器解析这些字段以执行所需的丢弃行为。我们的评估表明,涉及标准和体积视频的实时应用程序可以被设计为利用Octopus,并实现比最先进的方案高1.5-50倍的性能。

英文摘要:

Realizing that it is inherently difficult to precisely match the sending rates at the endhost with the available capacity on dynamic cellular links, we build a system, Octopus, that sends real-time data streams over cellular networks using an imprecise controller (that errs on the side of over-estimating network capacity), and then drops appropriate packets in the cellular network buffers to match the actual capacity. We design parameterized primitives for implementing the packet dropping logic, that the applications at the endhost can configure differently to express different content adaptation policies. Octopus transport encodes the app-specified parameters in packet header fields, which the routers parse to execute the desired dropping behavior. Our evaluation shows how real-time applications involving standard and volumetric videos can be designed to exploit Octopus, and achieve 1.5-50 times better performance than state-of-the-art schemes.

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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