Accelerating Mobile Applications With Parallel High-bandwidth and Low-latency Channels

Accelerating Mobile Applications With Parallel High-bandwidth and Low-latency Channels
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通过并行高带宽和低延迟通道加速移动应用程序

DOI:
10.1145/3446382.3448357
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发表时间:
2021
期刊:
HotMobile '21: Proceedings of the 22nd International Workshop on Mobile Computing Systems and Applications
影响因子:
--
通讯作者:
Singla, Ankit
Singla, Ankit
中科院分区:
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文献类型:
--
作者:
Sentosa, William;Chandrasekaran, Balakrishnan;Godfrey, P. Brighten;Hassanieh, Haitham;Maggs, Bruce;Singla, Ankit

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众所周知,网络浏览和游戏等交互式移动应用程序从低延迟网络中受益匪浅,因为应用程序与云服务器和其他用户设备进行通信。新兴的移动通道标准并没有满足这些需求:通用通道大大提高了带宽,但根据经验,对于常见的延迟敏感型应用,改进很小,而超低延迟通道只针对带宽要求非常低的特定应用。我们探索了无线通道设计的不同方向:同时将两个通道--一个高带宽,一个低延迟--同时用于通用应用。针对Web浏览,我们设计了细粒度的流量引导启发式算法,可以在主机网络堆栈的填充层实现,有效地利用了两个通道的高带宽和低延迟特性。在5G信道的特殊情况下,我们的实验表明,即使URLLC提供的带宽仅为eMBB的0.2%,但与仅在eMBB上传输流量相比,并行使用两个信道可以减少26%到59%的页面加载时间。我们相信,这种方法可能会使网络浏览之外的应用程序受益,可能会为服务提供商提供部署低延迟通道的激励,并为未来无线通道的设计提供方向。
Interactive mobile applications like web browsing and gaming are known to benefit significantly from low latency networking, as applications communicate with cloud servers and other users' devices. Emerging mobile channel standards have not met these needs: general-purpose channels are greatly improving bandwidth but empirically offer little improvement for common latency-sensitive applications, and ultra-low-latency channels are targeted at only specific applications with very low bandwidth requirements.We explore a different direction for wireless channel design: utilizing two channels -- one high bandwidth, one low latency -- simultaneously for general-purpose applications. With a focus on web browsing, we design fine-grained traffic steering heuristics that can be implemented in a shim layer of the host network stack, effectively exploiting the high bandwidth and low latency properties of both channels. In the special case of 5G's channels, our experiments show that even though URLLC offers just 0.2% of the bandwidth of eMBB, the use of both channels in parallel can reduce page load time by 26% to 59% compared to delivering traffic exclusively on eMBB. We believe this approach may benefit applications in addition to web browsing, may offer service providers incentives to deploy low latency channels, and suggests a direction for the design of future wireless channels.
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