TCP Stratos for stratosphere based computing platforms

A. A. Periola
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Abstract

Stratosphere computing platforms (SCPs) benefit from free cooling but face challenges necessitating transmission control protocol (TCP) re-design. The redesign should be considered due to stratospheric gravity waves (SGWs), and sudden stratospheric warming (SSWs). SGWs, and SSWs disturb the wireless channel during SCPs packet communications. SCP packet transmission can be done using existing TCP variants at the expense of high packet loss as existing TCP variants do not consider SGWs, and SSWs. TCP variants designed for satellite links are not suitable as they do not explicitly consider the SSW, and SGW. Moreover, the use of SCPs in future internet is at a nascent stage. The presented research proposes a new TCP variant i.e., TCP Stratos. TCP Stratos incorporates a parameter transfer mechanism and comprises loss-based; and delay-based components. However, its window evolution considers the occurrence of SSWs, and SGWs. The performance benefit of the proposed approach is evaluated via MATLAB numerical simulation. MATLAB simulation has been used because of the consideration of the stratosphere. The modelling of the stratosphere in this case is challenging for conventional tools and frameworks. Performance evaluation shows that using TCP Stratos instead of existing TCP variants and improved TCP variants reduces the packet loss rate by an average of (7.1–23.1) % and (3.8–12.8) %, respectively. The throughput is enhanced by an average of (20.5–53)%, and (40.9–70)% when TCP Stratos is used instead of existing TCP variant and modified TCP variant, respectively.
基于平流层计算平台的 TCP Stratos
平流层计算平台(SCP)受益于自由冷却,但也面临着需要重新设计传输控制协议(TCP)的挑战。重新设计应考虑平流层重力波(SGW)和平流层突然变暖(SSW)。SGW 和 SSW 会在 SCP 数据包通信过程中干扰无线信道。由于现有的 TCP 变体没有考虑 SGW 和 SSW,因此可以使用现有的 TCP 变体进行 SCP 数据包传输,但数据包丢失率较高。为卫星链路设计的 TCP 变体并不合适,因为它们没有明确考虑 SSW 和 SGW。此外,SCP 在未来互联网中的使用还处于初级阶段。本研究提出了一种新的 TCP 变种,即 TCP Stratos。TCP Stratos 融合了参数传输机制,包括基于损失的部分和基于延迟的部分。不过,它的窗口演进考虑到了 SSW 和 SGW 的发生。通过 MATLAB 数值仿真评估了所提方法的性能优势。使用 MATLAB 仿真是因为考虑到了平流层。在这种情况下,平流层的建模对传统工具和框架来说具有挑战性。性能评估显示,使用 TCP Stratos 代替现有 TCP 变体和改进的 TCP 变体,可将数据包丢失率分别平均降低 (7.1-23.1) % 和 (3.8-12.8) %。当使用 TCP Stratos 替代现有 TCP 变种和改进型 TCP 变种时,吞吐量平均分别提高了 (20.5-53)% 和 (40.9-70)%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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