Many healthcare centers are deploying advanced Internet of Things (IoT) based on Software-Defined Networks (SDNs). Transmission Control Protocol (TCP) was developed to control the data transmission in wide range of networks and provides reliable communication by using many caching and congestion control schemes. TCP is predestined to always increase and decrease its congestion window size to make changes in traffic. Nowadays, about 50% IoT based SDN traffic is controlled by TCP CUBIC, which is the default congestion control scheme in Linux operating system. The aim of this research is to develop a new content-caching based congestion control scheme for advanced IoT enabled SDN networks to achieve better performance in healthcare infrastructure network environments. In this research, Congestion Control Module for Loss Event (CCM-LE) is proposed to enhance the performance of TCP CUBIC in advanced IoT based on SDN. Network Simulator 2 (NS-2) is used to simulate the experiments of CCM-LE and state-of-the-art schemes. Results show that the performance of CCM-LE outperforms by 19% as compared to state-of-the-art schemes.

中文翻译：

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使用先进的基于物联网的 SDN 通信网络部署的医疗中心基于损耗的拥塞控制模块

许多医疗中心正在部署基于软件定义网络 (SDN) 的先进物联网 (IoT)。传输控制协议 (TCP) 被开发用于控制广泛网络中的数据传输，并通过使用许多缓存和拥塞控制方案提供可靠的通信。TCP 注定总是增加和减少其拥塞窗口大小以改变流量。如今，大约 50% 的基于 IoT 的 SDN 流量由 TCP CUBIC 控制，这是 Linux 操作系统中的默认拥塞控制方案。本研究的目的是为支持物联网的高级 SDN 网络开发一种新的基于内容缓存的拥塞控制方案，以在医疗基础设施网络环境中实现更好的性能。在这项研究中，提出了用于丢失事件的拥塞控制模块（CCM-LE）以增强基于 SDN 的高级物联网中 TCP CUBIC 的性能。Network Simulator 2 (NS-2) 用于模拟 CCM-LE 和最先进方案的实验。结果表明，与最先进的方案相比，CCM-LE 的性能高出 19%。