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首页> 外文期刊>Aerospace and Electronic Systems, IEEE Transactions on >TFRC-Satellite: A TFRC Variant with a Loss Differentiation Algorithm for Satellite Networks
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TFRC-Satellite: A TFRC Variant with a Loss Differentiation Algorithm for Satellite Networks

机译：TFRC-Satellite：卫星网络中具有损耗微分算法的TFRC变体

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摘要

There is an increasing number of multimedia applications featured in satellite networks. However, the performance of the transmission control protocol (TCP) friendly rate control (TFRC) protocol, which is used to transfer multimedia data in satellite networks, is much poorer than that of traditional wired networks because of the long propagation delay and the high link error rates in satellite networks. An extended end-to-end TFRC protocol, TFRC-satellite, is proposed, which uses a loss differentiation algorithm (LDA) to differentiate packet losses and to avoid TFRC's misclassifications. The LDA depends on the queuing delay calculated based on the round-trip time (RTT) measurement and makes the loss event rate calculation of the equation of TFRC more accurate. TFRC-satellite requires no modifications to the network infrastructure and other protocols. Simulations show that TFRC-satellite acquires much higher throughput compared with the original TFRC, and the utilization of the bottleneck link is improved greatly.
机译：卫星网络中越来越多的多媒体应用功能。但是，用于传输卫星网络中多媒体数据的传输控制协议（TCP）友好速率控制（TFRC）协议的性能比传统的有线网络要差得多，这是因为其传播延迟长且链接数高卫星网络中的错误率。提出了一种扩展的端到端TFRC协议，即TFRC-satellite，该协议使用丢失区分算法（LDA）来区分包丢失并避免TFRC的错误分类。 LDA取决于基于往返时间（RTT）测量而计算的排队延迟，并使TFRC公式的丢失事件发生率计算更加准确。卫星TFRC不需要修改网络基础结构和其他协议。仿真表明，与原始的TFRC相比，TFRC卫星具有更高的吞吐率，并且极大地提高了瓶颈链路的利用率。

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