PIBES - A Competing-Flow-Aware Protocol for Real-Time Video Applications
Publication in refereed journal

替代計量分析
.

其它資訊
摘要With the recent explosive growth in online classes and virtual meetings, real-time video communication has quickly become essential to everyday life. Despite its widespread deployment, our investigation revealed that current protocols, ranging from industry standards such as WebRTC to state-of-the-art research such as Salsify, frequently perform sub-optimally in the presence of competing flows at the same bottleneck. For example, WebRTC’s throughput can degrade from 73% to a mere 8% of the available bandwidth when competing with just two TCP flows. We tackle this problem in this work by introducing a novel PIBES protocol for real-time video applications to operate in the presence of competing TCP traffic. PIBES employs a new inband bandwidth estimation method that can quickly and accurately measure the bottleneck link bandwidth even with competing flows. Moreover, PIBES can detect the absence or presence of competing flows, which enables it to maximize video quality when there is no competing flow and to maintain acceptable video quality while sharing bandwidth with competing flows. Experiments demonstrate that PIBES achieves throughput and delay comparable to the state-of-art protocols, but outperforms them significantly in the presence of competing TCP flows.
出版社接受日期14.08.2020
著者Lioba Heimbach, Lingfeng Guo, Rudolf K. H. Ngan, Jack Y. B. Lee
期刊名稱IEEE Open Journal of the Communications Society
出版年份2020
卷號1
出版社IEEE
頁次1267 - 1277
電子國際標準期刊號2644-125X
語言美式英語
關鍵詞Streaming media, Bandwidth, Protocols, Delays, Estimation, WebRTC

上次更新時間 2021-18-09 於 00:07