UDP-Based Reliable File Delivery Mechanisms for Video Streaming over Unstable Wireless Networks

被引：0

作者：

Chang, Shih-Ying ^{[1
]}

Yeh, Xin-Yan ^{[2
]}

Chiao, Hsin-Ta ^{[1
]}

Sun, Hung-Min ^{[2
]}

机构：

[1] Information and Communications Research Laboratories, Industrial Technology Research Institute, Hsingchu

[2] Department of Computer Science, National Tsing Hua University, Hsingchu

来源：

Smart Innovation, Systems and Technologies | 2013年 / 20卷

关键词：

Al-fec; File transfer protocol; Flute; Udp; Video streaming; Wireless networks;

D O I：

10.1007/978-3-642-35452-6_57

中图分类号：

学科分类号：

摘要：

In recent years, wireless technologies have been widely deployed and the corresponding applications (e.g., video streaming services) have shown high economic potentials. Different from wired networks, wireless signals are more sensitive to the variations of deployed environments, resulting in variant Round Trip Time (RTT) and Packet Loss Rate (PLR). In this paper, we investigate the performance issues about a unicast video streaming service delivered as a file delivery service over unstable wireless networks. When deployed over unstable wireless networks, the throughput of UDP-based file transfer protocols (e.g., File Delivery over Unidirectional Transport (FLUTE) with Application-Layer Forward Error Correction (AL-FEC)) is comparable to that of TCPbased ones (e.g., FTP). However, the throughput of FLUTE may not be optimal on unicast channels due to the lack of feedback mechanisms. In order to improve the throughput, we proposed Reliable FLUTE (RFLUTE) by introducing the feedback mechanisms into the FLUTE. We have fully implemented R-FLUTE and evaluate effective configurations of R-FLUTE. We also compare R-FLUTE with other conventional TCPbased and UDP-based file transfer protocols (e.g., FTP and TFTP) over unstable wireless networks. The experiment result shows that in comparison with FTP, R-FLUTE shows 10% to 80% throughput gain over unstable wireless networks. © Springer-Verlag Berlin Heidelberg 2013.

引用

页码：561 / 570

页数：9

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