A Lightweight SCTP for Partially Reliable Overlay Video Multicast Service for Mobile Terminals
A Lightweight SCTP for Partially Reliable Overlay Video Multicast Service for Mobile Terminals
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DOI：
10.1109/tmm.2010.2053523
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发表时间：
2010-11
影响因子：
7.3
通讯作者：
Jinsuk Baek;P. Fisher;Minho Jo;Hsiao-Hwa Chen
中科院分区：
文献类型：
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作者：
Jinsuk Baek;P. Fisher;Minho Jo;Hsiao-Hwa Chen
在这篇文章中，视频多播协议的多宿主移动的终端提出了一种替代流控制传输协议（SCTP）的部分可靠的多播服务。它在应用层中与覆盖对等视频组播设施一起工作。对于多宿移动的终端，当在主路径切换过程中进行切换时，可能发生错误突发。该协议的关键问题是能够预测分组丢失，并在移动的终端完成其主路径切换过程后立即恢复丢失的分组。该属性控制传输的延迟灵敏度。相反，该协议可以容忍视频传输中的部分丢失，只要该丢失被限制到相对短的错误突发。此外，它大大减少了消息开销，并为多播应用提供了一种可扩展的通信机制。所提出的协议的性能改善来自1）的时间速度估计的移动的终端丢失的数据包预测在一个长的错误突发，和2）的要求，每个移动的终端，以表明哪些数据包可以安全地从其代理丢弃。
In this article, a video multicast protocol for multi-homed mobile terminals is proposed as an alternative stream control transmission protocol (SCTP) for partially reliable multicast services. It works with overlay peer-to-peer video multicast facility in the application layer. For a multi-homed mobile terminal, an error burst may occur when a handover is in process in the primary path switching procedure. The key issue concerned in this protocol is the ability to predict packet loss and to retransmit the lost packets as soon as a mobile terminal completes its primary path switching procedure. This property controls the delay sensitivity of transmissions. Conversely, the protocol can tolerate partial loss in video transmission as long as the loss is limited to a relatively short error burst. In addition, it reduces the message overhead significantly and provides a scalable communication mechanism for multicast applications. The performance improvement of the proposed protocol comes from 1) the estimation of temporal velocity of mobile terminals with lost packet prediction in a long error burst, and 2) the requirement for each mobile terminal to indicate which packets can be safely discarded from its agent.