A Scheduler Designed for the P2P Live Streaming System

A Scheduler Designed for the P2P Live Streaming System
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一种专为P2P直播系统设计的调度器

DOI:
10.4028/www.scientific.net/amr.756-759.1889
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发表时间:
2013-09
期刊:
Advanced Materials Research
影响因子:
--
通讯作者:
Huang Huai
Huang Huai
中科院分区:
其他
文献类型:
--
作者:
Kai Lei;Huang Huai

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P2P(Peer To Peer)直播是当前的热门研究课题,但由于系统架构和调度策略的缺陷,现有的P2P流媒体应用存在启动延迟大、播放延迟大、播放连续性差等问题。在本文中,我们的目标是在上传带宽异构化、传播时延异构化、传播时延动态化的环境下,从源头上降低播放时延。我们提出了一种邻居选择方法,以充分利用节点的能力,并考虑其调度器的回放截止时间。这种新的对等策略通常会导致较低的调度延迟并提高播放连续性。最后,我们应用了接收器驱动的组块选择和混合调度算法。通过仿真,我们可以观察到我们的调度器具有更好的性能。
P2P(peer to peer) live streaming is currently a popular research topic, but for the defective of system architecture and scheduling policy, existing P2P streaming applications have poor user experience, such as long startup delay, long playback delay, and low playback continuity. In this paper, we aim at reducing the playback delay from the source in the environment of heterogeneous upload bandwidth, heterogeneous and dynamic propagation delays. We propose a neighbor selection method in order to utilize the capacity of the peer and consider their scheduler playback deadline. This new peering strategy typically leads to low scheduling delays and improve the playback continuity. Finally we apply a receiver driven chunk selection with a mix scheduling algorithm. Through simulation, we can observe that our scheduler can outperform.
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