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標題Title: CLive Cloud-Assisted P2P Live Streaming
作者Authors: 吳靖緯
上傳單位Department: 資訊工程系
上傳時間Date: 2012-12-7
上傳者Author: 吳靖緯
審核單位Department: 資訊工程系
審核老師Teacher: 許子衡
檔案類型Categories: 研究生論文報告Thesis
關鍵詞Keyword: Live Streaming, cloud, vidoe streaming
摘要Abstract: Peer-to-peer (P2P) video streaming is an emerging
technology that reduces the barrier to stream live events over
the Internet. Unfortunately, satisfying soft real-time constraints
on the delay between the generation of the stream and its actual
delivery to users is still a challenging problem. Bottlenecks in
the available upload bandwidth, both at the media source and
inside the overlay network, may limit the quality of service
(QoS) experienced by users. A potential solution for this problem
is assisting the P2P streaming network by a cloud computing
infrastructure to guarantee a minimum level of QoS. In such
approach, rented cloud resources (helpers) are added on demand
to the overlay, to increase the amount of total available bandwidth
and the probability of receiving the video on time. Hence, the
problem to be solved becomes minimizing the economical cost,
provided that a set of constraints on QoS is satisfied. The main
contribution of this paper is CLIVE, a cloud-assisted P2P live
streaming system that demonstrates the feasibility of these ideas.
CLIVE estimates the available capacity in the system through
a gossip-based aggregation protocol and provisions the required
resources from the cloud to guarantee a given level of QoS at
low cost. We perform extensive simulations and evaluate CLIVE
using large-scale experiments under dynamic realistic settings.

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