Cloud-Assisted Peer-to-Peer Video Streaming with Minimum Latency

Satoshi FUJITA  

Publication
IEICE TRANSACTIONS on Information and Systems   Vol.E102-D   No.2   pp.239-246
Publication Date: 2019/02/01
Online ISSN: 1745-1361
DOI: 10.1587/transinf.2018EDP7229
Type of Manuscript: PAPER
Category: Fundamentals of Information Systems
Keyword: 
P2P video streaming system,  cloud assistance,  2-hop delivery scheme,  

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Summary: 
In this paper, we consider cloud-assisted Peer-to-Peer (P2P) video streaming systems, in which a given video stream is divided into several sub-streams called stripes and those stripes are delivered to all subscribers through different spanning trees of height two, with the aid of cloud upload capacity. We call such a low latency delivery of stripes a 2-hop delivery. This paper proves that if the average upload capacity of the peers equals to the bit rate of the video stream and the video stream is divided into a stripes, then 2-hop delivery of all stripes to n peers is possible if the upload capacity assisted by the cloud is 3n/a. If those peers have a uniform upload capacity, then the amount of cloud assistance necessary for the 2-hop delivery reduces to n/a.