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Download fileJoint Transcoding Task Assignment and Association Control for Fog-assisted Crowdsourced Live Streaming
journal contribution
posted on 2019-09-09, 12:39 authored by Xingchi Liu, Mahsa DerakhshaniMahsa Derakhshani, Sangarapillai LambotharanSangarapillai LambotharanThe rapid development of content delivery networks
and cloud computing has facilitated crowdsourced live-streaming
platforms (CLSP) that enable people to broadcast live videos
which can be watched online by a growing number of viewers.
However, in order to ensure reliable viewer experience, it is
important that the viewers should be provided with multiple
standard video versions. To achieve this, we propose a joint
fog-assisted transcoding and viewer association technique which
can outsource the transcoding load to a fog device pool and
determine the fog device with which each viewer will be
associated, to watch desired videos. The resulting non-convex
integer programming has been solved using a computationally
attractive complementary geometric programming (CGP). The
performance of the proposed algorithm closely matches that of
the globally optimum solution obtained by an exhaustive search.
Furthermore, the trace-driven simulations demonstrate that our
proposed algorithm is able to provide adaptive bit rate (ABR)
services.
Funding
Engineering and Physical Sciences Research Council (EPSRC) under Grant EP/R006385/1
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
IEEE Communications LettersVolume
23Issue
11Pages
2036 - 2040Publisher
Institute of Electrical and Electronics Engineers (IEEE)Version
- AM (Accepted Manuscript)
Rights holder
© IEEEPublisher statement
© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Publication date
2019-08-08Copyright date
2019ISSN
1089-7798eISSN
2373-7891Publisher version
Language
- en