Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Halarrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Hal
Conference object . 2018
Data sources: Hal
https://doi.org/10.23919/wons....
Article . 2018 . Peer-reviewed
Data sources: Crossref
versions View all 2 versions
addClaim

This Research product is the result of merged Research products in OpenAIRE.

You have already added 0 works in your ORCID record related to the merged Research product.

Random linear coded distributed caching for video streaming over D2D

Authors: Pedersen, Hasti; Sassatelli, Lucile; Aparicio-Pardo, Ramon;

Random linear coded distributed caching for video streaming over D2D

Abstract

—In distributed file systems, Random-Linear-Coding (RLC) reduces scheduler complexity and download time by eliminating the coupon collector problem [1]. Similar benefits for video streaming in Distributed Video Caching and Sharing (DVCS) systems require segmentation of videos into codeblocks, over which RLC can be applied, to ensure videos' quality. This research proposes RLC-based DVCS (RLC-DVCS), and shows that RLC reduces complexity of the distributed video caching decision from which video chunks to how many RLC chunks to cache at each mobile device, and better facilitates distributability of content among devices (more mobile devices dedicating fewer resources each). All while increasing the number of video requests served on-time from DVCS, despite the challenges of video streaming. RLC-DVCS utilizes optimization and approximation methods for video segmentation, cache selection and allocation, to ensure videos' quality and cache more videos of highest request probability by reducing distributed size of each video. Using lagrangian relaxation allows for distributed RLC-DVCS where each mobile device decides how many RLC chunks to cache with limited coordination from other devices or a centralized scheduler. Monte Carlo evaluation of the proposed methods shows that RLC-DVCS achieves higher recovery probability than symmetric allocation of RLC chunks across mobile devices or un-coded DVCS.

Keywords

Index Terms—Random Linear Coding, Mobile Device Caching, Wireless Networks, [INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI], Video Quality of Experience, Network Coding

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    2
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
Upload OA version
Are you the author of this publication? Upload your Open Access version to Zenodo!
It’s fast and easy, just two clicks!