An efficient fair content delivery scheme for coded caching

Asma Ghorbel, Apostolos Destounis, Mari Kobayashi, Georgios Paschos

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Coded caching has emerged as one of the promising solutions to deal with an exponentially increasing video traffic. This breakthrough builds on a careful design of file placement such that the total transmission time is minimized by multicasting sub-files simultaneously useful to many users. A number of follow-up works recently studied the extension of coded caching, initially assuming a perfect bottleneck link, to practical wireless channels. However, most of existing works address either the scalability of the cached wireless networks by assuming that each user requests a single file or the dynamic arrival of user requests by ignoring the scalability. In this work, we propose a low-complexity gradient- based scheduling that exploits multicast opportunities offered by coded caching, while keeping a number of multicast groups linear in the number of users. Simulation results illustrate that the proposed algorithm outperforms both coded caching and opportunistic scheduling over time-varying fading channels.

Original languageEnglish
Title of host publication2018 15th International Symposium on Wireless Communication Systems, ISWCS 2018
PublisherVDE VERLAG GMBH
ISBN (Electronic)9781538650059
DOIs
StatePublished - 12 Oct 2018
Externally publishedYes
Event15th International Symposium on Wireless Communication Systems, ISWCS 2018 - Lisbon, Portugal
Duration: 28 Aug 201831 Aug 2018

Publication series

NameProceedings of the International Symposium on Wireless Communication Systems
Volume2018-August
ISSN (Print)2154-0217
ISSN (Electronic)2154-0225

Conference

Conference15th International Symposium on Wireless Communication Systems, ISWCS 2018
Country/TerritoryPortugal
CityLisbon
Period28/08/1831/08/18

Keywords

  • Coded caching
  • Fairness
  • Opportunistic scheduling

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