Tradeoff of content sharing efficiency and secure transmission in coded caching systems

Yinan Ding, Li Wang, Huaqing Wu, Xuemin Shen, H. Vincent Poor

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Coded caching systems can facilitate traffic offloading from base stations and content sharing between content providers and content requesters via device- to-device (D2D) communications. In particular, dividing content items into mul-tiple pieces not only can enable the possibility of decreasing transmission delay and energy consumption, but also can contribute to secrecy enhancement since potential social outcasts can decode the content item only if they can obtain enough pieces. In this work, the tradeoff problem between content sharing efficiency and secure transmission in coded caching systems is investigated. First, to maximize the caching hit ratio with secrecy outage constraints, a joint optimization problem considering coding parameters, content placement, and power allocation is formulated. Further, a lower bound on the caching hit ratio and a upper bound on the secrecy outage probability are derived to simplify the original optimization problem. Numerical results demonstrate the effectiveness of the proposed scheme.

Original languageEnglish (US)
Title of host publication2018 IEEE International Conference on Communications, ICC 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781538631805
DOIs
StatePublished - Jul 27 2018
Event2018 IEEE International Conference on Communications, ICC 2018 - Kansas City, United States
Duration: May 20 2018May 24 2018

Publication series

NameIEEE International Conference on Communications
Volume2018-May
ISSN (Print)1550-3607

Other

Other2018 IEEE International Conference on Communications, ICC 2018
CountryUnited States
CityKansas City
Period5/20/185/24/18

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Keywords

  • Coded caching
  • Power allocation
  • Secure content sharing

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    Ding, Y., Wang, L., Wu, H., Shen, X., & Poor, H. V. (2018). Tradeoff of content sharing efficiency and secure transmission in coded caching systems. In 2018 IEEE International Conference on Communications, ICC 2018 - Proceedings [8422139] (IEEE International Conference on Communications; Vol. 2018-May). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICC.2018.8422139