Caching in mobile HetNets: A throughput-delay trade-off perspective

Trung Anh Do, Sang Woon Jeon, Won Yong Shin

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

4 Citations (Scopus)

Abstract

We analyze the optimal throughput-delay trade-off in content-centric mobile heterogeneous networks (HetNets), where each node moves according to the random walk mobility model and requests a content object from the library independently at random, according to a Zipf popularity distribution. Instead of allowing access to all content objects at base stations (BSs) via costly backhaul, we consider a more practical scenario where mobile nodes and BSs, each having a finite-size cache space, are able to cache a subset of content objects so that each request is served by other mobile nodes or BSs via multihop transmissions. Under the protocol model, we characterize a fundamental throughput-delay trade-off in terms of scaling laws by introducing our content delivery routing protocol and the corresponding optimal caching allocation strategy.

Original languageEnglish
Title of host publicationProceedings - ISIT 2016; 2016 IEEE International Symposium on Information Theory
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1247-1251
Number of pages5
ISBN (Electronic)9781509018062
DOIs
Publication statusPublished - 2016 Aug 10
Event2016 IEEE International Symposium on Information Theory, ISIT 2016 - Barcelona, Spain
Duration: 2016 Jul 102016 Jul 15

Publication series

NameIEEE International Symposium on Information Theory - Proceedings
Volume2016-August
ISSN (Print)2157-8095

Other

Other2016 IEEE International Symposium on Information Theory, ISIT 2016
CountrySpain
CityBarcelona
Period16/7/1016/7/15

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Information Systems
  • Modelling and Simulation
  • Applied Mathematics

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  • Cite this

    Do, T. A., Jeon, S. W., & Shin, W. Y. (2016). Caching in mobile HetNets: A throughput-delay trade-off perspective. In Proceedings - ISIT 2016; 2016 IEEE International Symposium on Information Theory (pp. 1247-1251). [7541498] (IEEE International Symposium on Information Theory - Proceedings; Vol. 2016-August). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISIT.2016.7541498