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Analysis on Consistency of Content Update in Cache-Enabled Heterogeneous Networks
KTH, School of Electrical Engineering (EES).
KTH, School of Electrical Engineering (EES).ORCID iD: 0000-0002-5407-0835
Inst Telecommun, Aveiro, Portugal..
KTH, School of Electrical Engineering (EES).
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2018 (English)In: 2018 IEEE Global Communications Conference, GLOBECOM 2018 - Proceedings, Institute of Electrical and Electronics Engineers (IEEE), 2018, article id 8647565Conference paper, Published paper (Refereed)
Abstract [en]

Content caching at small base stations has been considered as an efficient way to alleviate the use of expensive backhauling. In this paper, we study the caching content update for a cache-enabled heterogeneous network. Through analyzing a benchmark content update policy, the problem of content consistency, which is caused by the distinct update time at each caching entity, is firstly revealed. As well, the close form representation of the consistency probability in a mobile environment is derived. Furthermore, a deterministic content update strategy is investigated, where the trade-off between consistency probability and storage cost is characterized. Detailed simulations are provided to support our analysis, as well as present the impacts of moving speed of mobile terminals and transmission bandwidth for content delivery on the consistency performance.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2018. article id 8647565
Series
IEEE Global Communications Conference, ISSN 2334-0983
Keywords [en]
Wireless caching, content update, consistency
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-252937DOI: 10.1109/GLOCOM.2018.8647565ISI: 000465774302102Scopus ID: 2-s2.0-85063456030ISBN: 978-1-5386-4727-1 (print)OAI: oai:DiVA.org:kth-252937DiVA, id: diva2:1322908
Conference
2018 IEEE Global Communications Conference, GLOBECOM 2018; Abu Dhabi National Exhibition Centre (ADNEC)Abu Dhabi; United Arab Emirates; 9 December 2018 through 13 December 2018
Note

QC 20190611

Available from: 2019-06-11 Created: 2019-06-11 Last updated: 2019-06-11Bibliographically approved

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Ye, YuXiao, MingYue, Jing

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CiteExportLink to record
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Citation style
  • apa
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