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Joint cache-channel coding over erasure broadcast channels

  • Technical University of Munich

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

36 Citations (Scopus)

Abstract

We consider a cache-aided communications system in which a transmitter communicates with many receivers over an erasure broadcast channel. The system serves as a basic model for communicating on-demand content during periods of high network congestion, where some content can be preplaced in local caches near the receivers. We formulate the cacheaided communications problem as a joint cache-channel coding problem, and characterise some information-theoretic tradeoffs between reliable communications rates and cache sizes. We show that if the receivers experience different channel qualities, then using unequal cache sizes and joint cache-channel coding improves system efficiency.

Original languageEnglish
Title of host publication2015 12th International Symposium on Wireless Communication Systems, ISWCS 2015 - Proceedings
PublisherVDE Verlag GmbH
Pages201-205
Number of pages5
ISBN (Electronic)9781467365406
DOIs
Publication statusPublished - 15 Apr 2015
Event12th International Symposium on Wireless Communication Systems, ISWCS 2015 - Brussels, Belgium
Duration: 25 Aug 201528 Aug 2015

Publication series

NameProceedings of the International Symposium on Wireless Communication Systems
Volume2016-April
ISSN (Print)2154-0217
ISSN (Electronic)2154-0225

Conference

Conference12th International Symposium on Wireless Communication Systems, ISWCS 2015
Country/TerritoryBelgium
CityBrussels
Period25/08/1528/08/15

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