DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Woo-Joong | ko |
dc.contributor.author | Joo, Kyung-no | ko |
dc.contributor.author | Youn, Chan-Hyun | ko |
dc.date.accessioned | 2019-12-18T06:20:05Z | - |
dc.date.available | 2019-12-18T06:20:05Z | - |
dc.date.created | 2019-11-21 | - |
dc.date.created | 2019-11-21 | - |
dc.date.created | 2019-11-21 | - |
dc.date.created | 2019-11-21 | - |
dc.date.issued | 2019-11 | - |
dc.identifier.citation | IEEE ACCESS, v.7, pp.177148 - 177163 | - |
dc.identifier.issn | 2169-3536 | - |
dc.identifier.uri | http://hdl.handle.net/10203/269889 | - |
dc.description.abstract | Mobile Edge Computing Caching System (MECCS) realizes low-latency and high-bandwidth content access and enables seamless 4K Ultra High Definition (UHD) video streaming by caching content in advance at edge-servers of a cellular network. The objective of MECCS is to maximize cache hit by caching highly popular video content while utilizing the storage capacity efficiently in edge-servers. Most of existing caching schemes estimate the popularity of each content based on content request history in off-line or on-line manners, considering the characteristics of Video-on-Demand (VoD) content which has long-term time-varying popularity. However, since live streaming follows Short-term Time-Varying (STV) characteristics, estimating popularity based on content request history do not guarantee acceptable performance on cache hit for live streaming. In this paper, we propose a request model to estimate the popularity distribution considering STV characteristics. Also, we propose a STV request model-based chunk caching scheme to cache highly popular content and enhance cache hit in multiple live channels, utilizing the storage capacity of collaborative edge-servers efficiently. Experimental results show that the proposed scheme outperforms existing schemes regarding cache hit and backhaul traffic. | - |
dc.language | English | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.title | Short-Term Time-Varying Request Model Based Chunk Caching Scheme for Live Streaming in Mobile Edge-Cloud Environment | - |
dc.type | Article | - |
dc.identifier.wosid | 000509405300058 | - |
dc.identifier.scopusid | 2-s2.0-85077199840 | - |
dc.type.rims | ART | - |
dc.citation.volume | 7 | - |
dc.citation.beginningpage | 177148 | - |
dc.citation.endingpage | 177163 | - |
dc.citation.publicationname | IEEE ACCESS | - |
dc.identifier.doi | 10.1109/ACCESS.2019.2955749 | - |
dc.contributor.localauthor | Youn, Chan-Hyun | - |
dc.description.isOpenAccess | Y | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Mobile edge computing | - |
dc.subject.keywordAuthor | content caching | - |
dc.subject.keywordAuthor | content popularity | - |
dc.subject.keywordAuthor | live streaming | - |
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