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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/103159


    Title: An Efficient Video Content Delivery Strategy for Radio Access Network Environments
    Authors: Chuang, Po-Jen;Chen, Hang-Li
    Contributors: 淡江大學電機工程學系
    Keywords: Content delivery networks (CDNs);radio access networks (RANs);caching strategies;video request hits;complexity;delay;experimental evaluation
    Date: 2015-04-01
    Issue Date: 2015-05-19 22:46:35 (UTC+8)
    Publisher: Daedoek-Gu: Science and Engineering Research Support Society
    Abstract: When a radio access network (RAN) environment cannot handle the tremendous
    mobile data traffic, users may experience degraded or declined services. To help process
    the large number of user video requests in RANs, a content delivery network (CDN)
    architecture has been recently introduced, which establishes a number of cache servers
    outside the source server for users to get the needed data from the nearest cache server.
    To upgrade the performance of a wireless CDN, this paper presents a new caching
    strategy based on analytical results of real user video request traces and specific caching
    considerations for videos with different popularity degrees. The new strategy first caches
    videos with high popularity to all helpers and then caches those with low popularity to the
    remaining helper storage to enhance the overall request hits. Performance evaluation
    exhibits that, when compared with other caching strategies, our new strategy is able to
    yield better request hits with low complexity and average delay time.
    Relation: Journal of Future Generation Communication and Networking 8(2), pp.9-20
    Appears in Collections:[電機工程學系暨研究所] 期刊論文

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