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Adjustable Two-Tier Cache for IPTV Based on Segmented Streaming
Joint Authors
Source
International Journal of Digital Multimedia Broadcasting
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-05-21
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Engineering Sciences and Information Technology
Telecommunications Engineering
Electronic engineering
Information Technology and Computer Science
Abstract EN
Internet protocol TV (IPTV) is a promising Internet killer application, which integrates video, voice, and data onto a single IP network, and offers viewers an innovative set of choices and control over their TV content.
To provide high-quality IPTV services, an effective strategy is based on caching.
This work proposes a segment-based two-tier caching approach, which divides each video into multiple segments to be cached.
This approach also partitions the cache space into two layers, where the first layer mainly caches to-be-played segments and the second layer saves possibly played segments.
As the segment access becomes frequent, the proposed approach enlarges the first layer and reduces the second layer, and vice versa.
Because requested segments may not be accessed frequently, this work further designs an admission control mechanism to determine whether an incoming segment should be cached or not.
The cache architecture takes forward/stop playback into account and may replace the unused segments under the interrupted playback.
Finally, we conduct comprehensive simulation experiments to evaluate the performance of the proposed approach.
The results show that our approach can yield higher hit ratio than previous work under various environmental parameters.
American Psychological Association (APA)
Liang, Kai-Chun& Yu, Hsiang-Fu. 2012. Adjustable Two-Tier Cache for IPTV Based on Segmented Streaming. International Journal of Digital Multimedia Broadcasting،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-453294
Modern Language Association (MLA)
Liang, Kai-Chun& Yu, Hsiang-Fu. Adjustable Two-Tier Cache for IPTV Based on Segmented Streaming. International Journal of Digital Multimedia Broadcasting No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-453294
American Medical Association (AMA)
Liang, Kai-Chun& Yu, Hsiang-Fu. Adjustable Two-Tier Cache for IPTV Based on Segmented Streaming. International Journal of Digital Multimedia Broadcasting. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-453294
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-453294