Adjustable Two-Tier Cache for IPTV Based on Segmented Streaming. (21st May 2012)
- Record Type:
- Journal Article
- Title:
- Adjustable Two-Tier Cache for IPTV Based on Segmented Streaming. (21st May 2012)
- Main Title:
- Adjustable Two-Tier Cache for IPTV Based on Segmented Streaming
- Authors:
- Liang, Kai-Chun
Yu, Hsiang-Fu - Other Names:
- Ho Pin-Han Academic Editor.
- Abstract:
- Abstract : 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.
- Is Part Of:
- International journal of digital multimedia broadcasting. Volume 2012(2012)
- Journal:
- International journal of digital multimedia broadcasting
- Issue:
- Volume 2012(2012)
- Issue Display:
- Volume 2012, Issue 2012 (2012)
- Year:
- 2012
- Volume:
- 2012
- Issue:
- 2012
- Issue Sort Value:
- 2012-2012-2012-0000
- Page Start:
- Page End:
- Publication Date:
- 2012-05-21
- Subjects:
- Multimedia communications -- Periodicals
Digital audio broadcasting -- Periodicals
Mobile communication systems -- Periodicals
Digital audio broadcasting
Mobile communication systems
Multimedia communications
Periodicals
621.382 - Journal URLs:
- https://www.hindawi.com/journals/ijdmb/ ↗
http://bibpurl.oclc.org/web/51605 ↗ - DOI:
- 10.1155/2012/192314 ↗
- Languages:
- English
- ISSNs:
- 1687-7578
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library HMNTS - ELD Digital store
- Ingest File:
- 10512.xml