Cost-Efficient Cloud-Based Video Streaming Through Measuring Hotness. (25th June 2018)
- Record Type:
- Journal Article
- Title:
- Cost-Efficient Cloud-Based Video Streaming Through Measuring Hotness. (25th June 2018)
- Main Title:
- Cost-Efficient Cloud-Based Video Streaming Through Measuring Hotness
- Authors:
- Darwich, Mahmoud
Salehi, Mohsen Amini
Beyazit, Ege
Bayoumi, Magdy - Abstract:
- Abstract: Video streaming providers generally have to store several formats of the same video and stream the appropriate format based on the characteristics of the viewer's device. This approach, called pre-transcoding, incurs a significant cost to the stream providers that rely on cloud services. Furthermore, pre-transcoding proven to be inefficient due to the long-tail access pattern to video streams. To reduce the incurred cost, we propose to pre-transcode only frequently accessed videos (called hot videos) and partially pre-transcode others, depending on their hotness degree. Therefore, we need to measure video stream hotness. Accordingly, we first provide a model to measure the hotness of video streams. Then, we develop methods that operate based on the hotness measure and determine how to pre-transcode videos to minimize the cost of stream providers. The partial pre-transcoding methods operate at different granularity levels to capture different patterns in accessing videos. Particularly, one of the methods operates faster but cannot partially pre-transcode videos with the non-long-tail access pattern. Experimental results show the efficacy of our proposed methods, specifically, when a video stream repository includes a high percentage of the Frequently Accessed Video Streams and a high percentage of videos with the non-long-tail accesses pattern.
- Is Part Of:
- Computer journal. Volume 62:Number 5(2019)
- Journal:
- Computer journal
- Issue:
- Volume 62:Number 5(2019)
- Issue Display:
- Volume 62, Issue 5 (2019)
- Year:
- 2019
- Volume:
- 62
- Issue:
- 5
- Issue Sort Value:
- 2019-0062-0005-0000
- Page Start:
- 641
- Page End:
- 656
- Publication Date:
- 2018-06-25
- Subjects:
- cloud services -- video on demand (VOD) -- partial pre-transcoding -- re-transcoding -- video streaming -- video stream hotness
Computers -- Periodicals
005.1 - Journal URLs:
- http://comjnl.oxfordjournals.org/ ↗
http://ukcatalogue.oup.com/ ↗ - DOI:
- 10.1093/comjnl/bxy057 ↗
- Languages:
- English
- ISSNs:
- 0010-4620
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 3394.060000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 11798.xml