Title
An efficient scheme for broadcasting popular videos at low buffer demand
Abstract
Data broadcasting is independent of arrivals of requests, and thus it is suitable to transmit popular videos that may interest many viewers at a particular period of time. One broadcasting method (called periodic broadcasting) is to divide a popular video into segments, which are then simultaneously broadcast on different data channels. Once clients want to watch the video, they download the segments from these channels. Specially, the greedy disk-conserving broadcasting (GDB) scheme supports a client with a small bandwidth. In comparison with other similar schemes such as the skyscraper broadcasting (SkB) and the client-centric approach (CCA) schemes, the GDB clients have smaller waiting time. Extending GDB, this work designs a reverse GDB (RGDB) scheme to achieve small buffering spaces as well as low bandwidths at the client. We further mathematically prove that RGDB still guarantees on-time video delivery at small client bandwidths. A formula is derived for the maximum number of segments buffered by an RGDB client. Finally, an analysis shows that RGDB has 33-50% smaller client buffer requirements than GDB in most situations.
Year
DOI
Venue
2008
10.1016/j.comcom.2008.02.014
Computer Communications
Keywords
Field
DocType
Periodic broadcasting,Video-on-demand (VOD),Buffer,Cable TV
Broadcasting,Periodic broadcasting,Computer science,Video delivery,Communication channel,Download,Computer network,Real-time computing,Bandwidth (signal processing),Cable television
Journal
Volume
Issue
ISSN
31
10
Computer Communications
Citations 
PageRank 
References 
9
0.49
21
Authors
5
Name
Order
Citations
PageRank
Hsiang-Fu Yu162338.09
Ying-Nan Chen290.49
Hung-Chang Yang31068.61
Zeng-Yuan Yang4522.96
Li-Ming Tseng527221.61