A low cost optical storage server for near video-on-demand systems

Author

Tsao, Shiao-Li

Author_Institution

Comput. & Commun. Res. Labs., Ind. Technol. Res. Inst., Hsinchu, Taiwan

Volume

47

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

56

Lastpage

65

Abstract

A near video-on-demand system is one of the most economic and practical applications to provide high quality digital video services through a network in terms of cost, storage and network capacity requirements. In this paper, an optical storage server with a novel data placement and retrieval schemes is proposed for a near video-on-demand system. The proposed data placement scheme on the optical discs fully exploits the periodical broadcast characteristic of an NVOD service to optimize the disc bandwidth utilization. By further applying our retrieval schedule strategy, the buffer requirement of a system can be significantly reduced. In that way, the maximal number of supported streams with the minimal buffer requirement can be easily achieved, The storage system can be applied not only to CD-ROMs storing MPEG-1, but also to Digital Video Disks (DVDs) storing MPEG-2 in the near future

Keywords

CD-ROMs; broadcasting; buffer storage; scheduling; video on demand; video servers; CD-ROMs; DVD; Digital Video Disks; MPEG-1; MPEG-2; NVOD service; buffer requirement; data placement; digital video services; disc bandwidth utilization; low cost optical storage server; near video-on-demand systems; optical discs; periodical broadcast characteristics; retrieval; retrieval schedule strategy; supported streams; Bandwidth; CD-ROMs; Costs; DVD; Drives; Network servers; Optical buffering; Optical devices; Streaming media; Video on demand;

fLanguage

English

Journal_Title

Broadcasting, IEEE Transactions on

Publisher

ieee

ISSN

0018-9316

Type

jour

DOI

10.1109/11.920781

Filename

920781