Periodic broadcasting with VBR-encoded video

Martin Reisslein, Despina Saparilla, Keith W. Ross

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We consider designing near video on demand (NVOD) systems that minimize startup latency while maintaining high image quality. Recently nonuniform segmentation has been used to develop periodic broadcasting techniques for NVOD. These techniques give significant reductions in startup latency as compared with more conventional uniform segmentation. Essentially all of these schemes assume, however, that the videos are CBR-encoded. Since a CBR-encoded video has a larger average rate than an open-loop VBR encoding with the same image quality, there is potential to obtain further performance improvements by using VBR video. In this paper we develop a series of multiplexing schemes for the periodic broadcasting of VBR-encoded video that are based on smoothing, server buffering, and client prefetching. Two key but conflicting performance measures exist when using VBR video: latency and packet loss. By introducing small additional delays in our multiplexing schemes, our trace-based numerical work shows that the schemes can achieve nearly 100% link utilization with negligible packet loss. When the ratio of the CBR rate to the VBR average rate is a modest 1.8, startup latency can be reduced by a factor of four or more for common scenarios.

Original languageEnglish (US)
Pages (from-to)503-516
Number of pages14
JournalMultimedia Systems
Volume9
Issue number6
DOIs
StatePublished - Jun 2004

Fingerprint

Video on demand
Broadcasting
Packet loss
Multiplexing
Image quality
Latency
Start-up
Video on Demand
Packet Loss
Image Quality
Servers
Segmentation
Prefetching
Performance Measures
Smoothing
Encoding
Server
Trace
Minimise
Scenarios

Keywords

  • Near video on demand
  • Prefetching
  • Statistical multiplexing
  • Variable bit rate video

ASJC Scopus subject areas

  • Information Systems
  • Theoretical Computer Science
  • Computational Theory and Mathematics

Cite this

Periodic broadcasting with VBR-encoded video. / Reisslein, Martin; Saparilla, Despina; Ross, Keith W.

In: Multimedia Systems, Vol. 9, No. 6, 06.2004, p. 503-516.

Research output: Contribution to journalArticle

Reisslein, Martin ; Saparilla, Despina ; Ross, Keith W. / Periodic broadcasting with VBR-encoded video. In: Multimedia Systems. 2004 ; Vol. 9, No. 6. pp. 503-516.
@article{5d64e432ce504e78bb6c182bfd664f97,
title = "Periodic broadcasting with VBR-encoded video",
abstract = "We consider designing near video on demand (NVOD) systems that minimize startup latency while maintaining high image quality. Recently nonuniform segmentation has been used to develop periodic broadcasting techniques for NVOD. These techniques give significant reductions in startup latency as compared with more conventional uniform segmentation. Essentially all of these schemes assume, however, that the videos are CBR-encoded. Since a CBR-encoded video has a larger average rate than an open-loop VBR encoding with the same image quality, there is potential to obtain further performance improvements by using VBR video. In this paper we develop a series of multiplexing schemes for the periodic broadcasting of VBR-encoded video that are based on smoothing, server buffering, and client prefetching. Two key but conflicting performance measures exist when using VBR video: latency and packet loss. By introducing small additional delays in our multiplexing schemes, our trace-based numerical work shows that the schemes can achieve nearly 100{\%} link utilization with negligible packet loss. When the ratio of the CBR rate to the VBR average rate is a modest 1.8, startup latency can be reduced by a factor of four or more for common scenarios.",
keywords = "Near video on demand, Prefetching, Statistical multiplexing, Variable bit rate video",
author = "Martin Reisslein and Despina Saparilla and Ross, {Keith W.}",
year = "2004",
month = "6",
doi = "10.1007/s00530-003-0123-2",
language = "English (US)",
volume = "9",
pages = "503--516",
journal = "Multimedia Systems",
issn = "0942-4962",
publisher = "Springer Verlag",
number = "6",

}

TY - JOUR

T1 - Periodic broadcasting with VBR-encoded video

AU - Reisslein, Martin

AU - Saparilla, Despina

AU - Ross, Keith W.

PY - 2004/6

Y1 - 2004/6

N2 - We consider designing near video on demand (NVOD) systems that minimize startup latency while maintaining high image quality. Recently nonuniform segmentation has been used to develop periodic broadcasting techniques for NVOD. These techniques give significant reductions in startup latency as compared with more conventional uniform segmentation. Essentially all of these schemes assume, however, that the videos are CBR-encoded. Since a CBR-encoded video has a larger average rate than an open-loop VBR encoding with the same image quality, there is potential to obtain further performance improvements by using VBR video. In this paper we develop a series of multiplexing schemes for the periodic broadcasting of VBR-encoded video that are based on smoothing, server buffering, and client prefetching. Two key but conflicting performance measures exist when using VBR video: latency and packet loss. By introducing small additional delays in our multiplexing schemes, our trace-based numerical work shows that the schemes can achieve nearly 100% link utilization with negligible packet loss. When the ratio of the CBR rate to the VBR average rate is a modest 1.8, startup latency can be reduced by a factor of four or more for common scenarios.

AB - We consider designing near video on demand (NVOD) systems that minimize startup latency while maintaining high image quality. Recently nonuniform segmentation has been used to develop periodic broadcasting techniques for NVOD. These techniques give significant reductions in startup latency as compared with more conventional uniform segmentation. Essentially all of these schemes assume, however, that the videos are CBR-encoded. Since a CBR-encoded video has a larger average rate than an open-loop VBR encoding with the same image quality, there is potential to obtain further performance improvements by using VBR video. In this paper we develop a series of multiplexing schemes for the periodic broadcasting of VBR-encoded video that are based on smoothing, server buffering, and client prefetching. Two key but conflicting performance measures exist when using VBR video: latency and packet loss. By introducing small additional delays in our multiplexing schemes, our trace-based numerical work shows that the schemes can achieve nearly 100% link utilization with negligible packet loss. When the ratio of the CBR rate to the VBR average rate is a modest 1.8, startup latency can be reduced by a factor of four or more for common scenarios.

KW - Near video on demand

KW - Prefetching

KW - Statistical multiplexing

KW - Variable bit rate video

UR - http://www.scopus.com/inward/record.url?scp=2942754272&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=2942754272&partnerID=8YFLogxK

U2 - 10.1007/s00530-003-0123-2

DO - 10.1007/s00530-003-0123-2

M3 - Article

AN - SCOPUS:2942754272

VL - 9

SP - 503

EP - 516

JO - Multimedia Systems

JF - Multimedia Systems

SN - 0942-4962

IS - 6

ER -