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D-cast: DSC based soft mobile video broadcast

  • Microsoft USA

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Mobile video broadcasting is a popular application of wireless network. However, the traditional layer based approaches have limited supports to the accommodation of users with diverse channel conditions. The newly emerged Softcast approach provides smooth multicast performance but is not very efficient in inter frame compression. In this work, we propose a new video multicast approach: D-cast. Instead of using conventional close loop prediction (CLP), D-cast is based on distributed source coding (DSC) theory. This helps D-cast to avoid error propagation but still achieve high compression efficiency in inter frame coding. D-cast outperforms softcast 3 - 5dB in video PSNR while maintaining the similar graceful degradation feature as softcast. In addition, D-cast is efficient in not only narrow band channel but also wide band channel.

Original languageEnglish
Title of host publicationProceedings of the 10th International Conference on Mobile and Ubiquitous Multimedia, MUM'11
Pages226-235
Number of pages10
DOIs
StatePublished - 2011
Event10th International Conference on Mobile and Ubiquitous Multimedia, MUM'11 - Beijing, China
Duration: 7 Dec 20119 Dec 2011

Publication series

NameProceedings of the 10th International Conference on Mobile and Ubiquitous Multimedia, MUM'11

Conference

Conference10th International Conference on Mobile and Ubiquitous Multimedia, MUM'11
Country/TerritoryChina
CityBeijing
Period7/12/119/12/11

Keywords

  • D-cast
  • coset coding
  • distributed source coding
  • hieratical modulation
  • motion compensation
  • scalable video coding
  • softcast
  • syndrome coding
  • video multicast

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