Wireless Video Multicast With Cooperative and Incremental Transmission of Parity Packets

Research output: Contribution to journalArticle

Abstract

This paper introduces a novel and efficient approach for user cooperation in wireless video multicast using randomized distributed space time codes (R-DSTC), in which the sender first transmits the source packets, and the sender and receivers that have received all source packets then generate and send the parity packets simultaneously using R-DSTC. As more parity packets are delivered, more receivers can recover all source packets and join the parity packet transmission. Four variations of the proposed systems are considered. The first one requires complete channel information between the sender and all receivers and between all receivers to derive the optimal transmission rates for sending source and parity packets, and employs receiver feedback to determine when to terminate parity transmission. The other three suboptimal systems do not require full channel information and/or receiver feedback, and hence are more feasible in practice. All four versions can support significantly higher video rates and correspondingly higher quality of decoded video, than prior approaches in the literature, which require full channel information but not feedback.

Original languageEnglish (US)
Article number7114321
Pages (from-to)1335-1346
Number of pages12
JournalIEEE Transactions on Multimedia
Volume17
Issue number8
DOIs
StatePublished - Aug 1 2015

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Keywords

  • Incremental parity transmission
  • randomized distributed space time coding
  • user cooperation
  • video multicast

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Signal Processing
  • Media Technology
  • Computer Science Applications

Cite this

Wireless Video Multicast With Cooperative and Incremental Transmission of Parity Packets. / Guo, Zhili; Wang, Yao; Erkip, Elza; Panwar, Shivendra.

In: IEEE Transactions on Multimedia, Vol. 17, No. 8, 7114321, 01.08.2015, p. 1335-1346.

Research output: Contribution to journalArticle

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