Scheduling and resource allocation for SVC streaming over OFDM downlink systems

Xin Ji, Jianwei Huang, Mung Chiang, Gauthier Lafruit, Francky Catthoor

Research output: Contribution to journalArticle

58 Scopus citations

Abstract

We consider the problem of scheduling and resource allocation for multiuser video streaming over downlink orthogonal frequency division multiplexing (OFDM) channels. The video streams are precoded using the scalable video coding (SVC) scheme that offers both quality and temporal scalabilities. The OFDM technology provides the flexibility of resource allocation in terms of time, frequency, and power. We propose a gradient-based scheduling and resource allocation algorithm, which prioritizes the transmissions of different users by considering video contents, deadline requirements, and transmission history. Simulation results show that the proposed algorithm outperforms the content-blind and deadline-blind algorithms with a gain of as much as 6 dB in terms of average PSNR when the network is congested.

Original languageEnglish (US)
Article number5159406
Pages (from-to)1549-1555
Number of pages7
JournalIEEE Transactions on Circuits and Systems for Video Technology
Volume19
Issue number10
DOIs
StatePublished - Oct 2009

All Science Journal Classification (ASJC) codes

  • Media Technology
  • Electrical and Electronic Engineering

Keywords

  • Multiuser
  • OFDM
  • Resource allocation
  • SVC
  • Video streaming

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