Relay-assisted rateless layered multiple description video delivery

Sajid Nazir, Vladimir Stankovic, Hani Attar, Lina Stankovic, Samuel Cheng

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Multiple description coding (MDC) has been proposed as a possible solution to real-time video delivery over relay-assisted wireless networks to exploit path diversity. In this paper, we study layered multiple description video over relay-assisted mobile networks, such as LTE-A, and develop a framework that routes packets to different relays based on source-channel-relay parameters. The proposed system comprises, besides layered MDC, (i) application-layer forward error correction via Random linear codes (RLC) that are very suitable in the relaying scenarios, due to their rateless nature, (ii) unequal error protection (UEP), using the recently proposed expanding window technique, that relies on probabilistic scheduling of layered packets. We generate layered multiple descriptions using data slicing and data partitioning features of H.264/AVC and conduct simulations by modelling a two-relay LTE-A setup with the finite state Markov chain model. Simulation results show benefits of relaying with optimized routing and UEP.
LanguageEnglish
Pages1629-1637
Number of pages19
JournalIEEE Journal on Selected Areas in Communications
Volume31
Issue number8
DOIs
Publication statusPublished - 1 Aug 2013

Fingerprint

Wireless networks
Data description
Forward error correction
Markov processes
Scheduling

Keywords

  • channel modelling
  • FEC coding
  • application-layer forward error correction
  • two-relay LTE-A setup
  • multiple description coding
  • wireless relaying
  • multipath video

Cite this

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title = "Relay-assisted rateless layered multiple description video delivery",
abstract = "Multiple description coding (MDC) has been proposed as a possible solution to real-time video delivery over relay-assisted wireless networks to exploit path diversity. In this paper, we study layered multiple description video over relay-assisted mobile networks, such as LTE-A, and develop a framework that routes packets to different relays based on source-channel-relay parameters. The proposed system comprises, besides layered MDC, (i) application-layer forward error correction via Random linear codes (RLC) that are very suitable in the relaying scenarios, due to their rateless nature, (ii) unequal error protection (UEP), using the recently proposed expanding window technique, that relies on probabilistic scheduling of layered packets. We generate layered multiple descriptions using data slicing and data partitioning features of H.264/AVC and conduct simulations by modelling a two-relay LTE-A setup with the finite state Markov chain model. Simulation results show benefits of relaying with optimized routing and UEP.",
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Relay-assisted rateless layered multiple description video delivery. / Nazir, Sajid; Stankovic, Vladimir; Attar, Hani; Stankovic, Lina; Cheng, Samuel.

In: IEEE Journal on Selected Areas in Communications, Vol. 31, No. 8, 01.08.2013, p. 1629-1637.

Research output: Contribution to journalArticle

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