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Relay-assisted rateless layered multiple description video delivery

Nazir, Sajid and Stankovic, Vladimir and Attar, Hani and Stankovic, Lina and Cheng, Samuel (2013) Relay-assisted rateless layered multiple description video delivery. IEEE Journal on Selected Areas in Communications, 31 (8). pp. 1629-1637. ISSN 0733-8716

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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.

Item type: Article
ID code: 40401
Keywords: channel modelling, FEC coding, application-layer forward error correction, two-relay LTE-A setup, multiple description coding, wireless relaying, multipath video, Electrical engineering. Electronics Nuclear engineering, Computer Networks and Communications, Electrical and Electronic Engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
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Depositing user: Pure Administrator
Date Deposited: 11 Jul 2012 16:11
Last modified: 09 May 2014 16:51
URI: http://strathprints.strath.ac.uk/id/eprint/40401

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