A protection scheme for multimedia packet streams in bursty packet loss networks based on small block low-density parity-check codes

Casu, Filippo; Cabrera Quesada, Julian; Jaureguizar Núñez, Fernando y García Santos, Narciso (2015). A protection scheme for multimedia packet streams in bursty packet loss networks based on small block low-density parity-check codes. "EURASIP Journal on Wireless Communications and Networking" (n. 187); pp. 1-14. ISSN 1687-1499. https://doi.org/10.1186/s13638-015-0402-6.

Descripción

Título: A protection scheme for multimedia packet streams in bursty packet loss networks based on small block low-density parity-check codes
Autor/es:
  • Casu, Filippo
  • Cabrera Quesada, Julian
  • Jaureguizar Núñez, Fernando
  • García Santos, Narciso
Tipo de Documento: Artículo
Título de Revista/Publicación: EURASIP Journal on Wireless Communications and Networking
Fecha: 2015
Materias:
Palabras Clave Informales: Multimedia communications; Time-sensitive services; Real time; Forward error correction; LDPC; LDGM; Bursty channels; Small block codes
Escuela: E.T.S.I. Telecomunicación (UPM)
Departamento: Señales, Sistemas y Radiocomunicaciones
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

This paper proposes an enhanced forward error correction (FEC) scheme based on small block low-density parity-check (LDPC) codes to protect real-time packetized multimedia streams in bursty channels. The use of LDPC codes is typically addressed for channels where losses are uniformly distributed (memoryless channels) and for large information blocks. This work suggests the use of this type of FEC codes at the application layer, in bursty channels (e.g., Internet protocol (IP)-based networks) and for real-time scenarios that require low transmission latency. To fulfil these constraints, the appropriate configuration parameters of an LDPC scheme have been determined using small blocks of information and adapting the FEC code to be capable of recovering packet losses in bursty environments. This purpose is achieved in two steps. The first step is performed by an algorithm that estimates the recovery capability of a given LDPC code in a burst packet loss network. The second step is the optimization of the code: an algorithm optimizes the parity matrix structure in terms of recovery capability against the specific behavior of the channel with memory. Experimental results have been obtained in a simulated transmission channel to show that the optimized LDPC matrices generate a more robust protection scheme against bursty packet losses for small information blocks.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Gobierno de EspañaTEC2010-20412Sin especificarSin especificarAñadiendo percepción de profundidad a las comunicaciones visuales (enhanced 3dtv)
Gobierno de EspañaIPT-2012-0306-430000RECOPUBLISin especificarRed Cooperativa e interactiva de PUBLIcidad digital dotada de sistemas de gestión de medios
Gobierno de EspañaTEC2013-48453-C2-2-RSin especificarSin especificarMixed reality over ultra high definition television

Más información

ID de Registro: 41379
Identificador DC: http://oa.upm.es/41379/
Identificador OAI: oai:oa.upm.es:41379
Identificador DOI: 10.1186/s13638-015-0402-6
URL Oficial: http://jwcn.eurasipjournals.springeropen.com/articles/10.1186/s13638-015-0402-6
Depositado por: Memoria Investigacion
Depositado el: 20 Jul 2016 19:00
Ultima Modificación: 20 Jul 2016 19:00
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