Serially-concatenated LDGM codes for correlated sources over gaussian broadcast channels

Mikel Hernaez; Pedro Crespo; Javier Del Ser; Javier Garcia-Frias

doi:10.1109/LCOMM.2009.091289

Serially-concatenated LDGM codes for correlated sources over gaussian broadcast channels

Mikel Hernaez^*
, Pedro Crespo
, Javier Del Ser
, Javier Garcia-Frias

^*Autor correspondiente de este trabajo

IA

University of Delaware

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

4 Citas (Scopus)

Resumen

We propose a superposition scheme, based on the use of serially-concatenated LDGM codes, for the transmission of spatially correlated sources over Gaussian broadcast channels. The messages intended for each receiver are independently encoded using the same code. In this manner, a strong degree of correlation is kept between the encoded sequences,which are then modulated with different energies and symbolwise added. By properly designing the encoding process, simulation results show that our proposed scheme easily outperforms the suboptimal theoretical limit assuming separation between source and channel coding.

Idioma original	Inglés
Páginas (desde-hasta)	788-790
Número de páginas	3
Publicación	IEEE Communications Letters
Volumen	13
N.º	10
DOI	https://doi.org/10.1109/LCOMM.2009.091289
Estado	Publicada - 2009

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10.1109/LCOMM.2009.091289

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Erratum: Serially-concatenated LDGM codes for correlated sources over Gaussian broadcast channels (IEEE Communications Letters (2009) 13:10 (788-790))
Hernaez, M., Crespo, P., Ser, J. D. & Garcia-Frias, J., mar 2010, En: IEEE Communications Letters. 14, 3, p. 235 1 p., 5426593.
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abstract = "We propose a superposition scheme, based on the use of serially-concatenated LDGM codes, for the transmission of spatially correlated sources over Gaussian broadcast channels. The messages intended for each receiver are independently encoded using the same code. In this manner, a strong degree of correlation is kept between the encoded sequences,which are then modulated with different energies and symbolwise added. By properly designing the encoding process, simulation results show that our proposed scheme easily outperforms the suboptimal theoretical limit assuming separation between source and channel coding.",

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AB - We propose a superposition scheme, based on the use of serially-concatenated LDGM codes, for the transmission of spatially correlated sources over Gaussian broadcast channels. The messages intended for each receiver are independently encoded using the same code. In this manner, a strong degree of correlation is kept between the encoded sequences,which are then modulated with different energies and symbolwise added. By properly designing the encoding process, simulation results show that our proposed scheme easily outperforms the suboptimal theoretical limit assuming separation between source and channel coding.

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Serially-concatenated LDGM codes for correlated sources over gaussian broadcast channels

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Erratum: Serially-concatenated LDGM codes for correlated sources over Gaussian broadcast channels (IEEE Communications Letters (2009) 13:10 (788-790))

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