RT Journal Article
T1 Serially-concatenated LDGM codes for correlated sources over gaussian broadcast channels
A1 Hernaez, Mikel
A1 Crespo, Pedro
A1 Del Ser, Javier
A1 Garcia-Frias, Javier
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.
SN 1089-7798
YR 2009
FD 2009
LK https://hdl.handle.net/11556/3155
UL https://hdl.handle.net/11556/3155
LA eng
NO Hernaez , M , Crespo , P , Del Ser , J & Garcia-Frias , J 2009 , ' Serially-concatenated LDGM codes for correlated sources over gaussian broadcast channels ' , IEEE Communications Letters , vol. 13 , no. 10 , pp. 788-790 . https://doi.org/10.1109/LCOMM.2009.091289
NO ACKNOWLEDGMENT This work was supported in part by the Spanish Ministry of Science and Innovation through the CONSOLIDER-INGENIO 2010 programme (CSD200800010, www.comonsens.org).
DS TECNALIA Publications
RD 31 jul 2024