Joint non-binary LDPC-BICM and network coding with iterative decoding for the multiple access relay channel

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URI: https://hdl.handle.net/11556/2312
ISSN: 1550-2252
ISBN: 9781424483310
DOI: 10.1109/VETECS.2011.5956367
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2011
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Abstract
In this paper we present a novel joint network-channel coding scheme for the time-division Multiple Access Relay Channel (MARC), which combines Bit-Interleaved Coded Modulation with iterative decoding (BICM-ID) based on nonbinary Low-Density Parity Check (LDPC) codes, along with the linear combination of blocks of data at the relay. The common receiver iteratively exchanges soft information between a joint soft demapper and the LDPC decoder associated to the transmitting nodes. The performance of the proposed system is compared, in terms of Frame Error Rate (FER) and through intensive Monte Carlo simulations, with the corresponding theoretical outage rate for different values of the spectral efficiency ρs of the overall setup. Two main conclusions are drawn: 1) small FER degradation is obtained as ρs increases; and 2) no diversity is lost with respect to the theoretical outage rate.
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Computer Science Applications , Electrical and Electronic Engineering , Applied Mathematics
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Hernaez , M , Crespo , P M & Del Ser , J 2011 , Joint non-binary LDPC-BICM and network coding with iterative decoding for the multiple access relay channel . in 2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring - Proceedings . , 5956367 , IEEE Vehicular Technology Conference , 2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring , Budapest , Hungary , 15/05/11 . https://doi.org/10.1109/VETECS.2011.5956367
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