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Transmission of correlated sources over non-orthogonal Gaussian MACs

He, Jiguang; Hussain, Iqbal; Juntti, Markku; Matsumoto, Tad (2016-07-07)

 
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https://doi.org/10.1109/ICCW.2016.7503842

He, Jiguang
Hussain, Iqbal
Juntti, Markku
Matsumoto, Tad
Institute of Electrical and Electronics Engineers
07.07.2016

Jiguang He, I. Hussain, M. Juntti and T. Matsumoto, "Transmission of correlated sources over non-orthogonal Gaussian MACs," 2016 IEEE International Conference on Communications Workshops (ICC), Kuala Lumpur, 2016, pp. 534-539. doi: 10.1109/ICCW.2016.7503842

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doi:https://doi.org/10.1109/ICCW.2016.7503842
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https://urn.fi/URN:NBN:fi-fe2018070527070
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Abstract

We investigate the transmission of multiple correlated binary sources to a single destination over non-orthogonal Gaussian multiple access channels (MACs). By considering a binary codebook, we derive the admissible rate regions of the two-source Gaussian MAC. It is demonstrated that the admissible rate region increases as the correlation between the sources increases. Furthermore, we develop an iterative joint source channel decoding scheme based on systematic irregular low-density parity-check codes by exploiting the correlation between the two sources. The constituent decoders corresponding to each source are implemented in parallel via local iterations, exchanging extrinsic information with each other during the global iterations. Simulation results are provided to verify the performance improvement of the transmission of correlated sources compared to its independent sources counterpart.

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