Performance analysis for transmission of correlated sources over non-orthogonal MARCs
He, Jiguang; Russain, Iqbal; Tervo, Valtteri; Juntti, Markku; Matsumoto, Tad (2016-10-20)
J. He, I. Hussain, V. Tervo, M. Juntti and T. Matsumoto, "Performance analysis for transmission of correlated sources over non-orthogonal MARCs," 2016 9th International Symposium on Turbo Codes and Iterative Information Processing (ISTC), Brest, 2016, pp. 66-70. doi: 10.1109/ISTC.2016.7593078
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https://urn.fi/URN:NBN:fi-fe2018062926677
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Abstract
Non-orthogonal transmission is considered as one of the promising approaches to improve the throughput of current and future wireless communication networks. We focus on the transmission of correlated sources over a non-orthogonal multiple access relay channel (MARC), which consists of two sources, one relay, and one destination. For non-orthogonal transmission over such networks, only two time slots are required as compared to three time slots used in the conventional orthogonal MARC. At the relay node, physical-layer network coding technique is employed to decode the bit-wise exclusive OR (XOR) version of the sources’ information sequences rather than decode their original individual information sequences. Subsequently, the relay re-encodes the decoded combined sequence and forwards it to the destination. The destination then exploits this sequence as a helper to recover the sources’ original individual information sequences. We analyze the outage probability of the non-orthogonal MARC based on the theorem of multiple access channel (MAC) with a helper, which combines Slepian-Wolf compression rate region and MAC capacity region. Simulation results are provided to verify the accuracy of the theoretical analysis.
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