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- W2912693210 abstract "A novel spreading non-orthogonal multiple access (NOMA) scheme is proposed for the future 5G communication system, which is called maximum Welch-bound spreading multiple access (MWSMA). In the transmitter, each user’s modulated symbols are spread by a complex-valued short spreading sequence and then sent simultaneously on the same frequency spectrum. We design spreading sequences via maximum-Welch-bound-equality (MWBE) to minimize the maximum cross-correlation amplitude. Theoretical analysis on cross-correlation and average mutual information (AMI) proves that the proposed MWSMA scheme is much superior to the current orthogonal frequency division multiple access (OFDMA) and two key NOMA schemes, multi-user shared access (MUSA) and sparse code multiple access (SCMA), especially for high spectral efficiency (SE). Simulation results also verify that MWSMA can achieve significant 0.8dB, 0.8dB and 3.9dB signal-to-noise-ratio (SNR) gain at target block error rate (BLER) 10−1 as compared with MUSA, SCMA and OFDMA, respectively." @default.
- W2912693210 created "2019-02-21" @default.
- W2912693210 creator A5003798053 @default.
- W2912693210 creator A5068380148 @default.
- W2912693210 date "2018-08-01" @default.
- W2912693210 modified "2023-09-26" @default.
- W2912693210 title "A Novel Non-Orthogonal Multiple Access Based On Maximum Welch Bound Equality" @default.
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- W2912693210 doi "https://doi.org/10.1109/iccchina.2018.8641086" @default.
- W2912693210 hasPublicationYear "2018" @default.
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