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http://dx.doi.org/10.7236/IJASC.2022.11.1.36

Performance Analysis for Weaker Channel User in Non-Uniform Source SSC NOMA with Novel BTS  

Chung, Kyuhyuk (Department of Software Science, Dankook University)
Publication Information
International journal of advanced smart convergence / v.11, no.1, 2022 , pp. 36-41 More about this Journal
Abstract
Recently, to improve the performance of the strongest channel gain user in non-orthogonal multiple access (NOMA) with a non-uniform source and symmetric superposition coding (SSC), a novel bit-to-symbol (BTS) mapping have been proposed. However, only the performance of the user with the stronger channel gain was analyzed. Thus, we compare the bit-error rate (BER) of the new BTS scheme with that of uniform sources, especially for the user with weakest channel gain. First, we show that the performance of the novel BTS scheme for the user with weakest channel gain also improves, compared to that of the uniform sources. Furthermore, the signal-to-noise (SNR) gain of the new BTS scheme over the uniform sourcesis calculated. As a consequence, the novel BTS scheme would improve the performance of the user with weakest channel gain as well as that with the stronger channel gain for SSC NOMA with a non-uniform source.
Keywords
NOMA; SSC; Lempel-Ziv coding; Superposition coding; Power allocation;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
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