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http://dx.doi.org/10.13067/JKIECS.2021.16.4.585

Non-interfering Non-orthogonal Multiple Access: With Application to Improving BER of Weakest Channel User in 3-User 2PAM  

Chung, Kyu-Hyuk (Dept. Software Science, Dankook University)
Publication Information
The Journal of the Korea institute of electronic communication sciences / v.16, no.4, 2021 , pp. 585-590 More about this Journal
Abstract
This paper proposes a 3-user non-interfering binary pulse amplitude modulation(2PAM) and non-orthogonal multiple access(NOMA) scheme, to improve the bit-error rate(BER) performance of the weakest channel user with the tolerable BER loss of the stronger channel users. First, we design the 3-user non-interfering 2PAM NOMA, and then derive the closed-form expressions for the BERs of the proposed scheme. Numerical results are also presented to demonstrate that the BER of the weakest channel user improves greatly, with the small BER losses of the stronger channel users. As a result, the non-interfering 2PAM could be considered in NOMA of 5G systems.
Keywords
NOMA; User Fairness; 5G; Superposition Coding; Successive Interference Cancellation; Power Allocation;
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