The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Non-interfering Non-orthogonal Multiple Access: With Application to Improving BER of Weakest Channel User in 3-User 2PAM

비간섭 비직교 다중접속: 삼중 2PAM의 최약 채널 사용자의 BER 향상 관점에서

  • 정규혁 (단국대학교 소프트웨어학과)
  • Received : 2021.06.05
  • Accepted : 2021.08.17
  • Published : 2021.08.31
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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.

본 논문은 수용 가능한 강 채널 사용자들의 BER 손실로, 최약 채널 사용자의 BER 성능을 향상하기 위하여, 3명의 사용자의 비간섭 비직교 다중 접속을 제안한다. 먼저, 3명의 사용자의 비간섭 비직교 다중 접속을 설계하고, 제안된 기법의 BER의 폐쇄형 표현 식을 유도한다. 다음, 수치적 결과를 통해, 적은 강 채널 사용자들의 BER 손실로, 최약 채널 사용자의 BER 성능이 크게 향상되는 것을 입증한다. 결론적으로, 비간섭 2PAM은 5G 시스템의 비직교 다중접속에서 고려될 수도 있다.

Keywords

References

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