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Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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Orthogonal NOMA Strong Channel User Capacity: Zero Power Non-Zero Capacity Transmission

  • Received : 2019.05.16
  • Accepted : 2019.06.24
  • Published : 2019.06.30
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Abstract

Recently, orthogonal non-orthogonal multiple access (O NOMA) with polar on-off keying (POOK) has been proposed to mitigate the severe effect of the superposition. However, it is observed that the performance of the O NOMA strong channel user is better than that of the perfect successive interference cancellation (SIC), i.e., the performance of a single user transmission with binary phase shift keying (BPSK). Can the performance of the BPSK modulation be better that that of itself? It is not normal. It should be clearly understood theoretically, with the ultimate bound, i.e., the channel capacity. This paper proves that the channel capacity of the O NOMA strong channel user is non-zero with zero power allocation. Thus, it is shown that the interference is transformed effectively into the meaningful signal.

Keywords

JGGJB@_2019_v23n2_735_f0001.png 이미지

Fig. 1. System and Channel Model.

JGGJB@_2019_v23n2_735_f0002.png 이미지

Fig. 2. Polar on-off keying and BPSK.

JGGJB@_2019_v23n2_735_f0003.png 이미지

Fig. 3. Capacities of perfect SIC NOMA and O NOMA for the user-1.

References

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Cited by

  1. On Power of Correlated Superposition Coding in NOMA vol.24, pp.1, 2019, https://doi.org/10.7471/ikeee.2020.24.1.360