Journal of Information Processing Systems

Korea Information Processing Society (한국정보처리학회)
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Achievable Rate Analysis for Opportunistic Non-orthogonal Multiple Access-Based Cooperative Relaying Systems

  • Lee, In-Ho (Dept. of Electrical, Electronic and Control Engineering and IITC, Hankyong National University) ;
  • Lee, Howon (Dept. of Electrical, Electronic and Control Engineering and IITC, Hankyong National University)
  • Received : 2017.02.23
  • Accepted : 2017.05.30
  • Published : 2017.06.30
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Abstract

In this paper, we propose the opportunistic non-orthogonal multiple access (NOMA)-based cooperative relaying system (CRS) with channel state information (CSI) available at the source, where CSI for the source-to-destination and source-to-relay links is used for opportunistic transmission. Using the CSI, for opportunistic transmission, the source instantaneously chooses between the direct transmission and the cooperative NOMA transmission. We provide an asymptotic expression for the average achievable rate of the opportunistic NOMA-based CRS under Rayleigh fading channels. We verify the asymptotic analysis through Monte Carlo simulations, and compare the average achievable rates of the opportunistic NOMA-based CRS and the conventional one for various channel powers and power allocation coefficients used for NOMA.

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References

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