An Examination of Outage Performance for Selected Relay and Fixed Relay in Cognitive Radio-Aided NOMA

  • Tam Nguyen KieuEmail author
  • Hong Nhu Nguyen
  • Long Nguyen Ngoc
  • Tu-Trinh Thi Nguyen
  • Jaroslav Zdralek
  • Miroslav Voznak
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 554)


In this paper, we consider impacts of relay selection scheme on primary network performance in cognitive radio (CR) assisted non-orthogonal multiple access (NOMA). We suggest relay selection model to improve the outage performance at primary network. In this model, the fixed power allocation in NOMA is deployed to achieve considered simulation results. To completely study the profits of the NOMA scheme, we derive closed-form formula for the outage probability. We find that the CR-NOMA enhances its performance as suitable selection of relay intending to forward signal to NOMA users. It is shown several performance comparison in such CR-NOMA as varying the target rates at relay and destination. Numerical results are extensively studied to confirm that our proposed CR-NOMA outperforms the other designs in terms of outage probability.


Non-orthogonal multiple access (NOMA) Decode-and-forward (DF) Primary network Outage probability 



This research received funding from the grant No. SP2018/59 conducted by VSB-Technical University of Ostrava, Czech Republic.


  1. 1.
    Ding, Z., Liu, Y., Choi, J., Sun, Q., Elkashlan, M., Poor, H.V.: Application of non-orthogonal multiple access in LTE and 5G networks. IEEE Commun. Mag. 55(2), 185–191 (2017)CrossRefGoogle Scholar
  2. 2.
    Ding, Z., Peng, M., Poor, H.V.: Cooperative non-orthogonal multiple access in 5G systems. IEEE Commun. Lett. 19(8), 1462–1465 (2015)CrossRefGoogle Scholar
  3. 3.
    Ding, Z., Dai, H., Poor, H.V.: Relay selection for cooperative NOMA. IEEE Commun. Lett. 5(4), 416–419 (2016)CrossRefGoogle Scholar
  4. 4.
    Kim, J.B., Lee, I.H.: Capacity analysis of cooperative relaying systems using non-orthogonal multiple access. IEEE Commun. Lett. 19(11), 1949–1952 (2015)CrossRefGoogle Scholar
  5. 5.
    Kader, M., Shahab, M., Shin, S.: Exploiting non-orthogonal multiple access in cooperative relay sharing. IEEE Commun. LettGoogle Scholar
  6. 6.
    Al-Imari, M., Xiao, P., Imran, M.A., Tafazolli, R.: Uplink nonorthogonal multiple access for 5G wireless networks. In: Proceedings of 11th International Symposium Wireless Communications Systems (ISWCS), pp. 781-785, August 2014Google Scholar
  7. 7.
    Ding, Z., Fan, P., Poor, V.C.: Impact of user pairing on 5G nonorthogonal multiple-access downlink transmissions. IEEE Trans. Veh. Technol. 65(8), 6010–6023 (2016)CrossRefGoogle Scholar
  8. 8.
    Yang, Z., Ding, Z., Fan, P., Al-Dhair, N.: A general power allocation scheme to guarantee quality of service in downlink and uplink NOMA system. IEEE Trans. Wirel. Commun. 15(11), 7244–7257 (2016)CrossRefGoogle Scholar
  9. 9.
    Timotheou, S., Krikidis, I.: Fairness for non-orthogonal multiple access in 5G systems. IEEE Sig. Process. Lett. 22(10), 1647–1651 (2015)CrossRefGoogle Scholar
  10. 10.
    Nguyen, T.T., Pham, M.-N., Do, D.-T.: Wireless powered underlay cognitive radio network with multiple primary transceivers: energy constraint, node arrangement and energy harvesting policies. Int. J. Commun. Syst. (Wiley) 30(18), e3372 (2017)Google Scholar
  11. 11.
    Pham, M.-N., Do, D.-T., Nguyen, T.-T., Phu, T.-T.: Energy harvesting assisted cognitive radio: random location-based transceivers scheme and performance analysis. Telecommun. Syst. 67(1), 123–132 (2018)Google Scholar
  12. 12.
    Zheng, G., Ho, Z., Jorswieck, E.A., Ottersten, B.: Information and energy cooperation in cognitive radio networks. IEEE Trans. Sig. Process. 69(2), 2290–2303 (2014)MathSciNetCrossRefGoogle Scholar
  13. 13.
    Nguyen, T.-L., Do, D.-T.: A new look at AF two-way relaying networks: energy harvesting architecture and impact of co-channel interference. Ann. Telecommun. 72(11), 669–678 (2017)Google Scholar
  14. 14.
    Do, D.-T., Nguyen, H.-S.: A tractable approach to analyze the energy-aware two-way relaying networks in presence of co-channel interference. EURASIP J. Wirel. Commun. Netw. 2016, 271 (2016)CrossRefGoogle Scholar
  15. 15.
    Nguyen, H.-S., Bui, A.-H., Do, D.-T., Voznak, M.: Imperfect channel state information of AF and DF energy harvesting cooperative networks. China Commun. 13(10), 11–19 (2016)CrossRefGoogle Scholar
  16. 16.
    Nguyen, K.T., Do, D.-T., Nguyen, X.X., Nguyen, N.T., Ha, D.H.: Wireless information and power transfer for full duplex relaying networks: performance analysis. In: Proceeding of Recent Advances in Electrical Engineering and Related Sciences (AETA 2015), HCMC, Vietnam, pp. 53–62 (2015)Google Scholar
  17. 17.
    Zheng, Y., et al.: Novel relay selection strategies for cooperative NOMA. IEEE Trans. Veh. Technol. 66(11), 10114–10123 (2017)CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Tam Nguyen Kieu
    • 1
    • 2
    Email author
  • Hong Nhu Nguyen
    • 1
  • Long Nguyen Ngoc
    • 1
  • Tu-Trinh Thi Nguyen
    • 3
  • Jaroslav Zdralek
    • 1
  • Miroslav Voznak
    • 1
  1. 1.VSB-Technical University of OstravaOstravaCzech Republic
  2. 2.Ton Duc Thang UniversityHo Chi Minh CityVietnam
  3. 3.Faculty of Electronics TechnologyIndustrial University of Ho Chi Minh CityHo Chi Minh CityVietnam

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