Dynamic Bandwidth Allocation of NOMA and OMA for 5G 


Vol. 42,  No. 12, pp. 2383-2390, Dec.  2017
10.7840/kics.2017.42.12.2383


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  Abstract

Non-orthogonal multiple access (NOMA) is proposed as a promising candidate of radio access technologies for 5G and beyond. It exploits power domain multiplexing concept to increase capacity combined with successive interference cancellation (SIC). However, there could be a compatibility issue because legacy devices cannot perform SIC which is a necessary step for applying NOMA. In this paper, we suggest a new dynamic bandwidth adjusting algorithm for NOMA to provide the backward compatibility for orthogonal multiple access (OMA). The suggested algorithm can provide backward compatibility, efficient bandwidth allocation, and robustness against imperfect SIC. To verify the performance of suggested algorithm, sum capacity is compared to OMA and NOMA. Simulations are also performed under perfect and imperfect SIC to validate the effectiveness of suggested algorithm. It is shown that the proposed algorithm has 2 bps/Hz capacity higher than OMA.

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  Cite this article

[IEEE Style]

M. H. Lee, L. C. M. Victor, S. Y. Shin, "Dynamic Bandwidth Allocation of NOMA and OMA for 5G," The Journal of Korean Institute of Communications and Information Sciences, vol. 42, no. 12, pp. 2383-2390, 2017. DOI: 10.7840/kics.2017.42.12.2383.

[ACM Style]

Man Hee Lee, Leung C. M. Victor, and Soo Young Shin. 2017. Dynamic Bandwidth Allocation of NOMA and OMA for 5G. The Journal of Korean Institute of Communications and Information Sciences, 42, 12, (2017), 2383-2390. DOI: 10.7840/kics.2017.42.12.2383.

[KICS Style]

Man Hee Lee, Leung C. M. Victor, Soo Young Shin, "Dynamic Bandwidth Allocation of NOMA and OMA for 5G," The Journal of Korean Institute of Communications and Information Sciences, vol. 42, no. 12, pp. 2383-2390, 12. 2017. (https://doi.org/10.7840/kics.2017.42.12.2383)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880