Spectral and Energy Efficient Spatially Modulated Non-Orthogonal Multiple Access (NOMA) For 5G 


Vol. 40,  No. 8, pp. 1507-1514, Aug.  2015


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  Abstract

Non-orthogonal multiple access (NOMA) is a promising candidate for 5G networks. NOMA achieves superior spectral efficiency than conventional orthogonal multiple access (OMA), as in NOMA multiple users uses the same time and frequency resources. Multiple-input-multiple-output (MIMO) is one another promising technique that can enhance system performance. In this paper we present a spectral and energy efficient multiple antenna based NOMA scheme, known as spatially modulated NOMA. In the proposed scheme the cell edge users are multiplexed in spatial domain, which means the information to cell edge users is conveyed using the transmit antenna indices. In NOMA the performance of cell edge users are deeply effected as it treats signals of others as noise. The proposed scheme achieves superior spectral efficiency than the conventional NOMA. The number of decoding steps involved in decoding NOMA signal reduces by one as cell edge user is multiplexed in spatial domain. The proposed scheme is more energy efficient as compare to conventional NOMA. All of the three gains high spectral, energy efficiency and one step reduction in decoding comes at cost of multiple transmit antennas at base station.

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  Cite this article

[IEEE Style]

M. Irfan, J. W. Kim, S. Y. Shin, "Spectral and Energy Efficient Spatially Modulated Non-Orthogonal Multiple Access (NOMA) For 5G," The Journal of Korean Institute of Communications and Information Sciences, vol. 40, no. 8, pp. 1507-1514, 2015. DOI: .

[ACM Style]

Mohammad Irfan, Jin Woo Kim, and Soo Young Shin. 2015. Spectral and Energy Efficient Spatially Modulated Non-Orthogonal Multiple Access (NOMA) For 5G. The Journal of Korean Institute of Communications and Information Sciences, 40, 8, (2015), 1507-1514. DOI: .

[KICS Style]

Mohammad Irfan, Jin Woo Kim, Soo Young Shin, "Spectral and Energy Efficient Spatially Modulated Non-Orthogonal Multiple Access (NOMA) For 5G," The Journal of Korean Institute of Communications and Information Sciences, vol. 40, no. 8, pp. 1507-1514, 8. 2015.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880