Publication: Accurate spectral efficiency analysis for non orthogonal multiple access
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Issued Date
2017-03-29
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ISSN
17389445
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2-s2.0-85017685401
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Mahidol University
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SCOPUS
Bibliographic Citation
International Conference on Advanced Communication Technology, ICACT. (2017), 844-850
Suggested Citation
Pongsatorn Sedtheetorn, Tatcha Chulajata Accurate spectral efficiency analysis for non orthogonal multiple access. International Conference on Advanced Communication Technology, ICACT. (2017), 844-850. doi:10.23919/ICACT.2017.7890235 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/42571
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Title
Accurate spectral efficiency analysis for non orthogonal multiple access
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Abstract
© 2017 Global IT Research Institute - GiRI. This paper presents theoretical analysis on non-orthogonal multiple access (NOMA) for both downlink and uplink communications. Based on accurate evaluation, we propose closed-form expressions of NOMA downlink and uplink spectral efficiency. In terms of channel modelling, we map the channel conditions with Nakagami and Rayleigh models in which both line-of-sight and non-line-of-sight are included. For uplink transmission, we extend our work to the case of random active users. The random nature is matched to appropriate probability models. These make our presented expressions very comprehensive and benefit us to study the impacts of channel conditions, random number of users, and other key system parameters on the NOMA spectral efficiency.