Meta Distribution of Downlink Non-Orthogonal Multiple Access (NOMA) in Poisson Networks

We study the meta distribution (MD) of the coverage probability (CP) in downlink non-orthogonal-multiple-access (NOMA) networks. Two schemes are assessed based on the location of the NOMA users: 1) anywhere in the network and 2) cell-center users only. The moments of the MD for both schemes are deri...

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Bibliographic Details
Published in:IEEE wireless communications letters 2019-04, Vol.8 (2), p.572-575
Main Authors: Ali, Konpal, Elsawy, Hesham, Alouini, Mohamed-Slim
Format: Article
Language:English
Subjects:
Beta
Decoding
Downlink
Fading channels
Interference
meta distribution
NOMA
non-orthogonal multiple access (NOMA)
Nonorthogonal multiple access
Probability distribution functions
Silicon carbide
STEM
Stochastic geometry
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Summary:We study the meta distribution (MD) of the coverage probability (CP) in downlink non-orthogonal-multiple-access (NOMA) networks. Two schemes are assessed based on the location of the NOMA users: 1) anywhere in the network and 2) cell-center users only. The moments of the MD for both schemes are derived and the MD is approximated via the beta distribution. Closed-form moments are derived for the first scheme; for the second scheme exact and approximate moments, to simplify the integral calculation, are derived. We show that restricting NOMA to cell-center users provides significantly higher mean, lower variance and better percentile performance for the CP.
ISSN:2162-2337
2162-2345
DOI:10.1109/LWC.2018.2880210