Title
Spherical Code Superposition NOMA and Its User Pairing Strategy
Abstract
A novel non-orthogonal multiple access (NOMA) scheme with spherical code superposition and its user pairing strategy are proposed. A transmitter transmits the superposition of the signals of two users, each of which is selected from the high dimensional spherical code on the same time-frequency resource by power-domain multiplexing NOMA. Upper bounds of the word error probabilities of the two users are derived. Based on them, a power allocation scheme for the two users is proposed, which guarantees that their word error probabilities are below a certain threshold. Under our power allocation scheme, the optimal user pairing strategy that minimizes the total power consumption in a general multi-user system is analytically found. Numerical results show that our proposed system outperforms some benchmark methods.
Year
DOI
Venue
2020
10.1109/GLOBECOM42002.2020.9322388
GLOBECOM 2020 - 2020 IEEE Global Communications Conference
Keywords
DocType
ISSN
Non-orthogonal multiple access (NOMA),spherical code,user pairing
Conference
1930-529X
ISBN
Citations 
PageRank 
978-1-7281-8299-5
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
jun zou1101.78
Kenneth W. Shum254456.37
Chi Wan Sung377991.41