Matches in SemOpenAlex for { <https://semopenalex.org/work/W2783190670> ?p ?o ?g. }
- W2783190670 abstract "Non-orthogonal multiple access (NOMA) is important in 5G, and the users served in NOMA are often paired to avoid the excessive interference. However, for a two-user network, if the channel condition of one user is serious, this network may require the other user to relay this user's signals. In this case, the demands of these users are possibly different. Specifically, the relay user may want the node to increase the spectral efficiency for compensating the cost of relay. On the other hand, because privacy information may be contained in signals, the indirect communication user may primarily focus on his or her information security. Therefore, we propose a novel physical layer scheme to satisfy these demands. Different from the existing relay schemes in NOMA, our scheme has the following characteristics: (i) through power allocation, the relay user can extract his or her signals with spectral efficiency improvement; (ii) through a signal-level method, the relay user can forward the indirect communication user's signals, but he or she is difficult to learn the privacy information in these signals; (iii) through a mechanism, the indirect communication user can attain his or her privacy information. Our scheme is able to support the relay user's demand, and this eavesdropping suppression in our scheme doe not depend on the complicated encryption techniques and positive secrecy rate." @default.
- W2783190670 created "2018-01-26" @default.
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- W2783190670 date "2017-12-01" @default.
- W2783190670 modified "2023-10-16" @default.
- W2783190670 title "Design for NOMA: Combat Eavesdropping and Improve Spectral Efficiency in the Two-User Relay Network" @default.
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- W2783190670 doi "https://doi.org/10.1109/glocom.2017.8254022" @default.
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