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Multiple Codebook-Based Non-Orthogonal Multiple Access

Authors
Tsegaye, Ameha T.Kang, Chung G.
Issue Date
5월-2020
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Keywords
NOMA; OFDM; Interference; Encoding; Receivers; Signal to noise ratio; Transmitters; Non-orthogonal multiple access (NOMA); multiple codebook NOMA (MC-NOMA); sparse code multiple access (SCMA); pattern division multiple access (PDMA)
Citation
IEEE WIRELESS COMMUNICATIONS LETTERS, v.9, no.5, pp.683 - 687
Indexed
SCIE
SCOPUS
Journal Title
IEEE WIRELESS COMMUNICATIONS LETTERS
Volume
9
Number
5
Start Page
683
End Page
687
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/56215
DOI
10.1109/LWC.2020.2965939
ISSN
2162-2337
Abstract
Observing that employing a single codebook (CB) per user transmission block in the conventional CB-based non-orthogonal multiple access (NOMA) schemes doesn't exploit code and interference diversity and has limitations in some unfavorable channel conditions, this letter presents multiple CB-based NOMA (MC-NOMA) in which multiple CBs are employed by a user in a round robin manner. Performance of schemes such as sparse code multiple access (SCMA) and pattern division multiple access (PDMA) is improved by MC-NOMA without incurring any additional receiver complexity and loss in spectral efficiency. Furthermore, to fully exploit code and interference diversity for MC-NOMA, CBs assignment algorithm is presented.
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Kang, Chung Gu
공과대학 (전기전자공학부)
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