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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
- 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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