Multiple Codebook-Based Non-Orthogonal Multiple Access

Ameha T. Abebe, Chung G. Kang

Research output: Contribution to journalArticle

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.

Original languageEnglish
Article number8957418
Pages (from-to)683-687
Number of pages5
JournalIEEE Wireless Communications Letters
Volume9
Issue number5
DOIs
Publication statusPublished - 2020 May

Keywords

  • multiple codebook NOMA (MC-NOMA)
  • Non-orthogonal multiple access (NOMA)
  • pattern division multiple access (PDMA)
  • sparse code multiple access (SCMA)

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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