A New Design of Hybrid SIC for Improving Transmission Robustness in Uplink NOMA

Yanshi Sun, Zhiguo Ding, Xuchu Dai

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

Conventionally, it was thought that outage probability error floors are unavoidable in uplink non-orthogonal multiple access (NOMA) regardless which type of successive interference cancellation (SIC) is adopted. However, a recent work breaks such myths by introducing the concept of hybrid SIC, which dynamically chooses the decoding order according to the users' channel conditions and quality of service requirements. However, there is still a limitation in this existing work that the error floors can only be avoidable under a stringent condition on users' target rates. To this end, this letter proposes a new hybrid SIC scheme by exploiting the benefit of power control, which guarantees no error floor without any conditions on users' target rates.

Original languageBritish English
Article number9390398
Pages (from-to)5083-5087
Number of pages5
JournalIEEE Transactions on Vehicular Technology
Volume70
Issue number5
DOIs
StatePublished - May 2021

Keywords

  • Dynamic successive interference cancellation
  • error floor
  • non-orthogonal multiple access

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