On the impact of phase shifting designs on IRS-NOMA

Zhiguo Ding, Robert Schober, H. Vincent Poor

Research output: Contribution to journalArticlepeer-review

157 Scopus citations


In this letter, the impact of two phase shifting designs, namely coherent phase shifting and random discrete phase shifting, on the performance of intelligent reflecting surface (IRS) assisted non-orthogonal multiple access (NOMA) is studied. Analytical and simulation results are provided to show that the two designs achieve different tradeoffs between reliability and complexity. To further improve the reception reliability of the random phase shifting design, a low-complexity phase selection scheme is also proposed in this letter.

Original languageEnglish (US)
Article number9079918
Pages (from-to)1596-1600
Number of pages5
JournalIEEE Wireless Communications Letters
Issue number10
StatePublished - Oct 2020
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


  • Non-orthogonal multiple access (NOMA)
  • intelligent reflecting surface (IRS)
  • phase shifting designs

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