Journal
IEEE WIRELESS COMMUNICATIONS LETTERS
Volume 9, Issue 10, Pages 1596-1600Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LWC.2020.2991116
Keywords
Power system reliability; Probability; NOMA; Upper bound; Reliability; Complexity theory; Fading channels; Non-orthogonal multiple access (NOMA); intelligent reflecting surface (IRS); phase shifting designs
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Funding
- U.K. Engineering and Physical Sciences Research Council [EP/P009719/2]
- U.S. National Science Foundation [CCF-1908308]
- EPSRC [EP/P009719/2] Funding Source: UKRI
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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.
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