On the Impact of Phase Shifting Designs on IRS-NOMA
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Open Access
- 28 April 2020
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Wireless Communications Letters
- Vol. 9 (10), 1596-1600
- https://doi.org/10.1109/lwc.2020.2991116
Abstract
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 the paper.Keywords
Funding Information
- U.K. Engineering and Physical Sciences Research Council (EP/P009719/2)
- U.S. National Science Foundation (CCF-1908308)
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