A simple design of IRS-NOMA transmission

Zhiguo Ding; H. Vincent Poor

doi:10.1109/LCOMM.2020.2974196

A simple design of IRS-NOMA transmission

Zhiguo Ding, H. Vincent Poor

Research output: Contribution to journal › Article › peer-review

272 Scopus citations

Abstract

This letter proposes a simple design of intelligent reflecting surface (IRS) assisted non-orthogonal multiple access (NOMA) downlink transmission. In particular, conventional spatial division multiple access (SDMA) is used first at the base station to generate orthogonal beams by using the spatial directions of the near users' channels. Then, IRS-assisted NOMA is used to ensure that additional cell-edge users can also be served on these beams by aligning the cell-edge users' effective channel vectors with the predetermined spatial directions. Both analytical and simulation results are provided to demonstrate the performance of the proposed IRS-NOMA scheme and also study the impact of hardware impairments on IRS-NOMA.

Original language	English (US)
Article number	9000593
Pages (from-to)	1119-1123
Number of pages	5
Journal	IEEE Communications Letters
Volume	24
Issue number	5
DOIs	https://doi.org/10.1109/LCOMM.2020.2974196
State	Published - May 2020

All Science Journal Classification (ASJC) codes

Modeling and Simulation
Computer Science Applications
Electrical and Electronic Engineering

Keywords

Non-orthogonal multiple access (NOMA)
diversity order
intelligent reflecting surface (IRS)
phase shifting design

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10.1109/LCOMM.2020.2974196

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title = "A simple design of IRS-NOMA transmission",

abstract = "This letter proposes a simple design of intelligent reflecting surface (IRS) assisted non-orthogonal multiple access (NOMA) downlink transmission. In particular, conventional spatial division multiple access (SDMA) is used first at the base station to generate orthogonal beams by using the spatial directions of the near users' channels. Then, IRS-assisted NOMA is used to ensure that additional cell-edge users can also be served on these beams by aligning the cell-edge users' effective channel vectors with the predetermined spatial directions. Both analytical and simulation results are provided to demonstrate the performance of the proposed IRS-NOMA scheme and also study the impact of hardware impairments on IRS-NOMA.",

keywords = "Non-orthogonal multiple access (NOMA), diversity order, intelligent reflecting surface (IRS), phase shifting design",

author = "Zhiguo Ding and {Vincent Poor}, H.",

note = "Funding Information: Manuscript received November 18, 2019; revised December 20, 2019 and February 3, 2020; accepted February 9, 2020. Date of publication February 17, 2020; date of current version May 8, 2020. Z. Ding{\textquoteright}s work was supported by the U.K. EPSRC under Grant EP/P009719/2, and in part by H2020-MSCA-RISE-2015 under Grant 690750. H. V. Poor{\textquoteright}s work was supported by the U.S. National Science Foundation under Grant CCF-1908308. The associate editor coordinating the review of this letter and approving it for publication was Q. Wu. (Corresponding author: Zhiguo Ding.) Zhiguo Ding is with the Department of Electrical Engineering, Princeton University, Princeton, NJ 08544 USA, and also with the Department of Electrical and Electronic Engineering, The University of Manchester, Manchester M13 9PL, U.K. (e-mail: zhiguo.ding@manchester.ac.uk). Publisher Copyright: {\textcopyright} 1997-2012 IEEE.",

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A simple design of IRS-NOMA transmission

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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