TY - JOUR
T1 - A Simple Design of IRS-NOMA Transmission
AU - Ding, Zhiguo
AU - Poor, H. Vincent
PY - 2020/5/1
Y1 - 2020/5/1
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/85084934529
U2 - 10.1109/LCOMM.2020.2974196
DO - 10.1109/LCOMM.2020.2974196
M3 - Article
SN - 1089-7798
JO - IEEE Communications Letters
JF - IEEE Communications Letters
ER -