TY - JOUR
T1 - Uplink Achievable Rate of Intelligent Reflecting Surface-Aided Millimeter-Wave Communications with Low-Resolution ADC and Phase Noise
AU - Zhi, Kangda
AU - Pan, Cunhua
AU - Ren, Hong
AU - Wang, Kezhi
PY - 2021/3/9
Y1 - 2021/3/9
N2 - In this letter, we derive the uplink achievable rate expression of intelligent reflecting surface (IRS)-aided millimeter-wave (mmWave) systems, taking into account the phase noise at IRS and the quantization error at base stations (BSs). We show that the performance is limited only by the resolution of analog-digital converters (ADCs) at BSs when the number of IRS reflectors grows without bound. On the other hand, if BSs have ideal ADCs, the performance loss caused by IRS phase noise is constant. Finally, our results validate the feasibility of using low-precision hardware at the IRS when BSs are equipped with low-resolution ADCs.
AB - In this letter, we derive the uplink achievable rate expression of intelligent reflecting surface (IRS)-aided millimeter-wave (mmWave) systems, taking into account the phase noise at IRS and the quantization error at base stations (BSs). We show that the performance is limited only by the resolution of analog-digital converters (ADCs) at BSs when the number of IRS reflectors grows without bound. On the other hand, if BSs have ideal ADCs, the performance loss caused by IRS phase noise is constant. Finally, our results validate the feasibility of using low-precision hardware at the IRS when BSs are equipped with low-resolution ADCs.
KW - hardware impairment
KW - Intelligent reflecting surface
KW - low-resolution ADC
KW - phase noise
KW - reconfigurable intelligent surface
UR - http://www.scopus.com/inward/record.url?scp=85098796057&partnerID=8YFLogxK
U2 - 10.1109/LWC.2020.3044989
DO - 10.1109/LWC.2020.3044989
M3 - Article
AN - SCOPUS:85098796057
VL - 10
SP - 654
EP - 658
JO - IEEE Wireless Communications Letters
JF - IEEE Wireless Communications Letters
SN - 2162-2337
IS - 3
M1 - 9295369
ER -