CLC number: TN926
On-line Access: 2024-01-26
Received: 2023-02-28
Revision Accepted: 2024-01-26
Crosschecked: 2023-08-20
Cited: 0
Clicked: 570
Citations: Bibtex RefMan EndNote GB/T7714
Miaoran PENG, Jinhao KAN, Lixia XIAO, Guanghua LIU, Tao JIANG. Digital-to-analog converter free architecture for digital reconfigurable intelligent surface[J]. Frontiers of Information Technology & Electronic Engineering, 2023, 24(12): 1752-1762.
@article{title="Digital-to-analog converter free architecture for digital reconfigurable intelligent surface",
author="Miaoran PENG, Jinhao KAN, Lixia XIAO, Guanghua LIU, Tao JIANG",
journal="Frontiers of Information Technology & Electronic Engineering",
volume="24",
number="12",
pages="1752-1762",
year="2023",
publisher="Zhejiang University Press & Springer",
doi="10.1631/FITEE.2300133"
}
%0 Journal Article
%T Digital-to-analog converter free architecture for digital reconfigurable intelligent surface
%A Miaoran PENG
%A Jinhao KAN
%A Lixia XIAO
%A Guanghua LIU
%A Tao JIANG
%J Frontiers of Information Technology & Electronic Engineering
%V 24
%N 12
%P 1752-1762
%@ 2095-9184
%D 2023
%I Zhejiang University Press & Springer
%DOI 10.1631/FITEE.2300133
TY - JOUR
T1 - Digital-to-analog converter free architecture for digital reconfigurable intelligent surface
A1 - Miaoran PENG
A1 - Jinhao KAN
A1 - Lixia XIAO
A1 - Guanghua LIU
A1 - Tao JIANG
J0 - Frontiers of Information Technology & Electronic Engineering
VL - 24
IS - 12
SP - 1752
EP - 1762
%@ 2095-9184
Y1 - 2023
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/FITEE.2300133
Abstract: This research investigates the digital-to-analog converter (DAC) free architecture for the digital reconfigurable intelligent surface (RIS) system, where the transmission lines are implemented for reflection coefficient (RC) control to reduce power consumption. In the proposed architecture, the radio frequency (RF) switch based phase shifter is considered. By using a single-pole four-throw (SP4T) switch to simultaneously control the RCs of a group of elements, a 2-bit phase shifter is realized for passive beam steering. A novel modulation scheme is developed to explore the cost effectiveness, which approaches the performance of traditional quadrature amplitude modulation (QAM). Specifically, to overcome the limitation of the phase shift bits, joint frequency-shift and phase-rotation operations are applied to the constellation points. The simulation and experimental results demonstrate that the proposed architecture is capable of providing an ideal transmission performance. Moreover, 64- and 256-QAM modulation schemes could be implemented by expanding the elements and phase bits.
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