Wireless Communications through a Simplified Architecture Based on Time‐Domain Digital Coding Metasurface

By Jun Yan Dai, Wankai Tang, Jie Zhao, Xiang Li, Qiang Cheng, J. Ke, Ming Zheng Chen, Shi Jin, T. Cui. Advanced Materials & Technologies, 2019

220 citations recorded by the source corpus.

Tailoring the electromagnetic responses by metasurface greatly expands one's capabilities to manipulate light in a controlled manner. Either amplitude or phase of the incident wave can be altered during the light–matter interaction, and thus opens the possibility of information modulation without conventional analog or digital circuits. A prototype of quadrature phase‐shift keying (QPSK) wireless communication based on time‐domain digital coding metasurface, whose reflection properties can be varied within different time slots by changing the biasing voltages of varactor diodes in specially designed meta‐atoms, is developed here. As the information is transformed into binary bit streams and mapped to pulse sequences of the biasing voltage, the baseband digital signal is directly modulated to the carrier wave through the digital coding metasurface. Compared to the earlier version of binary frequency‐shift keying architecture based on digital coding metasurface, the proposed QPSK system has a much higher data‐transmission rate for wireless communications. A proof‐of‐concept experiment is conducted to prove the real‐time transmission ability of this system, where a video is delivered between the transmitter and receiver with high accuracy and date rate. The presented work is promising in the development of next‐generation wireless communication technologies.

Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/6c8a8aca59863f735c1c99cad6c36823b1712420

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Electrical and Electronic Engineering

1. M. Di Renzo
2. Rui Zhang
3. Emil Björnson
4. Kai‐Kit Wong
5. Yong Zeng
6. Haifan Yin
7. Lin Cao
8. Xilong Pei

In Electronic, Optical and Magnetic Materials

1. T. Cui
2. Shi Jin
3. Jun Yan Dai
4. Wankai Tang
5. M. Di Renzo
6. Qiang Cheng
7. Ming Zheng Chen
8. Yu Han

Citations in the corpus

• MIMO Transmission Through Reconfigurable Intelligent Surface: System Design, Analysis, and Implementation (2019, methodology): “Subsequently, in [24] and [25], the experiments of RIS-based quadrature phase shift keying (QPSK) transmission over the air were demonstrated.”
• RIS-Aided Wireless Communications: Prototyping, Adaptive Beamforming, and Indoor/Outdoor Field Trials (2021, background): “Due to the tolerances of the PCB manufacturing process, the difference in the dielectric constant of the material, and the non-ideal characteristics of the varactor diode, the electromagnetic characteristics of a fabricated RIS are often different from the ideal simulated one [25].”
• Wireless Communications With Reconfigurable Intelligent Surface: Path Loss Modeling and Experimental Measurement (2019, methodology): “RISs have been utilized to realize new wireless transceiver architectures in [12]–[15], which may bring a paradigm-shift on the transceiver design and may reduce the hardware cost of future wireless communication systems.”