Advancing Wireless Communication Technologies for the Future

　
講師：ホ ツイウェイ（HE Cuiwei）

E-mail：
［研究分野］
wireless and optical communications
［キーワード］
Wireless Communications, Optical Communications, Communication Theory, Experimental Validations

研究を始めるのに必要な知識・能力

We are seeking motivated students to join our research team in the field of wireless and/or optical communications. Our lab involves a diverse range of research topics, both theoretical and practical. If you have a background in any of the following areas, we encourage you to reach out: Mathematics, Communication Theory, Simulations, Electronics, Optoelectronics, and Optics.

この研究で身につく能力

You will learn advanced transmission techniques used in modern wireless communication systems. You will learn how to build an optical wireless communication testbed using commercially available devices, or components built on your own. Then, you will be able to test your original idea using the constructed testbed. Additionally, through internal collaboration, you will have the opportunity to engage in interdisciplinary research that combines materials science and information science.

【就職先企業・職種】
Engineers in the electronics and telecommunications industries, as well as researchers in universities and national institutes.

研究内容

Our recent OWC transmission testbed utilizes fluorescent fiber concentrations at the receiver.

Our recent research focuses on, but is not limited to, interdisciplinary research involving materials science and the application of AI techniques in optical wireless communications.

• Multidimensional Signal Multiplexing

Optical wireless communication (OWC) offers flexibility in employing various multiplexing techniques, such as multiple-input multiple-output (MIMO), wavelength division multiplexing (WDM), and polarization division multiplexing (PDM). This research will explore the combination of these multiplexing techniques to significantly enhance data transmission rates.

• Fluorescent Antennas/Concentrators

Conventional optical receivers using lenses for light concentration have a limited field of view (FOV), requiring precise alignment between the transmitter and receiver. This bottleneck can be addressed by using fluorescent concentrators or antennas. This research will focus on the development and testing of fluorescent concentrators for high-speed optical wireless communication.

• Artificial Intelligence-Aided Optical Wireless

This research explores the application of neural network algorithms for signal processing in optical wireless communication systems. The focus is on signal equalization and demodulation to enhance the reliability of different transmission systems.

主な研究業績

1. C. He, S. Collins, and H. Murata, “Fluorescent antenna based on Förster resonance energy transfer (FRET) for optical wireless communications,” Optics Express, vol. 32, no. 10, pp. 17152-17164, 2024.
2. C. He, S. Collins, and H. Murata, “Capillary-based fluorescent antenna for visible light communications,” Optics Express, vol. 31, no. 11, pp. 17716–17730, 2023.
3. C. He and S. Collins. “A Two-Stage Fluorescent Antenna For Visible Light Communication Uplinks,” IEEE Photonics Technology Letters, vol. 35, no. 21, pp. 1190 - 1193, 2023.

使用装置

Arbitrary waveform generators, Digital oscilloscopes, High-bandwidth photodetectors, Silicon photomultipliers (SiPMs)