Pulse division multiplexing: development of EM-material-based communication devices and their communication characteristics

2023 Fiscal Year Final Research Report

• Project/Area Number: 21H01324
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 21020:Communication and network engineering-related
• Research Institution: Nagoya Institute of Technology
• Principal Investigator: Wakatsuchi Hiroki 名古屋工業大学, 工学(系)研究科(研究院), 准教授 (00725278)
• Co-Investigator(Kenkyū-buntansha): 杉浦 慎哉 東京大学, 生産技術研究所, 准教授 (30394927)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: メタマテリアル / メタサーフェス / パルス / 通信 / 多重化 / フィルタ

Outline of Final Research Achievements

The objective of this study lies in developing a novel multiplexing technique based on "pulse width", a parameter independent of existing multiplexing parameters, such as time, space and frequency. Put simply, the use of the pulse width enhances the degree of freedom in wireless communications. To initiate the pulse division multiplexing, we have developed a filtering system capable of separating different pulses arriving at the same time. The proposed system has been verified through numerical and experimental demonstrations. Our results confirmed that pulses with varying widths can be retrieved separately, even when they have the same frequency.

Free Research Field

電磁波工学

Academic Significance and Societal Importance of the Research Achievements

近年の5G、6G、IoTなどを始めとした、無線通信の先端技術に対する需要はこれまでに無い高まりを見せている。例えば、IoT機器は年間20億台以上のペースで増加し、ひと月あたりのデータ流通量も今後5年間で現在の3倍超になると予測されている。本研究を発展させ、真にパルス分割多重化の技術が完成されれば、新たな多重化方式として伝送レートを飛躍的に向上できると期待される。