Extension of Nonlinear Theory for Beyond 5G Wireless Communication Systems

2022 Fiscal Year Final Research Report

• Project/Area Number: 21K20437
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 0302:Electrical and electronic engineering and related fields
• Research Institution: Toyohashi University of Technology (2022); National Institute of Information and Communications Technology (2021)
• Principal Investigator: Komatsu Kazuki 豊橋技術科学大学, 工学(系)研究科(研究院), 助教 (90912402)
• Project Period (FY): 2021-08-30 – 2023-03-31
• Keywords: 無線通信 / 非線形 / 電力増幅器 / 帯域内全二重 / 理論解析

Outline of Final Research Achievements

The objective of this study is to develop a highly advanced theoretical analysis method for nonlinear wireless communication systems and apply it to the analysis of systems where nonlinearity is important, such as interference cancellation for in-band interference, and to study nonlinearity from a theoretical perspective that has not been considered before. In fact, we were able to develop new nonlinear theories and techniques that are expected to be applied to new wireless technologies such as in-band full-duplex and Beyond 5G systems.

Free Research Field

無線工学

Academic Significance and Societal Importance of the Research Achievements

本研究で拡張された理論は，従来までの理論と比較して，大幅に制約が緩和されている．そのため，本理論は無線通信のさまざまな領域で今後活用されると期待できる．また，無線通信のみならず，ニューラルネットワークなどのように複雑に線形変換と非線形変換が組み合わされるシステムについても理論解析ができるため，無線通信以外の分野での発展・利用も予想される成果である．