Highly-reliable and reduced-packet-delay buffer-aided cooperative protocol

2021 Fiscal Year Final Research Report

• Project/Area Number: 17H03259
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Communication/Network engineering
• Research Institution: The University of Tokyo
• Principal Investigator: Sugiura Shinya 東京大学, 生産技術研究所, 准教授 (30394927)
• Project Period (FY): 2017-04-01 – 2021-03-31
• Keywords: 協調通信 / バッファ / 中継選択 / 全二重 / 非直交多元接続

Outline of Final Research Achievements

In wireless communication systems, cooperative communication technology has the potential to improve the communication performance of the entire network when a group of distributed nodes cooperates. In this study, we proposed methods that increase the degree of freedom in system design and exceed the conventional achievable performance by exploiting the degree of freedom of the data buffer, which has not been widely used in conventional wireless networks. In particular, we proposed cooperative communication protocols using buffers in combination with non-orthogonal multiple connections and full-duplex communication. The theoretical and numerical analysis confirmed the improved effective transmission rate, reliability, and confidentiality in the proposed schemes.

Free Research Field

情報通信工学

Academic Significance and Societal Importance of the Research Achievements

本研究では、データバッファを利用した無線通信ネットワークを対象として、非直交多元接続と全二重通信のコンセプトを利用した新しい方式を提案した。このことは、さらなる高性能化が重要である次世代ワイヤレス通信システムへの適用検討に重要である。今回対象とした方式は基本的な技術であるため、実用化時には幅広い通信システムへの波及効果が期待できる。引き続き、本技術の実用化に向けた研究に取り組んでいく。