Next Generation Delay Tolerant Disaster Communication System expotentially improving Latency and Transmission Rate for Communication Disruption

2022 Fiscal Year Final Research Report

• Project/Area Number: 19K04972
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 25030:Disaster prevention engineering-related
• Research Institution: Fukuoka Institute of Technology
• Principal Investigator: Uchida Noriki 福岡工業大学, 情報工学部, 教授 (10610298)
• Co-Investigator(Kenkyū-buntansha): 柴田 義孝 岩手県立大学, その他部局等, 特命教授 (80129791) ; 石田 智行 福岡工業大学, 情報工学部, 教授 (00719148)
• Project Period (FY): 2019-04-01 – 2023-03-31
• Keywords: 災害通信システム / 耐遅延性通信 / 無線通信 / モバイルネットワーク / IoT

Outline of Final Research Achievements

The research presents the Next Generation Disaster Communication System based on DTN (Delay Tolerant Networking). The system first aims for the exponential improvements of latency and transmission rate of the significant messages just after disasters by the proposed heterogeneous wireless D2D (Device-to-Device) methods. Second, it also aims for new applications, such as the autonomous information-sharing functions of the extent of the damages or injuries by the gyro sensors and the wireless conditions of the IoT devices or smartphones.
Then, the proposed methods, such as the QoS (Quality of Service) control method for the heterogeneous wireless D2D through the entire network, and the prototype system is implemented for the evaluations of the proposed methods. The results indicated the effectivity of the proposed by achieving the targeting latency and transmission rate by the experiments.

Free Research Field

災害情報システム、無線ネットワーク、QoS

Academic Significance and Societal Importance of the Research Achievements

本研究は、多くの課題点が指摘されてきたDTN（Delay Tolerant Networking)法においても、提案した拡張データトリアージ法及び異種無線網間通信のサービス品質制御機能を導入することで、災害時にも、飛躍的通信性能の向上を可能にすることを示すことができる。
また、提案した被災者支援機能により、被災状況や負傷状況などの人的状況把握による時間の軽減も期待でき、これらの成果は、災害が多い我が国ならではの、世界へ貢献する重要なコンテンツとなりうると考えられる。