Cooperative control for high-efficient caching and routing in Information-Centric Networking

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K20265
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 60060:Information network-related
• Research Institution: National Institute of Information and Communications Technology
• Principal Investigator: Ooka Atsushi 国立研究開発法人情報通信研究機構, ネットワーク研究所, 研究員 (20816152)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: ICN / 情報指向ネットワーク技術 / ネットワーク制御 / ネットワーク内キャッシュ

Outline of Final Research Achievements

We focused on Information-Centric Networking (ICN) as a promising network architecture suitable for on-demand retrieval and distribution of high-definition video and studied a method that cooperatively controls in-network caches and route information of ICN routers to achieve highly efficient communication. First, we proposed an in-network caching algorithm considering the process of flow control provided by the transport layer. We also proposed a method that efficiently requests and retrieves content objects when rich content such as high-definition video is cached in a router. In order to realize these proposals by coordinating between routers in a network, we proposed and implemented a centralized controller that manages in-network caches and route information of routers. Using this implementation, we confirmed the effectiveness of the proposed methods. In addition, we present and standardized the specifications of messages required to control routers at the packet format level.

Free Research Field

情報ネットワーク

Academic Significance and Societal Importance of the Research Achievements

近年、高品位動画のビデオオンデマンドサービスの登場や5Gの普及、ニューノーマル時代到来による通信需要やサーバー負荷の大幅な増大が危惧されており、より省資源で高速・低遅延な通信が可能な高効率ネットワークの実現が求められている。こうした通信を効率化するICNの重要性は高く、加えて、ICNの初期設計において想定されていなかった詳細なネットワークの挙動を考慮して更なる通信の効率化を実現する点で、本研究の重要性は高い。また、実際に実装や標準化、遠隔授業通信実験環境での実験等を通じて、提案方式が実環境においても有効であることを実証した点でも意義は大きい。