A study on an architecture of content delivery network based on autonomous delivery of content

基于内容自主分发的内容分发网络体系结构研究

• 批准号: 14350197
• 负责人: SAKAI Yoshinori
• 金额: $ 9.09万
• 依托单位: TOKYO INSTITUTE OF TECHNOLOGY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14350197/
• 关键词: Content Delivery Network; Streaming; ARQ; Meta data; Internet; ストリーム伝送; スケーリング; コンテンツ発見; メタ情報; キャッシング; 匿名課金

This research project aims at constructing a basic architecture of content based network, to provide a new CDN(Content Delivery Network) where content is stored and retrieved based on the metadata appended to each content. The research focuses on (1)developing a content retrieval method based on metadata, (2)developing a content delivery and storing algorithms based on metadata, (3)developing stream transmission method with low transmission delay, (4)developing charging system for content. The following results are obtained for 4 subjects. (1)We have developed a new probabilistic flooding technique to transmit query message and showed that the proposed technique can decrease the total amount of query message without decreasing retrieval error. (2)We have proposed a new meta data which describes history of content retrieval and showed that, by appending meta data to each content, each node in the network can maintain the appropriate content delivery mechanism considering the retrieval history of all contents. (3)We have developed a new ARQ mechanism for streaming packet where each node observes the packet loss and provides adaptive packet retransmission. It is shown that the proposed ARQ mechanism can decrease packet loss caused by retransmission delay. (4)We have developed a new anonymous charging protocol for content, where provider and retriever of the content does not have the knowledge each other.

本研究项目旨在构建基于内容的网络的基本架构，以提供一种新的CDN(content Delivery network)，其中内容的存储和检索基于附加在每个内容上的元数据。研究重点包括：(1)开发基于元数据的内容检索方法；(2)开发基于元数据的内容交付与存储算法；(3)开发低传输延迟的流传输方法；(4)开发内容收费系统。以下是4名受试者的结果。(1)提出了一种新的概率泛洪技术来传输查询消息，并表明该技术可以在不降低检索错误的情况下减少查询消息的总量。(2)我们提出了一种描述内容检索历史的元数据，并表明通过向每个内容添加元数据，网络中的每个节点可以考虑所有内容的检索历史，保持适当的内容交付机制。(3)我们开发了一种新的流数据包ARQ机制，每个节点观察数据包丢失并提供自适应数据包重传。结果表明，提出的ARQ机制可以减少重传延迟造成的丢包。(4)我们开发了一种新的内容匿名收费协议，内容的提供者和检索者彼此不知道。

项目成果

A Proposal for a Multicast Protocol for Live Media

实时媒体组播协议提案

• 发表时间: 2003
• 期刊: Proceeding of Second International Workshop, Quality of Service in Multiservice IP Networks(QoS-IP)
• 作者: Yuthapong Somchit;Aki Kobayashi;Katsunori Yamaoka;Sakai Yoshinoru
• 通讯作者: Sakai Yoshinoru

Edge Enhancement and Interpolation Technique Based on Electric Circuit Simulation and Its Application to Image Segmentation

基于电路仿真的边缘增强插值技术及其在图像分割中的应用

• 发表时间: 2002
• 期刊: Trans.IEICE(in Japanese) Vol.J85-A, No.10
• 作者: Kenji Hirano;Toshiyuki Yoshida;Yoshinori Sakai
• 通讯作者: Yoshinori Sakai

QoS Multicast Protocol for Live Streaming

用于直播的 QoS 组播协议

• 发表时间: 2005
• 期刊: IEICE Tramsactoins on Communications Vol.E88-B, No.3
• 作者: Somchit;Y;Kobayashi;A.;Yamaoka;K.;Sakai;Y.
• 通讯作者: Y.

Numerical Analysis of Packet Merge Technique : The QoS Improvement and the Application Domain

数据包合并技术的数值分析:QoS改进及其应用领域

• 发表时间: 2005
• 期刊: IEICE Transactions on Communications (Japanese Edition) Vol.J88-B, No.3
• 作者: Shunsuke Shinomiya;Katsunori Yamaoka;Yoshinori Sakai
• 通讯作者: Yoshinori Sakai

Adaptive Frame Interval Control for Image Sequences based on a Motion Feature Value

基于运动特征值的图像序列自适应帧间隔控制

• 发表时间: 2005
• 期刊: Trans IEICE(in Japanese) Vol.J88-A, No.1
• 作者: Takamichi Miyata;Yuusuke Mizoguchi;Toshiyuki Yoshida;Yoshinori Sakai
• 通讯作者: Yoshinori Sakai