A Partial Cache for Multimedia Content in Named Data Networking

Jenq-Muh Hsu, Hsiao-Yi Chiu, Yi-Shiuan Ye
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引用次数: 3

Abstract

Named Data Networking (NDN) is a novel transmission framework in future Internet. It is a content-centric network. The content is routed based on its unique name, not IP address in NDN. A NDN node broadcasts an interest packet with the requesting named content to NDN. A NDN node has the requested named content. It will encapsulate requested content into data packets and deliver them back to the requesting NDN node. If intermediate nodes are located on the routing path of requesting/replying named content. They will also cache the named content for serving the next same requesting from different NDN nodes. However, multimedia content usually are used the streaming fashion to deliver over the Internet. It is an important issue to design a proper caching mechanism of named multimedia to satisfy the features of multimedia streaming. In this paper, we proposed a partial caching mechanism to temporally cache the named streaming content on the intermediate nodes in NDN. It can provide a better streaming service than the originated caching mechanism in NDN.
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命名数据网络中多媒体内容的部分缓存
命名数据网络(NDN)是未来互联网中一种新的传输框架。它是一个以内容为中心的网络。在NDN中,内容是根据其唯一的名称而不是IP地址进行路由的。NDN节点向NDN广播一个包含请求命名内容的兴趣包。NDN节点具有请求的命名内容。它将请求的内容封装到数据包中,并将其发送回请求的NDN节点。如果中间节点位于请求/应答命名内容的路由路径上。它们还将缓存命名的内容,以便为来自不同NDN节点的下一个相同请求提供服务。然而,多媒体内容通常使用流媒体方式在Internet上传输。为满足多媒体流的特点,设计合适的命名多媒体缓存机制是一个重要的问题。在本文中,我们提出了一种局部缓存机制来临时缓存NDN中间节点上命名的流内容。它可以提供比NDN中原始缓存机制更好的流服务。
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