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The concept of peer-assisted content delivery networks (CDNs) lets other nearby altruistic clients forward requested content files instead of the source servers, which works to localize overall traffic. Our prior work proposed a traffic engineering scheme to localize traffic in peer-assisted CDNs. To induce altruistic clients to download content files that are most likely to contribute to localizing...
Peer-assisted content distribution technologies have been attracting attention. By using not only server resources but also the resources of end hosts (i.e., peers), we can reduce the offered load on servers as well as utilization of the access bandwidth of the servers. However, offered traffi to the network may increase because the traffi exchanged between peers passes across the network. Specificall,...
As a promising solution to manage the huge workload of large-scale VoD services, managed peer-assisted CDN systems, such as P4P has attracted attention. Although the approach works well in theory or in a controlled environment, to our best knowledge, there have been no general studies that address how actual peers can be incentivized in the wild Internet; thus, deployablity of the system with respect...
We describe a method of adaptively controlling bandwidth allocation to flows for reducing the file transfer time of short flows without decreasing throughput of long-duration large flows. According to the rapid increase in Internet traffic volume, effective traffic engineering is increasingly required. Specifically, the traffic of long-duration large flows due to the use of peer-to-peer applications,...
Unstructured peer-to-peer (P2P) networks have power-law topology, and the number of content requests also follows power-law distributions. These properties cause two problems: the high-load of high-degree peers and the quick deletion of rarely requested contents. We propose a new caching scheme that replaces the cache on the basis of the number of request messages per unit of time. It significantly...
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