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- W1971388596 abstract "분산 컨텐츠 전송 네트워크(DCDN : Distributed Contents Delivery Network)란 CDN(Contents Delivery Network)에서 발전한 개념으로 컨텐츠 전송시에 사용자의 컴퓨터를 이용함으로써 낮은 비용으로 높은 확장성 및 빠른 전송을 제공하는 P2P 방식의 기술이다. 이러한 기존의 DCDN은 2가지 문제를 가진다. 하나는 사용자가 자신의 컴퓨터를 사용하는 시간이 일정하지 않고 또한 사용시간대가 특정 시간대에 집중되는 경향이 있어 안정적인 서비스를 할 수 없다는 것이고, 나머지 하나는 가정 내 NAT(Network Address Translation) 및 방화벽이 존재하면 해당 컴퓨터를 DCDN에서 사용할 수 없다는 것이다. 이에 본 논문에서는 안정적인 서비스를 위해 홈 게이트웨이 기반의 DCDN를 제안한다. DCDN을 구성할 때 사용자 컴퓨터 대신에 홈 게이트웨이를 사용하게 되면 기존 DCDN의 문제를 해결할 수 있다. 즉, 홈 게이트웨이는 24시간 사용되어 안정적인 서비스를 제공하며, NAT 및 방화벽로부터 독립적인 특성을 가진다. 제안된 방법은 유무선 공유기인 ASUS WL-500GP를 이용하여 구현하였으며, 실험을 통해 제안된 방법이 기존 방법에 비해 DCDN 구성에 있어 효율적임을 확인하였다. DCDN(Distributed Contents Delivery Network) as known the next generation of CDN is to exploit the resource of client PCs based on P2P technology to provide low cost, high scalability and high speed services when contents are delivered. This DCDN has two problems. One is that DCDN can't provide a sustainable service because client PCs are on/off irregularly and their on times tend to focus on specific time zone, and the other is that client PCs can not be accessed outside in DCDN if they are behind NAT or Firewall. In this paper, we present a distributed contents delivery network based on home gateway for a sustainable service. If home gateway is used in DCDN instead of client PC, it can solve the two existing problems of DCDN. That is, home gateway can provide a sustainable service because it is on during all day and it is not behind NAT and Firewall. The proposed method is implemented with ASUS WL-500GP, a wired/wireless router. Experimental results show the effectiveness of the proposed method compared to the existing method of DCDN." @default.
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- W1971388596 date "2008-10-31" @default.
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- W1971388596 title "Distributed Contents Delivery Network based on Home gateway for a Sustainable Service" @default.
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- W1971388596 doi "https://doi.org/10.3745/kipsta.2008.15-a.5.249" @default.
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