• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE Transactions on Parallel and Distributed Systems >Distributed Caching via Rewarding: An Incentive Scheme Design in P2P-VoD Systems
【24h】

Distributed Caching via Rewarding: An Incentive Scheme Design in P2P-VoD Systems

机译：通过奖励的分布式缓存：P2P-VoD系统中的奖励方案设计

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Peer-to-peer (P2P) systems rely on peers' cooperation to provide a more robust and scalable service as compared to the traditional client-server architecture. However, the peers might be selfish in nature-they would like to receive services from others, but would not like to contribute their own resources by default. To conquer this problem, proper incentive schemes are needed so as to stimulate the peers' contributions. In particular, in P2P video-on-demand (VoD) systems, peers need to distributively cache the proper videos so as to mutually upload and help each other to acquire the required data. Content providers of P2P-VoD services want to incentivize peers to do so and alleviate the workload of the content server. In this paper, we design a practical mechanism to incentivize distributed caching in such systems, under which the peers are rewarded based on the popularity of the video they cache. We characterize the impact of this incentive scheme on peers' caching behaviors. In particular, we formulate an optimization framework to decide the optimal reward price for each video so as to keep enough replicas and minimize the content provider's operational cost. We first derive close form solutions in an asymptotic system, and then extend our results to be adaptive to various practical issues. Via extensive simulations, we validate the effectiveness and efficiency of our incentive scheme.
机译：对等（P2P）系统依靠对等方的合作来提供比传统客户端-服务器体系结构更健壮和可扩展的服务。但是，对等点本质上可能是自私的-他们希望从其他人那里获得服务，但默认情况下不愿意贡献自己的资源。为了解决这个问题，需要采取适当的激励措施以刺激同龄人的贡献。特别地，在P2P点播视频（VoD）系统中，对等方需要分布式缓存适当的视频，以便相互上载并互相帮助获取所需的数据。 P2P-VoD服务的内容提供者希望激励同龄人这样做，并减轻内容服务器的工作量。在本文中，我们设计了一种激励这种系统中的分布式缓存的实用机制，在这种机制下，根据对等端根据他们缓存的视频的受欢迎程度来对其进行奖励。我们描述了这种激励机制对同伴的缓存行为的影响。特别是，我们制定了一个优化框架，以确定每个视频的最佳奖励价格，以便保留足够的副本并最大程度地减少内容提供商的运营成本。我们首先在渐近系统中得出封闭形式的解，然后将结果扩展为适应各种实际问题。通过广泛的模拟，我们验证了激励计划的有效性和效率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号