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On incentivizing upload capacity in P2P-VoD systems: Design,analysis and evaluation

机译：关于激励P2P-VoD系统中的上载容量：设计，分析和评估

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摘要

Free riding has long been a serious problem in peer-to-peer (P2P) systems due to the selfish behavior of individual users. To conquer this problem, a key design issue of the P2P systems is to appropriately incentivize users to contribute resources. In P2P Video-on-Demand (VoD) applications, content providers need to incentivize the peers to dedicate bandwidth and upload data to one other so as to alleviate the upload workload of their content servers. In this paper, we design a simple yet practical incentive mechanism that rewards each peer based on its dedicated upload bandwidth. We use a mean field interaction model to characterize the distribution of number of peers in different video segments, based on which we characterize the content providers' uploading cost as a function of the peers' contribution. By using a game theoretic framework, we analyze the interaction between a content provider's rewarding strategy and the peers' contributing behaviors and derive a unique Stackelberg equilibrium. We further analyze the system efficiency in terms of the price of anarchy and study the long term behavior of the system under a repeated game setting. Via extensive simulations, we validate the stability and efficiency of our incentive scheme.
机译：由于个人用户的自私行为，在对等（P2P）系统中，长期搭便车一直是一个严重的问题。为了解决这个问题，P2P系统的关键设计问题是适当地激励用户贡献资源。在P2P视频点播（VoD）应用程序中，内容提供商需要激励对等方专用带宽并相互上传数据，以减轻其内容服务器的上传工作量。在本文中，我们设计了一种简单而实用的激励机制，该机制根据每个对等方的专用上载带宽对其进行奖励。我们使用均值场交互模型来描述不同视频段中对等点数量的分布，在此基础上，我们根据内容对等方的贡献来描述内容提供商的上传成本。通过使用博弈论框架，我们分析了内容提供商的奖励策略与同伴的贡献行为之间的相互作用，并得出了独特的Stackelberg平衡。我们将根据无政府状态的价格进一步分析系统效率，并研究在重复游戏设置下系统的长期行为。通过广泛的模拟，我们验证了激励计划的稳定性和效率。

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  • 来源
    《Computer networks》 |2013年第7期|1674-1688|共15页
  • 作者

    Weijie Wu; John C.S. Lui; Richard T.B. Ma;

  • 作者单位

    School of Information Security Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;

    Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong;

    School of Computing, National University of Singapore, 117418 Singapore, Singapore,Advanced Digital Sciences Center, Illinois at Singapore, 138632 Singapore, Singapore;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    P2P-VoD; Incentive; Mean-field; Stackelberg game;

    机译：P2P-VoD;激励;平均场;Stackelberg游戏;

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