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An energy-efficient distributed in-network caching scheme for green content-centric networks

机译：一种以绿色内容为中心的高效节能的分布式网络内缓存方案

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摘要

Due to the in-network caching capability, Content-Centric Networking (CCN) has emerged as one of the most promising architectures for the diffusion of contents over the Internet. Most existing works on CCN focus on network resource utilization, and the energy consumption aspect is largely ignored. Moreover, the existing centralized schemes for CCN may not be practical to be implemented in realistic networks due to the distributed architecture of the Internet. In this paper, we propose an energy-efficient distributed in-network caching scheme for CCN. In the proposed scheme, each content router only needs locally available information to make caching decisions considering both caching energy consumption and transport energy consumption. We formulate the energy-efficient distributed in-network caching problem as a non-cooperative game. Through rigorous mathematical analysis, we prove that pure strategy Nash equilibria exist in the distributed solution, and it always has a strategy profile that implements the socially optimal configuration, even if the routers are self-interested in nature. Simulation results reveal that the proposed scheme is competitive to the centralized scheme, and has superior performance compared to the other widely used schemes in CCN. Besides, it exhibits a fast convergence speed when the capacity of content routers varies. (C) 2014 Elsevier B.V. All rights reserved.
机译：由于具有网络内缓存功能，以内容为中心的网络（CCN）已成为内容在Internet上传播的最有前途的体系结构之一。现有的有关CCN的大多数工作都集中在网络资源的利用上，而能耗方面却被大大忽略。而且，由于因特网的分布式架构，用于CCN的现有集中式方案可能不可行在现实网络中实现。在本文中，我们提出了一种用于CCN的高效节能的分布式网络内缓存方案。在所提出的方案中，每个内容路由器仅需要本地可用信息来考虑缓存能量消耗和传输能量消耗来做出缓存决定。我们将高能效的分布式网络内缓存问题描述为一种非合作博弈。通过严格的数学分析，我们证明了分布式解决方案中存在纯策略纳什均衡，并且即使路由器是自然界中的利益，它也始终具有实现社会最优配置的策略配置文件。仿真结果表明，该方案与集中式方案相比具有竞争优势，并且与CCN中其他广泛使用的方案相比具有优越的性能。此外，当内容路由器的容量变化时，它表现出快速的收敛速度。 （C）2014 Elsevier B.V.保留所有权利。

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  • 来源
    《Computer networks》 |2015年第26期|119-129|共11页
  • 作者

    Fang Chao; Yu F. Richard; Huang Tao; Liu Jiang; Liu Yunjie;

  • 作者单位

    Beijing Univ Posts & Telecommun, Key Lab Universal Wireless Commun, Minist Educ, Beijing 100088, Peoples R China;

    Carleton Univ, Dept Syst & Comp Engn, Ottawa, ON K1S 5B6, Canada;

    Beijing Univ Posts & Telecommun, Key Lab Universal Wireless Commun, Minist Educ, Beijing 100088, Peoples R China;

    Beijing Univ Posts & Telecommun, Key Lab Universal Wireless Commun, Minist Educ, Beijing 100088, Peoples R China;

    Beijing Univ Posts & Telecommun, Key Lab Universal Wireless Commun, Minist Educ, Beijing 100088, Peoples R China;

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

    In-network caching; Content-centric networking; Energy efficiency; Non-cooperative game;

    机译：网络内缓存;以内容为中心的网络;能效;非合作游戏;

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