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Design a defense strategy against the selfish behavior of nodes using IEEE 802.11 MAC protocol.

机译:使用IEEE 802.11 MAC协议设计针对节点自私行为的防御策略。

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摘要

The cooperation of all nodes of an ad hoc network guarantees the optimal performance of this network. However, a node can behave selfishly at the MAC sublayer of IEEE 802.11 protocol which manages the access control to the medium. Such a selfish behavior can decrease the size of the contention windows in order to increase the priority of the transmission. The consequence of such a behavior for a node is an improvement on its throughput. This should lead to a decrease of the network bandwidth.;In this research, we design a defense strategy based on the Tit-for-Tat strategy (TFT). TFT was designed in game theory to deal with selfish behaviors. We will demonstrate why and how such a strategy aims to achieve fairness in sharing bandwidth. We will introduce variations of the TFT strategy as generous Tit-for-Tat (GTFT). The generosity factor is going to allow us to adapt ourselves to the constraints of the medium. Finally we will discuss the choice and the parameters influence of such a strategy on the behavior of the node and the entire network.;Keywords: Ad-hoc Networks, MAC, CSMA/CA, TFT, GTFT.
机译:自组织网络所有节点的协作保证了该网络的最佳性能。但是,节点可以在管理媒体访问控制的IEEE 802.11协议的MAC子层上自私地工作。这种自私的行为可以减小竞争窗口的大小,以增加传输的优先级。节点的这种行为的结果是其吞吐量的提高。这将导致网络带宽的减少。;在本研究中,我们设计了一种基于Tit-for-Tat策略(TFT)的防御策略。 TFT是根据博弈论设计的,用于处理自私行为。我们将演示为什么以及如何实现共享带宽公平的策略。我们将介绍TFT策略的变化形式,例如宽大的“ Tit-for-Tat”(GTFT)。慷慨的因素将使我们能够适应媒体的限制。最后,我们将讨论这种策略的选择和参数对节点和整个网络行为的影响。关键词:Ad-hoc网络,MAC,CSMA / CA,TFT,GTFT。

著录项

  • 作者

    Rousseau, Clement.;

  • 作者单位

    Ecole de Technologie Superieure (Canada).;

  • 授予单位 Ecole de Technologie Superieure (Canada).;
  • 学科 Computer Science.
  • 学位 M.Ing.
  • 年度 2011
  • 页码 94 p.
  • 总页数 94
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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