Game theory as a tool for modeling cross-layer interactions

  • Authors:
  • Christian Facchini;Fabrizio Granelli

  • Affiliations:
  • Dept. of Information Engineering and Computer Science, University of Trento, Trento, Italy;Dept. of Information Engineering and Computer Science, University of Trento, Trento, Italy

  • Venue:
  • ICC'09 Proceedings of the 2009 IEEE international conference on Communications
  • Year:
  • 2009

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Abstract

Modeling computer networks is a complex task, as their behavior depends from several variables. Focusing on a single communication device, ISO/OSI and TCP/IP layered protocol stacks provide interoperability and fast deployment of networking solutions, but they limit the control on the interaction among protocols operating at different layers. As a consequence, the need is emerging to develop appropriate models to capture and evaluate the interaction of protocols within a single communication device in order to underline such forms of "indirect" interaction - since they may lead to unforeseen performance degradations. The proposed work aims at using the game theory for capturing the interactions within the protocol stack of a single node, with the goal of allowing to determine the "steady state" or the operating point of the system in a given scenario. As a result, a scalable and modular framework is presented, that enables characterization and analysis of cross-layer interactions starting from the protocols' specifications. Finally, as an example of application, the model is applied to a single-hop IEEE 802.11 wireless network.