Thwarting Selfish Behavior in 802.11 WLANs

Banchs, Albert and Ortin, Jorge and Garcia-Saavedra, Andres and Leith, Douglas J. (2013) Thwarting Selfish Behavior in 802.11 WLANs. Technical Report.

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The 802.11e standard enables user configuration of several MAC parameters, making WLANs vulnerable to users that selfishly configure these parameters to gain throughput. In this paper we propose a novel distributed algorithm to thwart such selfish behavior. The key idea of the algorithm is for honest stations to react, upon detecting a selfish station, by using a more aggressive configuration that penalizes this station.We show that the proposed algorithm guarantees global stability while providing good response times. By conducting a game theoretic analysis of the algorithm based on repeated games, we also show its effectiveness against selfish stations. Simulation results confirm that the proposed algorithm optimizes throughput performance while discouraging selfish behavior. We also present an experimental prototype of the proposed algorithm demonstrating that it can be implementated on commodity hardware.

Item Type: Monograph (Technical Report)
Keywords: Networking; Internet Architecture; Selfish Behavior; 802.11 WLANs;
Academic Unit: Faculty of Science and Engineering > Research Institutes > Hamilton Institute
Item ID: 5958
Identification Number: arXiv:1311.6280
Depositing User: Professsor Douglas Leith
Date Deposited: 12 Mar 2015 16:49

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