IMDEA Networks Institute Publications Repository

Thwarting Selfish Behavior in 802.11 WLANs

Banchs, Albert and Ortin, Jorge and Garcia-Saavedra, Andres and Leith, Douglas J. and Serrano, Pablo (2016) Thwarting Selfish Behavior in 802.11 WLANs. [Journal Articles]

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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 stations to react, upon detecting a misbehavior, by using a more aggressive configuration that penalizes the misbehaving station. We show that the proposed algorithm guarantees global stability while providing good response times. By conducting an analysis of the effectiveness of the algorithm against selfish behaviors, we also show that a misbehaving station cannot obtain any gain by deviating from the algorithm. 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 implemented on commodity hardware.

Item Type: Journal Articles
Uncontrolled Keywords: CSMA/CA; IEEE 802.11; distributed algorithms; selfish behavior; wireless LAN
Depositing User: Rebeca De Miguel
Date Deposited: 13 Mar 2015 15:12
Last Modified: 06 Apr 2018 15:34

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