6533b7d3fe1ef96bd1260287
RESEARCH PRODUCT
Achieving Fair Bandwidth Distribution in WiFi Networks: A Game Theoretical Approach
Ilenia TinnirelloLaura GiarreGiovanni Negliasubject
WiFi; game theorygame theoryDynamic bandwidth allocationbusiness.industryComputer scienceDistributed computingWiFiComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSNetwork monitoringShared mediumDistributed coordination functionNash equilibriumShared resource[INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI]Telecommunications linkComputer Science::Networking and Internet ArchitectureBandwidth (computing)NetworksbusinessGame theoryGame theoryComputer networkdescription
International audience; Achieving fair bandwidth distribution among uplink and downlink ows in IEEE 802.11 infrastructure networks is a complex issue, due to the well-known features of the Distributed Coordination Function (DCF) which regulates the access to the shared medium. Indeed, the dynamic adaptation of the contention windows causes phenomena of short-term unfairness, while the use of homogeneous contention parameters among the contending nodes makes the aggregated downlink bandwidth equal to the uplink bandwidth of a single node. We propose a dynamic tuning of the contention parameters used by the nodes, based on simple network monitoring functionalities and rational strategies. Speci cally, we propose a game-theoretic analysis of such tuning, devised to guarantee a fair resource sharing among the nodes, while optimizing the per-node uploading and downloading bandwidth.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-08-28 |