Search results for "MAC design"

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MAC Design for WiFi Infrastructure Networks: A Game-Theoretic Approach

2011

In WiFi networks, mobile nodes compete for accessing a shared channel by means of a random access protocol called Distributed Coordination Function (DCF). Although this protocol is in principle fair, since all the stations have the same probability to transmit on the channel, it has been shown that unfair behaviors may emerge in actual networking scenarios because of non-standard configurations of the nodes. Due to the proliferation of open source drivers and programmable cards, enabling an easy customization of the channel access policies, we propose a game-theoretic analysis of random access schemes. Assuming that each node is rational and implements a best response strategy, we show that…

FOS: Computer and information sciencesgame theorycheating nodeaccess protocolsmobile nodesComputer sciencegame-theoretic approachMAC designDistributed coordination functionUpload[INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI]MAC protocolschannel access policyComputer Science - Computer Science and Game TheoryFOS: MathematicsElectrical and Electronic EngineeringMathematics - Optimization and Controlwireless LANdistributed coordination functionMechanism designcheating nodesWiFi infrastructure networksbusiness.industryApplied MathematicsNode (networking)WiFiComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSWiFi; cheating nodes; game theory; MAC protocolsComputer Science ApplicationsShared resourceprogrammable cardsOptimization and Control (math.OC)game-theoretic analysisBest responserandom access schemebusinessrandom access protocolRandom accessCommunication channelComputer networkComputer Science and Game Theory (cs.GT)
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A Cognitive Tuning of Contention Windows in WiFi Infrastructure Networks

2009

In WiFi networks, mobile nodes compete for accessing a shared channel by means of a random access protocol called Distributed Coordination Function (DCF). Although this protocol is in principle fair, since it should guarantee that all the stations have the same probability to transmit on the channel, it has been shown that unfair behaviors may emerge in actual networking scenarios. These phenomena are due to different reasons, including non-standard configurations of the nodes, critical network topologies, and short-term performance observations. In this paper we propose a game-theoretic approach for defining an enhanced DCF scheme suitable for WiFi intelligent nodes employing cognitive fun…

Settore ING-INF/04 - AutomaticaWiFi Networks MAC design Game theorySettore ING-INF/03 - Telecomunicazioni
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