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This paper presents RegionDCF, a self-adapting media access control protocol for WLAN that seamlessly behaves as CSMA or round-robin access techniques taking advantage of the most effective properties of each access method. In contrast to preceding works in this area that focused on enhancements of each protocol, or on a mechanism that switches between them, this paper proposes a single access method able to behave both as a pure contention-based or as round-robin based protocol depending on present traffic conditions. Simulation results show that RegionDCF outperforms standard 802.11.
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