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In this paper, the authors consider the problem of providing weighted fairness among multiple priority classes in a IEEE 802.11-based Wireless Local Area Network (WLAN). An enhanced DCF method is proposed to properly control the transmission probability of a node that can reflect the weighted fair share among the data traffic flows in the multi-class environment. For this method, they present an analytical model to obtain its throughput performance and the transmission probability capable for the fairness. They numerically evaluate the method with different simulation scenarios. The results well validate the proposed method that can actually fulfill the design aim of weighted fairness and can provide the differentiation service in the WLAN.
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