A Fuzzy Logic Approach for Adjusting The Contention Window Size in IEEE 802.11e Wireless Ad Hoc Networks
نویسندگان
چکیده
Quality of Service (QoS) of IEEE 802.11e is currently under research for the upcoming multimedia applications over broadband wireless networks. IEEE 802.11e is a contention based channel access function that uses the enhanced distributed channel access (EDCA) techniques. EDCA statically resets the Contention Window (CW) after each successful transmission. This article discusses a fuzzy logic approach to adapt the CW. The suggested approach is based on the vague information of the channel. The performance of the proposed fuzzy adaptation technique is compared to the original IEEE 802.11e differentiation scheme. Conducted simulations revealed remarkable adaptation ability reflected in better QoS for streaming applications.
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