A fuzzy logic cooperative MAC for MANET |
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Authors: | WANG Zhao-xiang XIA Hai-lun DING Wei |
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Affiliation: | [1]School of Telecommunication and Network Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China; [2]Noah China Institute of Computing Technology, Beijing 100083, China |
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Abstract: | In both wireless local area networks (WLAN) andmobile ad hoc networks(MANET), the IEEE 802.11e mediumaccess control (MAC) protocol is proposed for an effectivequality of service (QoS) solution. A number of studies havebeen done to enhance the performance of 802.11e in MANETby independently adjusting contention window (CW) size ofeach access category(AC) in every node. However, without thecooperation between the high priority flows and lower priorityflows, the QoS goal of high priority flows cannot achieveeffectively. In this article, a fuzzy logic based cooperative MACprotocol (FLCMAC) is proposed to cooperate amongst networkflows and dynamically adjust access probability of each lowpriority flow affecting the high priority flows to satisfy theftQoS requirement. The simulation results indicate that comparedto the enhanced distributed channel access (EDCA) scheme of802.11e, the FLCMAC consistently excels, in terms ofthroughput and delay under moderate and heavy backgroundtraffic both in single-hop and multi-hop scenarios. |
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Keywords: | 802 11e quality of service mobile Ad-hoc networks fuzzy logic cooperative MAC |
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