A New Adaptive EDCA Approach to QoS of Wireless Communications

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dc.contributor.authorWang, Huibin
dc.contributor.authorHu, Yang
dc.contributor.authorZhang, Lili
dc.contributor.authorXia, Wei
dc.date.accessioned2016-10-26T09:46:02Z
dc.date.available2016-10-26T09:46:02Z
dc.date.issued2010-07
dc.description.abstractUnder the background of intelligent transportation application, QoS for various services is different in wireless com-munication. Based on the MAC layer protocol, this paper analyzes the QoS in IEEE 802.11 MAC protocol framework, and proposes a new design of a Differentiation Enhanced Adaptive EDCA (enhanced distribution channel access) approach. The proposed approach adjusts the window zooming dynamically according to the collision rate in sending data frames, makes random offset, and further distinguishes the competition parameters of the data frames that have the same priority, so as to reduce the conflict among the data frames, and improve the channel utilization. Experiments with different service cases were conducted. The simulation results show that: comparing with the conventional EDCA method, the proposed approach can ensure that high priority services are sent with priority, and the overall QoS is highly improved.en_US
dc.identifier.citationWireless Engineering and Technology, 2010, 1, 1-9en_US
dc.identifier.urihttp://dx.doi.org/10.4236/wet.2010.11001
dc.identifier.urihttp://hdl.handle.net/123456789/1057
dc.language.isoenen_US
dc.publisherScientific Research Publishingen_US
dc.subjectIntelligent Transportation Systemsen_US
dc.subjectWireless Communi-Cationen_US
dc.subjectMac Layer Protocolen_US
dc.subjectEnhanced Distribution Channel Accessen_US
dc.titleA New Adaptive EDCA Approach to QoS of Wireless Communicationsen_US
dc.typeArticleen_US
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