Case Study:The Effect of Variable Priority Parameters on the QoS of WLANs IEEE 802.11e EDCF

摘要：

The IEEE 802.11e MAC protocol enhances the 802.11 CSMA/CA contention mechanism by allowing the adjustment of previously fixed MAC parameters.This paper studies the IEEE 802.1le Enhanced Distributed Coordination Function (EDCA) traffic priority mechanism performance based on its priority parameter values,namely AIFSN,CWmin,CWmai and TXOP-Limit on a different traffic wireless transmission.In particular,we investigate how the changes of the QoSparameters affect the throughput and the delay at WLAN traffic.The simulations results show that the changes of the QoS parameter can successfully prioritize video and voice transmission over data in a real EDCA Network.High priority traffic (the traffic with low AIFSN:Voice and Video) can give better QoS than the traffic with low priority.

关键词： EDCA DCF 802.11e AC WLAN

作者: Riyadh Qashi Martin Bogdan Klaus H(a)nssgen

作者单位: Faculty of Mathematics and Computer Engineering,University of Leipzig Jonannisgasse 26,04103 Leipzig Leipzig University of Applied Science Faculty of Information Systems and Multimedia Technlogy Freyta

会议类型: 国际会议

会议名称: 2011 International Conference on Computer and Network Engineering(ICCNE 2011)(2011年计算机与网络工程国际会议)

会议地点: 郑州

会议语种:英文

页码: 104-108

在线出版日期: 2011-06-17（万方平台首次上网日期，不代表论文的发表时间）