ieee802.11e網(wǎng)絡(luò)中qos性能優(yōu)化研究

1、湖北工業(yè)大學(xué)碩士學(xué)位論文IEEE 802.11e網(wǎng)絡(luò)中QoS性能優(yōu)化研究姓名：張志申請學(xué)位級別：碩士專業(yè)：計算機應(yīng)用技術(shù)指導(dǎo)教師：張穎江20100501湖 北 工 業(yè) 大 學(xué) 碩 士 學(xué) 位 論 文 II Abstract As wireless local area network with easy to use, simple and Networking Method, as well as high reliability,

2、 so in recent years, wireless local area network technology and applications has seen rapid development. Wireless LAN is seen as an extension of traditional wired networks, in some environments can also be an alternati

3、ve to traditional wired networks, along with wireless LAN technology, breeding and health of the wireless LAN applications have also entered the people's daily lives and The rapidly growing popularity, however, due

4、 to the wireless LAN services, such as voice services, video services such as the explosive growth of wireless LAN performance, put forward higher requirements, therefore, how to improve the quality of service the wir

5、eless LAN has become a contemporary study of IEEE802.11 wireless LAN hot spots and difficult. For this reason, this more detailed analysis of the quality of service IEEE802.11e for network protocol performance and chara

6、cteristics of competition through the use of dynamically adjusting the window size of the ways to improve business throughput and reduce transmission delay and improve the quality of service wireless LAN. This paper int

7、roduces the IEEE802.11 working principle of the mechanism, focusing on analysis of DCF and PCF channel access method for access to the above characteristics of the way that its presence in the network service quality gua

8、rantee on the shortcomings, and then the IEEE802.11 and able to to improve priority services for the channel access method IEEE802.11e Agreement contrast, described the agreement IEEE802.11e better meet the QoS needs of

9、the business, but also lack of agreement on a description IEEE802.11e the final agreement for the lack of IEEE802.11e network load conditions is proposed based on dynamic adjustment of contention window size of the rese

10、arch program, in the NS simulation environment, add the IEEE802.11e agreement, the agreement is implemented in the NS process of doing the relevant instructions, and simulation results have been some programs were compar

11、ed, by data analysis obtained the program in the multimedia aspects of the throughput and latency performance does improve, the program also received the expected results. Keywords: IEEE802.11e， Quality of Service(QoS)