摘要：无线局域网（WLAN）是90年代计算机网络与无线通信技术相结合的产物。1997年6月公布的IEEE 802.11标准如今已成为主导技术和事实上的行业标准。随着多媒体业务流量的剧增，使无线网络的资源管理、服务质量（QoS）保障等问题日益突出。传统的媒体访问控制（MAC）协议需要重新设计才能对无线网络的QOS问题进行有效地解决。文中探讨了无线局域网系列协议的标准。在此基础上，着重对IEEE802.11e标准及其该协议的媒体访问控制层的设计实现，QoS策略，补码键控调制法进行了探讨。

关键词：无线局域网、IEEE802.11系列标准、媒体访问控制（MAC）、服务质量(QoS).

 

 

Abstract: Wireless Local Area Network (WLAN) is an outcome that calculator net correspond with wireless communications technique together in 90’s latter. IEEE announced 802.11 standard aiming at Wireless Area Net in June 1976 has been become the predominant technique and the professional standard in fact. The resources management, Quality Of Service (QoS) of the Wireless Area Net the etc. problem have been outstanding，alone with the leaping increase of multimedia operation. The traditional Medium Accessing Control (MAC) agreement demands design afresh to resolve the QOS problem of the Wireless Area Net effectually. It studied the WLAN family agreement standard in the text. On this foundation, it stressly discuss the standard of IEEE802.11e,and the design and realization of MAC, Qos policy, Complementary Code Keying.

Keywords: Wire Less Area Net, IEEE802.11 series standards, Medium Accessing Control(MAC),  Quality Of Service (QoS)

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