论文部分内容阅读
80 2 .1 1为无线局域网标准 ,其物理层的无线媒体决定了它与现有的有线局域网 (LAN)的媒体访问控制 (MAC)层不同 ,具有独特的媒体访问控制机制 ,各站以载波侦听多路访问 /碰撞避免 (CSMA /CA)的方式共享无线媒体。本文是在具体设计研制过程中 ,对MAC子层作了一些探讨 ,重点介绍MAC的分布协调功能(DCF)和点协调功能 (PCF)、MAC层服务及MAC帧格式等 ,并将其运用到了实际工作中。
80 2 .1 1 For the wireless LAN standard, its physical layer of wireless media determines that unlike the existing media access control (MAC) layer of wired LANs, it has a unique media access control mechanism, Listen to multiple access / collision avoidance (CSMA / CA) to share wireless media. This article is in the specific design and development process, the MAC sub-layer made some discussion, focusing on the MAC’s Distributed Coordination Function (DCF) and Point Coordination Function (PCF), MAC layer services and MAC frame format, and applied to In actual work.