摘要无线局域网WLAN(Wireless Local Area Networks)是20世纪90年代计算机与无线通信技术相结合的产物,它使用无线信道来接入网络,为通信的移动化、个人化和多媒体应用提供了潜在的手段,并成为宽带接入的有效手段之一。802.11标准定义了单一的MAC层和多样的物理层,其物理层标准主要有802.11b/a/g。
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