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无线局域网的标准IEEE802.11已在1997年通过，其内容包含MAC子层和物理层。作为基于共享无线信道而存在争用机制的网络，无线局域网信道的控制管理以及多址访问的实现构成了它的技术关键。本文将对作为IEEE802.11所规定的MAC协议基础的CSMA/CA进行分析。1 无线局域网的特有问题
Wireless LAN standard IEEE802.11 passed in 1997, its contents include the MAC sub-layer and the physical layer. As a network with contention mechanism based on shared wireless channel, the control and management of wireless LAN channel and the realization of multiple access access constitute the key technology. This article analyzes the CSMA / CA that is the basis of the MAC protocol specified by IEEE 802.11. 1 wireless LAN unique issues