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以稳定、灵活而且速度快为特性的无线连网技术已经成熟,无线局域网产品供应商的数目也大大增加,连网设备则变得体积更小且价格更便宜了。很多机构都已从无线局域网的应用中获益非浅,同时它的显著优点和某些弱点都已经为人所关注。无线局域网通过接入点(Access Point)设备连接普通的有线以太网和 IPC 卡,从而为笔记本电脑和手持电脑增加了无线通信能力。从目前看来,运行在2.4GHz 频段、采用802.11b 协议的无线局域网设备可以以11Mbps 的速率传输数据.这比随处可见的100Mbps 有线局域网慢多了,但这个速率对大多数应用程序而言也算足够快.而且在传统的网络很难建设或者根本就不可能建立起来的环境里就更为
Wireless networking technology, which is characterized by its stability, flexibility and speed, has matured, and the number of wireless LAN product suppliers has also risen dramatically. Networked devices have become smaller and cheaper. Many organizations have benefited greatly from the use of wireless LANs, and its salient advantages and certain weaknesses have drawn the spotlight. Wireless LANs add wireless capabilities to laptops and handhelds by connecting common wired Ethernet and IPC cards through Access Point devices. So far, wireless LAN devices using the 802.11b protocol can transmit data at 11Mbps, operating in the 2.4GHz band, which is a lot slower than the ubiquitous 100Mbps wired LAN, but for most applications Fast enough. And in the traditional network is difficult to build or simply impossible to set up in the environment even more