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随着通信事业的飞速发展,基于无线网络技术的产品大量涌现,它们利用射频(RF)技术在空气中发送和接收数据,取代以前的双绞线构建局域网网络技术,为用户提供无处不在的方便服务。因此我们有必要对无线网络技术有一个初步的了解。
With the rapid development of communications, products based on wireless network technology have emerged in large numbers. They use radio frequency (RF) technology to send and receive data in the air and replace the previous twisted pair network technology to provide ubiquitous Convenient service. Therefore, we need to have a preliminary understanding of wireless network technology.