WIRELESS ISN'T ACTUALLY UBIQUITOUS. We've all seen the effects: Calls are dropped and Web pages sometimes take forever to load. One of the most fundamental reasons why such holes in our coverage occur is that wireless networks today are overwhelmingly configured as star networks, This means there's a centrally located piece of infrastructure, such as a cell tower or a router, that communicates with all of the mobile devices around it in a starburst pattern.

中文翻译：

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可以听到的无线电：自干扰消除功能使无线电可以在相同的频率上进行发送和接收

无线实际上不是通用的。我们都已经看到了这种效果：呼叫被丢弃，网页有时需要花费很长时间才能加载。之所以会出现此类漏洞，是最根本的原因之一，就是当今的无线网络绝大多数都被配置为星形网络。这意味着存在一个位于中心的基础架构，例如基站或路由器，可以与所有周围的移动设备呈爆炸状。