<story><title>Researchers create super-efficient Wi-Fi</title><url>http://arstechnica.com/information-technology/2016/02/researchers-create-super-low-power-wi-fi/</url></story><parent_chain></parent_chain><comment><author>avian</author><text>While this is interesting work, I would say it&amp;#x27;s going into the wrong direction. It is simplifying the devices at the cost of less efficient use of the already crowded radio spectrum (the plugged-in device must transmit the carrier wave and the reflections from passive devices consume twice the spectrum due to mirror frequencies) Everyone else is going the other way: complicating devices to achieve higher spectrum efficiency. This approach might be sustainable for spy agencies, but I don&amp;#x27;t see how it could scale to mass deployment (especially with device densities predicted by IoT pundits these days).</text></comment>
<story><title>Researchers create super-efficient Wi-Fi</title><url>http://arstechnica.com/information-technology/2016/02/researchers-create-super-low-power-wi-fi/</url></story><parent_chain></parent_chain><comment><author>ptha</author><text>Mentioned in the article is the  passive bug the Soviets used for covert listening in the US embassy in Moscow. Impressive technology for 1945:  &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;en.wikipedia.org&amp;#x2F;wiki&amp;#x2F;The_Thing_%28listening_device%29&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;en.wikipedia.org&amp;#x2F;wiki&amp;#x2F;The_Thing_%28listening_device%...&lt;/a&gt;</text></comment>