科研成果详情

Wireless signals, including Wi-Fi signals have become ubiquitous. Recent advancement shows that such signals can be leveraged for many applications including healthcare and people motion monitoring. An interesting question would be what if Wi-Fi signals can also be used in monitoring human activities in unauthorized and unauthenticated manner. In this paper, we study of watching human activities through leveraging Wi-Fi signals and discuss a few application prototypes. These prototypes are used to detect, track, and identify any moving objects, including those behind obstacles using multiple-input Multiple-output (MIMO) technology to calculate the change in frequency reception. We attempt to learn whether or not our Wi-Fi router is not watching our Internet activity as well as physical activities. With all new technologies, one must be aware that unauthorized use of these technology can be used by criminals to their advantage, and we discuss some of the countermeasures to mitigate this risks.