Date Added: May 2012
Wireless Sensor Networks (WSNs) often operate in inhospitable environments to serve mission-critical and security sensitive applications that involve hostile adversaries. These adversaries are eager to disrupt the WSN operation. Given the important role that the Base-Station (BS) plays in a WSN, the adversary opts to identify the BS and determine its location in order to damage the BS or launch a targeted denial of service attack. Therefore, maintaining the BS anonymity is of utmost importance in WSNs. Even if the adversary cannot decode packets, correlating the intercepted transmission through traffic analysis can reveal the position of the BS.