Supported by NSF CAREER Grant CNS #0953900
Wireless Underground Sensor Networks (WUSNs) constitute one of the promising application areas of the
recently developed wireless sensor networking techniques. WUSN is a specialized kind of WSN that mainly
focuses on the use of sensors at the subsurface region of the soil. For a long time, this region has
been used to bury sensors, usually targeting irrigation and environment monitoring applications,
Today's wireless networks are facing an emerging spectrum crisis due to increased demand. FCC
has recently allowed non-licensed devices to operate in the TV spectrum band, leading to cognitive radio networks
(CRNs). It is argued that CRNs result in a technical and economical conflict with the TV broadcast companies, which