Rich Ketcham

Learn More
This demonstration presents the results of a study addressing an issue that has constrained the effectiveness of wireless sensor network deployments to date, namely, connectivity. A physically compact, diversity antenna has been developed that is low in complexity and therefore suitably controlled using resource-limited wireless sensor hardware. Herein,(More)
This work demonstrates the use of wireless sensor nodes to monitor time- and frequency-selective channel fading in the 2.4 GHz ISM band. Four distinct channel conditions are considered: (1) a static node experiencing little to no fade, (2) a static node experiencing severe, frequency-selective fading, (3) a static node, in a dynamic environment and (4) a(More)
  • 1