A New Wireless Sensor Node Design for Program Isolation and Power Flexibility

A New Wireless Sensor Node Design for Program Isolation and Power Flexibility

Date: December 2009
Creator: Skelton, Adam W.
Description: Over-the-air programming systems for wireless sensor networks have drawbacks that stem from fundamental limitations in the hardware used in current sensor nodes. Also, advances in technology make it feasible to use capacitors as the sole energy storage mechanism for sensor nodes using energy harvesting, but most current designs require additional electronics. These two considerations led to the design of a new sensor node. A microcontroller was chosen that meets the Popek and Goldberg virtualization requirements. The hardware design for this new sensor node is presented, as well as a preliminary operating system. The prototypes are tested, and demonstrated to be sustainable with a capacitor and solar panel. The issue of capacitor leakage is considered and measured.
Contributing Partner: UNT Libraries
Efficient Energy Saving Scheme for On-Chip Caches

Efficient Energy Saving Scheme for On-Chip Caches

Date: 2002
Creator: Gomathisankaran, Mahadevan & Somani, Arun
Description: This paper discusses efficient energy saving techniques for on-chip caches, focusing especially on drowsy cache schemes.
Contributing Partner: UNT College of Engineering