| Abstract |
|
Localization (a.k.a. locationing) is a central concern
for ubiquitous self-configuring sensor networks. In this
paper the implementation of a distributed, least-squares-based
localization algorithm is presented. Low power and
energy dissipation are key requirements for sensor
networks. As part of the sensor network, the localization
system must also conform to these requirements. An ultra-low-power and dedicated hardware implementation of the localization system is therefore presented. The cost of
fixed-point implementation is also investigated. The
design is implemented in a 0.13 µ CMOS process. It
dissipates 1.7mW of active power and 0.122J/op of active
energy with a silicon area of 0.55mm². The mean
calculated location error due to fixed-point
implementation is shown to be 6%.
|
 Additional Information
|
Citation:
Tufan C. Karalar, Shunzo Yamashita, Michael Sheets, Jan Rabaey,
"An Integrated, Low Power Localization System for Sensor Networks,"
mobiquitous,
pp. 24-30,
First Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services (MobiQuitous'04),
2004
|
