An integrated, low power localization system for sensor networks

T.C. Karalar, S. Yamashita, M. Sheets, J. Rabaey
The First Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services, 2004. MOBIQUITOUS 2004.  
Localization (a.k.a. locationing) is a central concern for ubiquitous self-configuring sensor networks. In this paper the implementation of a distributed, least-squaresbased 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 ultralow-power and dedicated hardware implementation of the localization system is therefore presented. The cost
more » ... fixed-point implementation is also investigated. The design is implemented in a 0.13 CMOS process. It dissipates 1.7mW of active power and 0.122J/op of active energy with a silicon area of 0.55mm 2 . The mean calculated location error due to fixed-point implementation is shown to be 6%.
doi:10.1109/mobiq.2004.1331707 dblp:conf/mobiquitous/KaralarYSR04 fatcat:u667fs4a2vhotco6u3bx3vuzu4