Energy-efficient tracking for wireless sensor networks

The wireless sensor network is a special type of network and one of its main requirements refers to energy efficiency. This paper deals with the first step in tracking: localization in wireless networks, in which the energy resources are limited. The radio communications are provided by the IEEE 802.15.4 standard (ZigBee) and by testing in different indoor scenarios, with different power levels, it can be determined whether this standard can be successfully implemented in wireless sensor networks for tracking applications. The results of these measurements are presented in the paper and solutions are given to the issue of precision tracking with less power consumption.