1A1-D15 A Localization Aware ZigBee-Based Sensing System

Abstract

This paper describes a novel wireless sensor network system that provides both functions of sensor value transmission and sensor localization. ZigBee technology is utilized as wireless network protocol in our system because of its advantages in terms of power consumption and easiness of self-organizing mesh network. For location estimation, Received Signal Strength Indicator (RSSI) is leveraged and a robust grid based sensor localization algorithm is proposed. A testbed location aware ZigBee-based system is successfully evaluated in terms of its performance of sensor value transmission and sensor localization functions.