Date Added: Jun 2010
This paper describes a location system for persons and objects in an indoor environment, where wireless nodes can include sensors and provide unique identifiers. The system nodes, using ZigBee technology, can function as RFID tags, having each one a unique EPC identification number. Sensors can be associated with the wireless nodes Zigbee to create applications for home, health and traffic control. Existemt location systems are analyzed, with emphasis on indoor location systems. The implemented location algorithm includes a propagation model based on the wall attenuation factor together with triangulation.