A RFID and WSN based distributed localization algorithm

Abstract

Radio Frequency Identification（RFID）and Wireless Sensor Network（WSN）are both widely adopted in the application of target recognition/tracking and mobile positioning. In view of the technical limitation in the field of positioning application, such as the restrain of sense range, recognition efficiency, networking capability, and so on，this paper proposes a distributed localization algorithm, combining the advantages of RFID and WSN technologies with better object identification, communication and sensing capabilities. This method firstly employs RF reader and tags to obtain an accurate reference zone, and then uses range-free fingerprinting based localization method to make estimates in selected zone. Simulation results reveals that the proposed method improves effectively the localization accuracy of mobile nodes, as well as saves network resources.

Keywords

• rfid
• wsn
• mobile positioning
• distributed wsn
• fingerprinting