Title :
Wireless sensor network with 24 GHz local positioning transceiver
Author :
Shmakov, Denys ; Ebelt, Randolf ; Vossiek, Martin
Author_Institution :
Institute for Microwave Engineering and High Frequency Technology, University of Erlangen-Nürnberg, D-91058, Germany
Abstract :
This paper reports on an innovative cooperative wireless localization network layout and the design of its network nodes. Each node consists of a 24 GHz FMCW secondary radar for bilateral range measurements between all nodes. Network synchronization and scheduling is based on IEEE 802.15.4 radio units. A novel concept to distributedly pre-synchronize all network nodes with an error of less than 125 ns was implemented and combined with the 24 GHz local positioning radar. With prototypes of the sensor nodes a ranging precision of about 1 cm is demonstrated experimentally.
Keywords :
Accuracy; Bandwidth; Distance measurement; Radar; Synchronization; Transceivers; Wireless sensor networks; FMCW; IEEE 802.15.4; secondary radar; sensor network; time synchronization;
Conference_Titel :
Microwave Symposium Digest (MTT), 2012 IEEE MTT-S International
Conference_Location :
Montreal, QC, Canada
Print_ISBN :
978-1-4673-1085-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2012.6258280
