UWB-over-fiber sensor network for accurate localization based on optical time-division multiplexing

An impulse radio (IR) ultra-wideband (UWB) over fiber sensor network for accurate localization based on optical time-division multiplexing (OTDM) is proposed and demonstrated. Neither clock synchronization nor parameter estimation is required in the proposed UWB sensor nodes. All complex signal processing is completed in the central station, which can greatly improve the localization accuracy and simplify the UWB sensor system. A proof-of-concept experiment is carried out. Two-dimension localization with centimeter-level spatial resolution is achieved.

[1]  Ian Oppermann,et al.  UWB wireless sensor networks: UWEN - a practical example , 2004, IEEE Communications Magazine.

[2]  H. Vincent Poor,et al.  Position Estimation via Ultra-Wide-Band Signals , 2008, Proceedings of the IEEE.

[3]  W. Gregorwich,et al.  Ultra-wideband for navigation and communications , 2001, 2001 IEEE Aerospace Conference Proceedings (Cat. No.01TH8542).

[4]  Robert A. Scholtz,et al.  Ranging in a dense multipath environment using an UWB radio link , 2002, IEEE J. Sel. Areas Commun..

[5]  Andreas F. Molisch,et al.  UWB Systems for Wireless Sensor Networks , 2009, Proceedings of the IEEE.

[6]  A. Rabbachin,et al.  A low-complexity noncoherent IR-UWB transceiver architecture with TOA estimation , 2006, IEEE Transactions on Microwave Theory and Techniques.

[7]  J. Barney,et al.  Commercialization of an ultra wideband precision asset location system , 2003, IEEE Conference on Ultra Wideband Systems and Technologies, 2003.

[8]  R.L. Moses,et al.  Locating the nodes: cooperative localization in wireless sensor networks , 2005, IEEE Signal Processing Magazine.

[9]  Rudolf Zetik,et al.  UWB Sensor Networks for Position Location and Imaging of Objects and Environments , 2007 .

[10]  H. Vincent Poor,et al.  Accurate positioning in ultra-wideband systems , 2011, IEEE Wireless Communications.

[11]  G.B. Giannakis,et al.  Localization via ultra-wideband radios: a look at positioning aspects for future sensor networks , 2005, IEEE Signal Processing Magazine.

[12]  J. Keith Townsend,et al.  The effects of timing jitter and tracking on the performance of impulse radio , 2002, IEEE J. Sel. Areas Commun..

[13]  Guangliang Cheng.  Accurate TOA-Based UWB Localization System in Coal Mine Based on WSN , 2012 .