Title :
Joint anchor-less tracking and room dimensions estimation through IR-UWB peer-to-peer communications
Author :
Tosa, V. La ; Denis, B. ; Uguen, B.
Author_Institution :
CEA-Leti, Minatec Campus, Grenoble, France
Abstract :
In this paper we jointly address the problems of node location tracking and indoor mapping in the absence of infrastructure, relying on peer-to-peer IEEE 802.15.4a Impulse Radio - Ultra Wideband (IR-UWB) links. Coarse Time of Arrival (ToA) measurements, which are obtained within a low complexity Energy Detection (ED) receiver, are mapped into the direct path and single-bounce reflected multipath components. Then these measurements feed a multi-hypothesis tracking filter to retrieve the peers´ normalized coordinates and the room dimensions. Preliminary results are provided in a canonical mobile scenario, where dense multipath channels are generated through realistic UWB Ray-Tracing simulations. On this occasion, remaining structural transmitter/receiver and mirror ambiguities are pointed out and illustrated.
Keywords :
Zigbee; filtering theory; mobile radio; peer-to-peer computing; radio links; radio receivers; radio transmitters; ray tracing; target tracking; time-of-arrival estimation; ultra wideband communication; wireless channels; IR-UWB peer-to-peer communications; UWB ray-tracing simulations; canonical mobile scenario; coarse ToA measurements; coarse time of arrival measurements; direct path reflected multipath components; indoor mapping; joint anchor-less tracking; low complexity ED receiver; low complexity energy detection receiver; multihypothesis tracking filter; multipath channels; node location tracking; peer-to-peer IEEE 802.15.4a IR-UWB links; peer-to-peer IEEE 802.15.4a impulse radio-ultrawideband links; room dimension estimation; single-bounce reflected multipath components; Equations; Estimation; IEEE 802.15 Standards; Mathematical model; Peer to peer computing; Receivers; Time measurement; Energy Detection; Extended Kalman Filter; IEEE 802.15.4a Standard; Impulse Radio; Indoor Environments; Simultaneous Localization and Mapping; Time of Arrival; Tracking; Ultra Wideband; Wireless Sensor Networks;
Conference_Titel :
Ultra-Wideband (ICUWB), 2011 IEEE International Conference on
Conference_Location :
Bologna
Print_ISBN :
978-1-4577-1763-5
Electronic_ISBN :
2162-6588
DOI :
10.1109/ICUWB.2011.6058912
