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Adapting the Ranging Algorithm to the Positioning Technique in UWB Sensor Networks

Mats Rydström (Institutionen för signaler och system, Kommunikationssystem) ; Luca Reggiani ; Erik G. Ström (Institutionen för signaler och system, Kommunikationssystem) ; Arne Svensson (Institutionen för signaler och system, Kommunikationssystem)
Journal on Wireless Personal Communications, Springer (0929-6212 (Print) 1572-834X (Online)). Vol. 47 (2008), 1, p. 27-38.
[Artikel, refereegranskad vetenskaplig]

Ultra-Wideband (UWB) is an emerging technology for short-range wireless communications. Due to the high bandwidth of UWB signals, accurate ranging and positioning is possible, which is one of many reasons why UWB is a candidate physical layer for another emerging research area, that of wireless sensor networks (WSNs). In this work, we argue that the ranging algorithm design should be made with the characteristics of the positioning algorithm in mind. In considering ranging and positioning in parallel, we are able to construct a range estimator that is tailored to the positioning algorithm, thereby achieving robustness to non-line-of-sight (NLOS) effects, reasonable overall complexity, and good performance in terms of positioning error. The analysis and simulations in this work are based on the channel models adopted by the IEEE 802.15.4a working group, and highlight the benefits and drawbacks of the proposed approach.

Nyckelord: Ultra-wideband - UWB - Sensor network - Ranging - Positioning - POCS


Invited, published online in October 2007



Denna post skapades 2007-12-12. Senast ändrad 2014-09-29.
CPL Pubid: 62844

 

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Institutioner (Chalmers)

Institutionen för signaler och system, Kommunikationssystem

Ämnesområden

Elektroteknik och elektronik

Chalmers infrastruktur