Wireless Location Technologies and Applications
- PDF / 351,185 Bytes
- 3 Pages / 600.03 x 792 pts Page_size
- 55 Downloads / 189 Views
Editorial Wireless Location Technologies and Applications Thomas Kaiser,1 Ian Oppermann,2 and Domenico Porcino3 1 Department
of Electrical Engineering and Information Technology, Communication Systems Group, Leibniz University of Hannover, Appelstraße 9A, 30167 Hannover, Germany 2 Centre for Wireless Communications (CWC), University of Oulu, Oulu 90014, Finland 3 Wireless Group, Philips Research Laboratories, Cross Oak Lane, Redhill, Surrey RH1 5HA, UK Received 30 July 2006; Accepted 30 July 2006 Copyright © 2006 Thomas Kaiser et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Technologies for location and tracking are fast maturing with an array of new techniques, new algorithms, system designs, and trials bringing location-based services into everyday life. This once niche technology is maturing and gaining wider acceptance, thus finding more and more applications every day. The development of communications systems that include location and tracking capabilities has generated great interest also in the fields of cellular and wireless local/personal area networks. A host of potential new services can be enabled by suitably accurate location and tracking facilities in conjunction with appropriate communications and data transfer platforms. Researchers worldwide are pushing the boundaries of precision, low-cost, component reusability, and ease of field deployment. From established radio techniques, such as WLAN (e.g., IEEE 802.11 a/b/g) to emerging WPAN networks (e.g., Bluetooth and IEEE 802.15.4) to newer ultra-wideband (UWB) systems (e.g., IEEE 802.15.3a and IEEE 802.15.4a), and further previously unconsidered technologies such as digital TV signals, a common denominator to drive adoption and growth is implementing innovative services on top of data transfer. Whether the positioning techniques are based on signal strength, time of flight, or fingerprinting techniques, they offer the potential to improve and optimize traditional services (as diverse as flight navigation or data routing) or bring to life new applications relying on the knowledge of the location of the wireless nodes. A large number of issues must be addressed to move from coarse delay measurement to useful range estimation for tracking purposes. Issues include generation of accurate delay/ranging estimates, proper operation in dense multipath environments, delay/ranging information sharing between nodes, computationally efficient algorithms, algorithms for
low infrastructure environments, dealing with nonline of sight as well as integration with usable applications. The aim of this special issue is to address the state of the art in wireless location technologies and applications with particular emphasis on accurate results in low infrastructure environments. We classified the 16 contributions into 3 major categories, namely, performance analysis, algorithms, and systems/ applicatio
Data Loading...
