Picture of a black hole

Strathclyde Open Access research that creates ripples...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of research papers by University of Strathclyde researchers, including by Strathclyde physicists involved in observing gravitational waves and black hole mergers as part of the Laser Interferometer Gravitational-Wave Observatory (LIGO) - but also other internationally significant research from the Department of Physics. Discover why Strathclyde's physics research is making ripples...

Strathprints also exposes world leading research from the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

Delivering real-world ubiquitous location systems

Borriello, G. and LaMarca, A. and Chalmers, M. and Nixon, P. (2005) Delivering real-world ubiquitous location systems. Communications - ACM, 48 (3). pp. 36-41. ISSN 0001-0782

[img]
Preview
PDF (strathprints002562.pdf)
strathprints002562.pdf

Download (181kB) | Preview

Abstract

A large number of research and commercial location systems havebeen developed over the past twodecades [7]. In general, these systems have one of two goals: providing highly accurate location estimates, on the order of centimeters, within a small area, or provid-ing lower accuracy over a widecoverage area [8]. Systems with afocus on accuracy typically requireboth extensive infrastructure andrelatively expensive sensors. AT&TCambridge's Active Bats [1] system, for example,employs active ultrasonic badges and requires theinstallation of ceiling-mounted ultrasound receiversevery square meter.