Location Systems

Anthony LaMarca is the associate director of Intel Research Seattle. His research interests include location technologies, ubiquitous computing, distributed systems, and human-centered design. His former project, Place Lab, enabled wide-scale device positioning using radio beacons. He is currently leading the Everyday Sensing and Perception project with the goal of building high-coverage, high-accuracy techniques for inferring common contexts. He has a BS in computer science from the University of California at Berkeley and an MS and PhD in computer science from the University of Washington. Eyal de Lara is an associate professor in the Department of Computer Science at the University of Toronto. His research interest lies in the area of mobile and pervasive computing, and in the past he has led projects in the fields of content customization for mobile devices, accurate localization in indoor environments, and secure spontaneous communication. He has a BS in computer science from theInstituto Technologico y de Estudios Superiores de Monterrey (ITESM), Mexico, and an MS and PhD in electrical and computer engineering from Rice University.

• Introduction.- The Global Positioning System.- Infrared and Ultrasonic Systems.- Location Esimation with 802.11.- Cellular-Based Systems.- Other Approaches.- Improving Localization Accuracy.- Location-Based Applications and Services.- Challenges and Opportunities.- References.