Location aware computing is popularized and location information has more important before. Ubiquitous computing also needs locaiton information. In this paper we propose location estimation system using multi-hop wireless ad-hoc network. The proposed system estimates locations of mobile hosts, using distance between hosts and the locations of some special hosts which know each location by GPS ...

Audio location is a technique for performing accurate 3D location sensing using off-the-shelf audio hardware. The use of off-the-shelf hardware allows audio location deployment to be low-cost and simple for users, as compared to other currently available centimetre-scale location sensing systems which have significant custom hardware and installation labour requirements. Another advantage of au...