LOCA
2005
Springer
13 years 10 months ago
2005
Springer
Abstract. We present an improvement to ultrasound–based indoor location systems like Cricket [1]. By encoding and modulating the ultrasound pulses, we are able to achieve greater...
MOBISYS
2005
ACM
14 years 4 months ago
2005
ACM
In this paper, we propose a system that uses the wireless networking and microphone interfaces of mobile devices to determine location to room-level accuracy. The wireless network...