Impact of the clients' position on performance of VoD systems based on collocated APs
WebMedia '06 Proceedings of the 12th Brazilian Symposium on Multimedia and the web
Hidden Issues in Deploying an Indoor Location System
IEEE Pervasive Computing
Location-based services for elderly and disabled people
Computer Communications
Indoor Localization Based on Neural Networks for Non-dedicated ZigBee Networks in AAL
IWANN '09 Proceedings of the 10th International Work-Conference on Artificial Neural Networks: Part I: Bio-Inspired Systems: Computational and Ambient Intelligence
On using grid of collocated APs to improve performance of wireless VoD systems
Proceedings of the 5th International Latin American Networking Conference
Calibration games: making calibration tasks enjoyable by adding motivating game elements
Proceedings of the 24th annual ACM symposium on User interface software and technology
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For increasing needs of positioning technology, easy and simple indoor positioning system is desired. Wireless LAN based positioning system is a major candidate of indoor positioning technology. Conventional WLAN based systems require high installation cost or long site calibration before use. In this paper, we describe the implementation of simple WLAN based indoor positioning system WiPS. WiPS uses RSSI between terminals to avoid site calibration. We perform an experiment called a flag game, in which the person raises and lowers the PDA held in each hand. WiPS determines each hand is up or down. As results of the experiment, WiPS detects the movement of PDA in 4.8 sec. on an average.