Seamless indoor/outdoor positioning with streamspin

This paper presents the implementation of novel seamless indoor/outdoor positioning service for mobile users. When users are not within GPS range, the service exploits the wifi access point infrastructure for positioning. A central server stores wifi radio maps and map images that are then sent to user terminals based on the mac addresses of nearby access points. The positioning services is available in Streamspin (www.streamspin.com), which is an open and scalable platform for the creation and delivery of location-based services. With this new service, the system enables the easy creation and deployment of mobile services that rely on seamless indoor/outdoor positioning.

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