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This thesis compares approaches to the problem of discovering a mobile user's location indoors. The particular challenges of location discovery using 802.11 (Wi-Fi) signals and "organically collected" (i.e. user-generated) received signal strength maps are discussed. Several existing and novel localizer algorithms are compared on a database of organically(More)
OBJECTIVES To assess the effectiveness of a wireless network (WiFi-based) localization system (devices mounted on resident wheelchairs) in decreasing caretaker time spent searching for residents and providing alerts of residents going outdoors in a skilled nursing facility. DESIGN A controlled study over two 2-month periods approved by the institutional(More)
— Enabling a team of robots to self-organize into a multi-hop ad hoc network as it simultaneously completes a task requires a system architecture that controls both the motion of each robot and their communication variables. In this paper, we consider this objective and propose a hybrid architecture composed of both centralized and decentralized components.(More)
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