Prototypical implementation of location-aware services based on a middleware architecture for super-distributed RFID tag infrastructures

Abstract

We provide evidence of the feasibility and effectiveness of a middleware architecture for mobile devices (MoDs), which employs dense distributions of small computerized entities for providing fault-tolerant location-aware services. We do so by describing exemplary implementations based on radio frequency identification as an enabling technology. Firstly, we present prototypical implementations of the hardware abstraction layer and of selected core middleware services. The latter enable a MoD to store and retrieve data and position information in physical places in a fault-tolerant manner, and to identify places based on a location abstraction which is robust against failure of individual tags. Secondly, we investigate the feasibility of some higher-level services and applications by developing and evaluating prototypical systems for tracing and tracking, self-positioning, and collaborative map-making. Keywords Ubiquitous computing Á Location awareness Á Super-distributed RFID tag infrastructures Á Radio frequency identification Á Positioning Á Map-making An earlier version of this article [1] was presented at the 19th international conference on Architecture of Computing Systems (ARCS '06) in Frankfurt am Main, Germany.

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