| A completely visible Pervasive Transaction Environment where it is possible to link all related transactions of physical objects and trace their mobility through their entire life process, has been elusive. In this upcoming era of global connectivity among users, where anyone anywhere is reachable, we are gradually envisioning a ubiquitous scenario of doing the same with every manufactured object. With the emergence of Radio Frequency Identification (RFID) based object tags, it is now practicable to automatically collect information pertaining to the object's place, time, transaction, etc.; Based on the pervasive deployment of RFID tags, we introduce in this thesis, an ubiquitous architecture for tracking mobile objects in real-time. Based on this architecture as an underlying framework, we propose a location tracking protocol to seamlessly track the mobility of the objects in their respective transactions. Our delay analysis and simulation results indicate that the delay incurred in the database update of current tag location is very low and is in the order of seconds, thus providing a very fine granularity in time for consistent location update requests. Applying the concepts of Scale Free Networks and Epidemic Theory we theoretically analyze and get a stochastic estimate of the average spread of object distributions. (Abstract shortened by UMI.)... |
