TECHNOLOGIES FOR NOTIFICATION SERVICE IN LOCATION-AWARE SERVICE PLATFORM "LOCATIONWARE"

This paper proposes a key technology for a location-aware notification service as one of special features in the authors' location-based information service platform "LOCATIONWARE". The location-aware notification service, that automatically notifies users when they come into close proximity to pre-registered targets, is a new service paradigm in the location-based information service. In this paper, the authors reveal that communication cost reduction is a key issue to launch the new service. In order to solve the issue, they propose to introduce a new cache control mechanism into a terminal and evaluate the cost reductions through the mechanisms