Distributing Private Data in Challenged Network Environments

Date Added: Apr 2010
Format: PDF

Developing countries face significant challenges in network access, making even simple network tasks unpleasant. Many standard techniques-caching and predictive prefetching help somewhat, but provide little or no assistance for personal data that is needed only by a single user. Sulula addresses this problem by leveraging the near-ubiquity of cellular phones able to send and receive simple SMS messages. Rather than visit a kiosk and fetch data on demand-a tiresome process at best-users request a future visit. If capacity exists, the kiosk can schedule secure retrieval of that user's data, saving time and more efficiently utilizing the kiosk's limited connectivity.