| Mobile network users usually suffer from long latencies and frequent disconnection, mobile applications suffer from bad performance. The goal of this thesis is to study the techniques to improve client performance in client/server mobile computing systems, to identify which of the techniques are more promising and can be adapted to a tourist application (map viewing on small handheld devices, or other information like buses, menus, and theatre agendas, traffic and weather, etc.). We designed and implemented a mobile client/server application—a Mobile Map System. Based on our study on mobile computing techniques and the features of the mobile map application, we identified some caching and prefetching techniques and integrated them into our mobile map application. Through experiments, we studied the impact of these techniques to the performance of the application and concluded that the caching only method is a better solution to improve the performance of the mobile map application. (Abstract shortened by UMI.)... |
