Design and implementation of location management system for mobile servers

摘要

The improvement of mobile computing and input device technologies makes It possible to acquire location-dependent information at any place using mobile hosts very easily. In addition, mobile hosts can be connected to a network from anywhere with wireless communication devices such as cellular phones, wireless LAN, and so on. In such an environment, we aim at the implementation of the system software on which mobile hosts can share the location-dependent information with other hosts. It is, however, difficult for users that request location-dependent information to identify mobile hosts that provide them because the system presents no mechanism to identify hosts by the geographic location. In this paper, we propose location management system that can manage locations of mobile hosts and can identify them by the geographic location. Since our system is supposed under mobile computing environment, It has the mechanism that reduces the overhead of location management on wireless communication. Moreover, we implement a part of this system and show that this system is suitable for mobile environment through the experiment.