Location services and applications, based on network data or global positioning systems, are greatly influencing and changing the way people use mobile phone networks by improving not only user-applications but also the network management part. These applications and services can be further developed by introducing location prediction. We design a system that logs cell id and timestamp data fro...

In this paper I analyze what is emerging in the new frontiers of mobile media, where social media, global positioning systems (GPS)—including location-based services (LBS)—and mobile phones are merging. In addition, I will analyze the implications of the precious heritage that portable media might receive from the mobile phone. To substantiate my analysis, I take into account two examples: (1) ...

Optimal load of mobile robots, while carrying a load with predefined motion precision is an important consideration regarding their applications. In this paper a general formulation for finding maximum load carrying capacity of flexible joint mobile manipulators is presented. Meanwhile, overturning stability of the system and precision of the motion on the given end-effector trajectory are take...

mobile computing systems are made up of different components among which mobile support stations (msss) play a key role. this paper proposes an efficient mss-based non-blocking coordinated checkpointing scheme for mobile computing environment. in the scheme suggested nearly all aspects of checkpointing and their related overheads are forwarded to the msss and as a result the workload of mobile ...

This paper proposes a calibration method of a distributed vision network in a unified world coordinate system. The vision network system is conceived to support a robot working in our daily human life environment: the system provides with visual observation of the dynamically changing situation surrounding the robot. Vision cameras are rather sparsely distributed to cover a wide area such as a ...

MYNORCA is a vision-based navigation system for mobile robots, designed principally for operation in indoor environments. The system uses vision for detecting obstacles and locating natural landmarks. In addition, it is able to solve navigation problems in which the robot's initial location is completely unknown. In this paper, we present an overview of MYNORCA, describe its implementation and ...