Energy-aware checkpoint intervals in error-prone mobile networks

Checkpoint and rollback scheme can be a good choice on a mobile device for the fault tolerant computing. Since the battery power is one of the most critical resources of a mobile device, it is very important to know the optimal checkpoint interval that minimizes the energy expenditure. In this paper, we propose a method for determining the optimal checkpoint interval that minimizes the energy expenditure in wireless remote checkpoint environments by considering failures both on the system and the wireless link of a mobile device. To evaluate the proposed solution, we conducted performance analysis and simulations.