Distributed snapshots for mobile computing systems

Accomplishing the distributed snapshots problem in mobile systems is an important issue as well as in distributed systems. This work presents a distributed snapshots protocol for mobile computing systems. In addition, this protocol can be used for achieving an efficient checkpointing protocol in the mobile environment. Specifically, it is a robust adaptation of the classical distributed snapshots protocol, where the mobile hosts can still roam among the different cells within the mobile system. The main benefit of this work is to provide distributed snapshots for a mobile system without adding any restriction to the system, such as FIFO ordering among the application messages as required for a traditional distributed system.