Proxy MSS based Synchronous Checkpointing Approach for Mobile Distributed Systems

Mobile Distributed systems (MDSs) are made up of Mobile host (MH), Base Station (BS) and Mobile Support Station (MSS). Among which MSSs play a key role in mobile environment. This paper presents a low overhead Proxy MSS based framework to handle the fault in mobile distributed Systems. In the proposed scheme, one MSS lot of proxy MSS works as per the workload. One proxy MSS handles the specific group of BS. It is also suggested that all checkpointing data and their related overheads are forwarded to the proxy MSSs and as a result the workload of Mobile Hosts (MHs) will reduce substantially and battery power can be saved. Moreover, all the coordinated message and checkpoint requests will be decreased. The proposed non-blocking proxy based synchronous checkpointing approach has a simple data structure and forces minimum numbers of process to take checkpoint . At the end of the paper simulation results show the comparative analysis in different perspectives. Thus, in view of its unique features, the proposed scheme would be efficient and suitable for mobile distributed systems. Keword: Checkpointing, Mobile Host (MH), Mobile Support System (MSS), Proxy MSS.