Date Added: Dec 2011
This paper deals with the understanding a wireless decentralized check pointing arrangement in QOS using MOG. Check pointing is more crucial in MOG systems than in their conventional wired counter parts due to host mobility. Dynamically, less reliable wireless links frequent disconnections and variation in mobile systems. The algorithms and protocols than the authors can take an adaptive protocol to reduce the overhead and leasing mechanism is for storage but have a problem that can overcome by synchronous snapshot algorithm is that they have rollback/recovery algorithm but have low communication, and storage overhead .The mutable checkpoints should be minimized. If they talk about a large scale super computing system with coordinated check pointing and rollback recovery.