期刊名称：International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
印刷版ISSN：2278-1323
出版年度：2012
卷号：1
期号：5
页码：111-118
出版社：Shri Pannalal Research Institute of Technolgy
摘要：In Mobile hosts failure probability is high. An efficient checkpointing technique and a failure recovery sc heme together can make a mobile computing system fault-tolerant. For efficient recovery, information of a mobile host should be kept in an organized manner. Efficiency of a recovery scheme can be measured in terms of time and cost. Mobile hosts move randomly and handoff occurs. Information of a single mobile host gets scattered over a number of mobile support stations that can be at closer or further distance. Recovery time and cost primarily depend on number of mobile support stations from which information to be collected as well as distance among them. Larger the distance, longer the time for communication through message passing. Number of mobile support stations from which information to be recovered and distance among them can be delimited by keeping a handoff threshold value in each mobile host. Recovery scheme proposed here applies both the measures. Our work optimizes both failure-free and failurerecovery operation costs.
关键词：coordinated checkpointing; communication induced checkpointing; domino effect; minimal checkpoint; non-blocking checkponting; ; optimistic logging; message passing systems
