A study of autonomous data coherency protocol for mobile devices
نویسندگان
چکیده
The optimistic consistency scheme has been established with respect to data consistency and availability in distributed systems. Wireless networks are becoming popular in data communication and suitable for data sharing among users using multicast capability, but have hidden node problems. This paper proposes a simple data coherency protocol for mobile devices that is less data traffic in data collaboration using multicast communication feature and capable of automatic recovery from unpredictable disconnection, such as hidden node problem, by data versioning scheme using version vector and update log management. We evaluated efficiency of data sharing over multicast communication and the recovery cost from failure caused by hidden nodes and confirmed the efficiency of the protocol.
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