Efficient concurrency control for broadcast environments
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
Data & Knowledge Engineering
Concurrency Control Problem for Database Systems
Concurrency Control Problem for Database Systems
IEEE Transactions on Computers
IEEE Transactions on Computers
Scalable Processing of Read-Only Transactions in Broadcast Push
ICDCS '99 Proceedings of the 19th IEEE International Conference on Distributed Computing Systems
Efficient Dissemination of Transaction-Consistent Data in Broadcast Environments
IEEE Transactions on Knowledge and Data Engineering
Proceedings of the Eighth ACM International Workshop on Data Engineering for Wireless and Mobile Access
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A wireless broadcast environment is defined as a mobile computing environment in which data are delivered to mobile clients by means of a broadcast-based mechanism. Of course, those applications have to see the most recent consistent database state. For that reason, in such a scenario, database servers should synchronize operations for ensuring data consistency and currency of data. However, conventional serializability-based concurrency control protocols are unsuitable for synchronizing transactions in broadcast environments. The major goal of this work is to present a new serializability-based protocol to synchronize transactions in data intensive applications. The proposed protocol saves battery power, since it ensures that mobile clients do not have to contact servers (for requiring locks, for example) to access data. Thus, mobile clients do not need to listen to the broadcast continuously; they listen to the broadcast channel to retrieve data they need. Therefore, the proposed protocol supports client disconnections. We performed simulation analysis to evaluate the performance of the new protocol. The simulation results show that the proposed protocol offers better performance than others protocols.