The datacycle architecture for very high throughput database systems
SIGMOD '87 Proceedings of the 1987 ACM SIGMOD international conference on Management of data
Mobile wireless computing: challenges in data management
Communications of the ACM
Broadcast disks: data management for asymmetric communication environments
SIGMOD '95 Proceedings of the 1995 ACM SIGMOD international conference on Management of data
Efficient concurrency control for broadcast environments
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
Disseminating Updates on Broadcast Disks
VLDB '96 Proceedings of the 22th International Conference on Very Large Data Bases
Real-time optimistic concurrency control protocol with dynamic adjustment of serialization order
RTAS '95 Proceedings of the Real-Time Technology and Applications Symposium
AIDA-based real-time fault-tolerant broadcast disks
RTAS '96 Proceedings of the 2nd IEEE Real-Time Technology and Applications Symposium (RTAS '96)
Pinwheel Scheduling for Fault-tolerant Broadcast Disks in Real-time Database Systems
Pinwheel Scheduling for Fault-tolerant Broadcast Disks in Real-time Database Systems
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Conventional concurrency control protocols are inapplicable in mobile computing environments due to a number of constrain tsof wireless communications. In this paper, we design a protocol for processing mobile transactions. The protocol fits the environments such that no synchronization is necessary among the mobile clients. Data conflicts can be detected betw een transactions at the server and mobile transactions by a two-stage validation mechanism. In addition to relieving the server from excessive validation workload, no to-be-restarted mobile transactions will be submitted to the server for final validation. Such early data conflict detection can save processing and communication resources. Moreover, the protocol allows more schedules of transaction executions such that unnecessary transaction aborts can be avoided. These desirable features help mobile transactions to meet their deadlines by removing any avoidable delays due to the asymmetric property.