Concurrency control and recovery in database systems
Concurrency control and recovery in database systems
Data access scheduling in firm real-time database systems
Real-Time Systems - Special issue: real-time databases
Broadcast disks: data management for asymmetric communication environments
SIGMOD '95 Proceedings of the 1995 ACM SIGMOD international conference on Management of data
On optimistic methods for concurrency control
ACM Transactions on Database Systems (TODS)
Read-only transactions in a distributed database
ACM Transactions on Database Systems (TODS)
Mobile Computing and Databases-A Survey
IEEE Transactions on Knowledge and Data Engineering
Experimental Evaluation of Real-Time Optimistic Concurrency Control Schemes
VLDB '91 Proceedings of the 17th International Conference on Very Large Data Bases
Disseminating Updates on Broadcast Disks
VLDB '96 Proceedings of the 22th International Conference on Very Large Data Bases
Scalable Invalidation-Based Processing of Queries in Broadcast Push Delivery
ER '98 Proceedings of the Workshops on Data Warehousing and Data Mining: Advances in Database Technologies
Supporting Read-Only Transactions in Wireless Broadcasting
DEXA '98 Proceedings of the 9th International Workshop on Database and Expert Systems Applications
Certification reports: supporting transactions in wireless systems
ICDCS '97 Proceedings of the 17th International Conference on Distributed Computing Systems (ICDCS '97)
Indexed Sequential Data Broadcasting in Wireless Mobile Computing
ICDCS '97 Proceedings of the 17th International Conference on Distributed Computing Systems (ICDCS '97)
Maintaining consistency of data in mobile distributed environments
ICDCS '95 Proceedings of the 15th International Conference on Distributed Computing Systems
Scalable Processing of Read-Only Transactions in Broadcast Push
ICDCS '99 Proceedings of the 19th IEEE International Conference on Distributed Computing Systems
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In mobile environment, the asymmetric communication between mobile clients and server is a distinguishing feature. The conventional query processing mechanisms cannot be directly applied. In this research, we investigate the approach of using separate processing for read-only transactions (ROTs). Since ROTs have a significant proportion in several applications like traffic information service, stock market and auction, using a separate algorithm to process ROTs from update transactions may reduce the degree of data contention. Thus, both the update and read-only transactions can be executed in a more efficient manner. Besides, using separate algorithm for ROTs allows higher degree of concurrency than standard concurrency control protocols. To require a group of ROTs to be conflict serializable with respect to the update transactions, a consistency requirement called Group Strong Consistency is defined. The performance of the protocol for Group Strong Consistency was examined through a series of simulation experiments.