Observations on optimistic concurrency control schemes
Information Systems - Special issue: Databases:8Mtheir creation, management and utilization
Concurrency control and recovery in database systems
Concurrency control and recovery in database systems
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
On optimistic methods for concurrency control
ACM Transactions on Database Systems (TODS)
The Challenges of Mobile Computing
Computer
IEEE Transactions on Computers
Semantic Data Access in an Asymmetric Mobile Environment
MDM '02 Proceedings of the Third International Conference on Mobile Data Management
Autonomous Transaction Processing Using Data Dependency in Mobile Environments
FTDCS '03 Proceedings of the The Ninth IEEE Workshop on Future Trends of Distributed Computing Systems
Certification reports: supporting transactions in wireless systems
ICDCS '97 Proceedings of the 17th International Conference on Distributed Computing Systems (ICDCS '97)
A Semantic Broadcast Scheme for a Mobile Environment Based on Dynamic Chunking
ICDCS '00 Proceedings of the The 20th International Conference on Distributed Computing Systems ( ICDCS 2000)
Scalable Processing of Read-Only Transactions in Broadcast Push
ICDCS '99 Proceedings of the 19th IEEE International Conference on Distributed Computing Systems
Object Organization on a Single Broadcast Channel in a Global Information Sharing Environment
EUROMICRO '98 Proceedings of the 24th Conference on EUROMICRO - Volume 2
Using Predeclaration for Efficient Read-Only Transaction Processing in Wireless Data Broadcast
IEEE Transactions on Knowledge and Data Engineering
Efficient validation of mobile transactions in wireless environments
Journal of Systems and Software
Adaptive multiversion data broadcast organizations
Information Systems - Special issue: ADBIS 2002: Advances in databases and information systems
Replica Placement Algorithms for Mobile Transaction Systems
IEEE Transactions on Knowledge and Data Engineering
Utilization of execution histories in scheduling real-time database transactions
Data & Knowledge Engineering
Efficient, Energy Conserving Transaction Processing in Wireless Data Broadcast
IEEE Transactions on Knowledge and Data Engineering
A mechanism for replicated data consistency in mobile computing environments
Proceedings of the 2007 ACM symposium on Applied computing
Performance analysis of long-lived cooperative transactions in active DBMS
Data & Knowledge Engineering
Efficient Dissemination of Transaction-Consistent Data in Broadcast Environments
IEEE Transactions on Knowledge and Data Engineering
A self-adaptable scheduler for synchronizing transactions in dynamically configurable environments
Data & Knowledge Engineering
A formal characterization of SI-based ROWA replication protocols
Data & Knowledge Engineering
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Broadcast disk technique has been often used to disseminate frequently requested data efficiently to a large volume of mobile clients over wireless channels. In broadcast disk environments, a server often broadcasts different data items with differing frequencies to reflect the skewed data access patterns of mobile clients. Previously proposed concurrency control methods for mobile transactions in wireless broadcast environments are focused on the mobile transactions with uniform data access patterns. These protocols perform poorly in broadcast disk environments where the data access patterns of mobile transactions are skewed. In broadcast disk environments, the time length of a broadcast cycle usually becomes large to reflect the skewed data access patterns. This will often cause read-only transactions to access old data items rather than the latest data items. Furthermore, updating mobile transactions will be frequently aborted and restarted in the final validation stage due to the update conflict of the same data items with high access frequencies. This problem will increase the average response time of the update mobile transactions and waste the uplink communication bandwidth. In this paper, we extend the existing FBOCC concurrency control method to efficiently handle mobile transactions with skewed data access patterns in broadcast disk environments. Our method allows read-only transactions to access the more updated data, and reduces the average response time of updating transactions through early aborts and restarts. Our method also reduces the amount of uplink communication bandwidth for the final validation of the update transactions. We present an in-depth experimental analysis of our method by comparing with existing concurrency control protocols. Our performance analysis shows that it significantly decreases the average response time and the amount of uplink bandwidths over existing methods.