Autonomous Transaction Processing Using Data Dependency in Mobile Environments

Mobile clients retrieve and update databases at servers. They use transactions in order to ensure the consistency of shared data in the presence of concurrent accesses. Transaction processing at mobile clients faces new challenges to accommodate the limitations of mobile environments, such as frequent disconnections and low bandwidth. Caching of frequently accessed data in a mobile computer can be an effective approach to continue transactions in the presence of disconnections or other reasons for losing messages. It can help to reduce contentions on the narrow bandwidths of wireless channels. Concurrency control schemes using caching ensure consistency among data items from the server and from the client caches. We present a scheme that can increase the autonomy of mobile clients for validating transactions, using caching and pull-based data delivery. In the scheme, mobile clients can decide to commit read-only transactions locally, without interaction with the server and can detect ...

• Type: Conference
• Year: 2003
• Where: FTDCS
• Authors: IlYoung Chung, Bharat K. Bhargava, Malika Mahoui, Leszek Lilien
• Keywords: Caching, Dependency Information, Distributed And Parallel Computing, FTDCS 2003, Mobile Clients