Informatics Publishing Limited

J. L. Walter Jeyakumar ¹, R. S. Rajesh ¹

Affiliations
1 Department of Computer Science and Engineering, Manonmaniam Sundaranar University, Tirunelveli, IN

Abstract

We present a mobile transaction framework in which mobile users can share data which is stored in the cache of a mobile agent. This mobile agent is a special mobile node which coordinates the sharing process. The proposed framework allows mobile affiliation work groups to be formed dynamically with a mobile agent and mobile hosts. Using short range wireless communication technology, mobile users can simultaneously access the data from the cache of the mobile agent. The data Access Manager module at the mobile agent enforces concurrency control using cache invalidation technique. This model supports disconnected mobile computing allowing mobile agent to move along with the Mobile Hosts. The proposed Transaction frame work has been simulated in Java 2 and performance of this scheme is compared with existing frame works.

Keywords

Transaction, Concurrency Control, Mobile Database, Cache Invalidation, Mobility.

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J. L. Walter Jeyakumar ¹, R. S. Rajesh ¹

Affiliations
1 Department of Computer Science and Engineering, Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, IN

Abstract

In this paper, we define a disconnected transaction management scheme for agent based mobile networks. This scheme proposes an environment in which mobile users can have simultaneous access to data by using the cache stored in the Fixed Agent. Data Access Manager module at the Fixed Agent controls the concurrency using invalidation technique. This approach supports disconnected transaction execution by allowing a disconnected mobile host to transfer transaction execution to the Data Access Manager in the fixed agent. The proposed transaction management scheme has been simulated in Java and performance of the scheme is presented.

Keywords

Transaction, Concurrency Control, Mobile Host, Fixed Agent, Cache Invalidation.

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