Distributed Transactions on Mobile Systems: Performance Evaluation Using SWN

Today, many kinds of companies with different activities are set around the world. The quantity of information involved therefore has exploded in the sites of information. In the network architecture, information is commonly shipped on mobile sites with potential storage and processing. Several validation protocols were proposed for validating the transactions in the mobile environments. On the one hand the protocols of mobile validation which concern distributed transactions violate the autonomy of sites. On the other hand, the capacity of mobile units being still low, the cost of extraction of their newspapers risk to be high. This paper proposes a validation model of distributed transactions in mobile environments by taking into account the autonomy of mobile sites. The coordinator establishes a contract with the mobile unit. This contract will preserve the latter from sending its newspapers to the coordinator.