A Query Processing Method Considering the Characteristic of Energy Consumption for Broadcast Database Systems

In recent years, there has been an increasing interest in a broadcast database system where the server periodically broadcasts contents of a database to mobile clients such as PDAs and smart phones. There are three query processing methods in the broadcast database system. Generally, mobile clients have limits in energy consumption, i.e., battery,and each of the three methods consumes different amount of energy for query processing. In this paper, we propose a new method which dynamically chooses one of the three query processing methods considering energy consumption.