On query processing considering energy consumption for broadcast database systems

Authors:
Shinya Kitajima;Jing Cai;Tsutomu Terada;Takahiro Hara;Shojiro Nishio
Affiliations:
Dept. of Multimedia Eng., Graduate School of Information Science and Technology, Osaka University, Suita, Osaka, Japan;Dept. of Multimedia Eng., Graduate School of Information Science and Technology, Osaka University, Suita, Osaka, Japan;Cybercommunity Division, Cybermedia Center, Osaka University, Ibaraki, Osaka, Japan;Dept. of Multimedia Eng., Graduate School of Information Science and Technology, Osaka University, Suita, Osaka, Japan;Dept. of Multimedia Eng., Graduate School of Information Science and Technology, Osaka University, Suita, Osaka, Japan
Venue:
DASFAA'07 Proceedings of the 12th international conference on Database systems for advanced applications
Year:
2007

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Abstract

In recent years, there has been an increasing interest in the broadcast database system where the server periodically broadcasts contents in a database to mobile clients such as portable computers and PDAs. There are three query processing methods in the broadcast database system, while each method consumes different amount of power for query processing. In this paper, we propose a new query processing method which dynamically chooses an appropriate method among the three query processing methods by considering energy consumption.