Semantic-based Query Optimization for Mobile Database
LI Rong-xin · Journal of Nanchang University · 2003
In a environment,the broadcast paradigm has been recognized as an effective way to disseminate frequently requested information to multiple mobile clients.In this paper,we show that to query the broadcast database efficiently,database items must be organized over the broadcast channel in a meaningful way.We define a cost model called the semantic ordering model for identifying the optimal organization of database items over the broadcast channel.