With the development of computer networks and wireless communication technologies, more interests have been addressed on mobile wireless ad hoc networks (MANET) that are constructed by only wireless hosts. Previously proposed data management researches in traditional mobile database put emphasis only on the mobility and power limitation of mobile clients. In MANET database system, research must consider issues both on clients and servers. Wireless sensor networks can be seen as data source in many applications based on MANET. In these applications, mobile clients query the data generated by wireless sensor networks through mobile servers. Up to now, few papers have discussed the methods of data management in such complicated system which includes mobile clients, mobile servers and wireless sensor networks. In this paper, a novel and complicated system architecture is proposed. In order to deal with the data management problem, Ts-Cache strategy which is based on time-series analysis theory is also proposed, which can significantly reduce the workload of communication and improve the performance of the system.
展开▼
