Hu, Energy-E?±cient Surveillance System UsingWireless Sensor Net-
International Symposium on Mobile Ad Hoc Networking and Computing (ACM
Chapter 12
Data Management in Sensor Networks
Jinbao Li1, Zhipeng Cai2, and Jianzhong Li1
1 School of Computer Science & Technology
Harbin Institute of Technology, Harbin, China, 150001
{lijinbao, lizj}@hit.edu.cn
2 Department of Computing Science
University of Alberta, Edmonton, Alberta, Canada, T6G 2E8
zhipeng@cs.ualberta.ca
The purpose of data management in sensor networks is to separate the logical
view (name, access, operation) from the physical view of the data. Users and
applications need not be concerned about the details of sensor networks, but
the logical structures of queries. From the data management point of view,
the data management system of a sensor network can be seen as a distributed
database system, but it is di?®erent from traditional ones. The data management
system of a sensor network organizes and manages perceptible information
from the inspected area and answers queries from users or applications.
This chapter discusses the methods and techniques of data management in
sensor networks, including the di?®erence between data management systems
in sensor networks and in traditional distributed database systems, the architecture
of a data management system in a sensor network, the data model
and the query language, the storing and indexing techniques of sensor data,
the operating algorithms, the query processing techniques and two examples
of data management systems in sensor networks: TinyDB and Cougar.
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