Data Management and Processing in Sensor Networks

Sensor nodes: Characteristics, constraints. Sensor network applications. Distributed data processing in sensor networks. Continuous Queries. Types of continuous queries and their characteristics. Query Languages. Data collection techniques (pull–based and push–based). Data storage, indexing and search techniques. Aggregation tree. Synchronization and data transmission. Different techniques of forming the aggregation tree. Distributed sensor (self)- organization. Approximate queries in sensor networks. Observing moving objects. Information loss and duplicate calculation of information: means of handling such issues. Quality of sensor measurements. Ways of isolating and removing spurious measurements.

Objectives

Sensors and applications. Sensor networks features, restraints. Types and query languages. In-network query processing. TinyOS.

Prerequisites

Database Systems (PLH302)

Syllabus

Sensor nodes: Characteristics, constraints. Sensor network applications. Distributed data processing in sensor networks. Continuous Queries. Types of continuous queries and their characteristics. Query Languages. Data collection techniques (pull–based and push–based). Data storage, indexing and search techniques. Aggregation tree. Synchronization and data transmission. Different techniques of forming the aggregation tree. Distributed sensor (self)- organization. Approximate queries in sensor networks. Observing moving objects. Information loss and duplicate calculation of information: means of handling such issues. Quality of sensor measurements. Ways of isolating and removing spurious measurements.