Quality of information based data selection and transmission in wireless sensor networks

Lu Su, Shaohan Hu, Shen Li, Feng Liang, Jing Gao, Tarek F. Abdelzaher, Jiawei Han

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we provide a quality of information (QoI) based data selection and transmission service for classification missions in sensor networks. We first identify the two aspects of QoI, data reliability and data redundancy, and then propose metrics to estimate them. In particular, reliability implies the degree to which a sensor node contributes to the classification mission, and can be estimated through exploring the agreement between this node and the majority of others. On the other hand, redundancy represents the information overlap among different sensor nodes, and can be measured via investigating the similarity of their clustering results. Based on the proposed QoI metrics, we formulate an optimization problem that aims at maximizing the reliability of sensory data while eliminating their redundancies under the constraint of network resources. We decompose this problem into a data selection sub problem and a data transmission sub problem, and develop a distributed algorithm to solve them separately. The advantages of our schemes are demonstrated through the simulations on not only synthetic data but also a set of real audio records.

Original languageEnglish (US)
Title of host publicationProceedings of the 2012 IEEE 33rd Real-Time Systems Symposium, RTSS 2012
Pages327-338
Number of pages12
DOIs
StatePublished - Dec 1 2012
Event2012 IEEE 33rd Real-Time Systems Symposium, RTSS 2012 - San Juan, Puerto Rico
Duration: Dec 5 2012Dec 7 2012

Publication series

NameProceedings - Real-Time Systems Symposium
ISSN (Print)1052-8725

Other

Other2012 IEEE 33rd Real-Time Systems Symposium, RTSS 2012
CountryPuerto Rico
CitySan Juan
Period12/5/1212/7/12

Keywords

  • Data Redundancy
  • Data Reliability
  • Data Selection
  • Quality of Information
  • Sensor Networks

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications

Fingerprint Dive into the research topics of 'Quality of information based data selection and transmission in wireless sensor networks'. Together they form a unique fingerprint.

Cite this