Table of Contents
ISRN Sensor Networks
Volume 2012, Article ID 234251, 9 pages
http://dx.doi.org/10.5402/2012/234251
Research Article

Logical Sensor Network: An Abstraction of Sensor Data Processing over Multidomain Sensor Network

1Graduate School of Media and Governance, Keio University, Kanagawa 2520882, Japan
2Faculty of Environment and Information Studies, Keio University, Kanagawa 2520882, Japan

Received 1 October 2012; Accepted 22 October 2012

Academic Editors: J. Li and Y.-C. Wang

Copyright © 2012 Naoya Namatame et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper focuses on a sensor network virtualization over multidomain sensor network and proposes an abstraction called “logical sensor network (LSN)” for sensor data processing. In the proposed abstraction, processing is a directed acyclic graph that consists of nodes and streams, which represents a small data processor and communication rules between them, respectively. We have added a notion of a trigger to this graph. A trigger represents a timing of the process execution. We have implemented the middleware named LSN-Middle to run a virtualized sensor network and proved its feasibility.