Title

A Light-Weight Event-Driven Protocol for Sensor Clustering in Wireless Camera Networks

Document Type

Article

Language

eng

Format of Original

8 p.

Publication Date

9-2007

Publisher

Institute of Electrical and Electronics Engineers

Source Publication

First ACM/IEEE International Conference on Distributed Smart Cameras, 2007. ICDSC '07

Source ISSN

978-1-4244-1354-6

Original Item ID

doi: 10.1109/ICDSC.2007.4357525

Abstract

We propose a light-weight event-driven protocol for wireless camera networks to allow for formation and propagation of clusters of cameras for the purpose of collaborative processing during object tracking. Cluster formation is triggered by the detection of objects with specific features. Our protocol allows for simultaneous formation and propagation of multiple clusters. Cameras being directional devices, more than one cluster may track a single object since groups of cameras outside each others communication range may see the same object. Entry into a cluster and cluster membership maintenance require a sensor node to confirm the presence of features of the object being tracked. Each cluster elects its own leader among the cameras that observe the same target. When a cluster leader loses track of an object, it assigns the leadership role to another cluster member. To avoid high communication overhead among cluster members, single-hop clusters are formed, i.e., every member of a cluster is within the communication range of the cluster head. We have implemented a simple version of this protocol on a test-bed and provide an experimental evaluation.

Comments

Published as part of the proceedings of the conference, First ACM/IEEE International Conference on Distributed Smart Cameras, September 25-28, 2007, Vienna: 203-210. DOI.

Henry Medeiros was affiliated with Purdue University at the time of publication.