Availability Issues in Wireless Visual Sensor Networks

• Type: Article in International Scientific Journal
• Date: 2014

Authors

costa, dg (Author) Other; silva, i (Author) Other; guedes, la (Author) Other; Francisco Vasques (Author) FEUP; portugal, p (Author) FEUP

Journal

Title: Sensors

Vol. 14 No. 8

Pages: 2795-2821

ISSN: 1424-3210

Publisher: MDPI

Indexing

ISI Web of Knowledge - 41 Citations

Scopus - 54 Citations

Other information

Authenticus ID: P-009-5D4

DOI: 10.3390/s140202795

Abstract (EN): Wireless visual sensor networks have been considered for a large set of monitoring applications related with surveillance, tracking and multipurpose visual monitoring. When sensors are deployed over a monitored field, permanent faults may happen during the network lifetime, reducing the monitoring quality or rendering parts or the entire network unavailable. In a different way from scalar sensor networks, camera-enabled sensors collect information following a directional sensing model, which changes the notions of vicinity and redundancy. Moreover, visual source nodes may have different relevancies for the applications, according to the monitoring requirements and cameras' poses. In this paper we discuss the most relevant availability issues related to wireless visual sensor networks, addressing availability evaluation and enhancement. Such discussions are valuable when designing, deploying and managing wireless visual sensor networks, bringing significant contributions to these networks.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 27