Energy-efficient packet relaying based on the sensing relevancies of source nodes in visual sensor networks

• Type: Article in International Conference Proceedings Book
• Date: 2012

Authors

Daniel G. Costa (Author) Other; Luiz Affonso Guedes (Author) Other; Francisco Vasques (Author) FEUP; Paulo Portugal (Author) FEUP

Conference proceedings International

Title: IEEE International Workshop on Factory Communication Systems - Proceedings, WFCS

Pages: 79-82

2012 9th IEEE International Workshop on Factory Communication Systems, WFCS 2012

Lemgo, 21 May 2012 through 24 May 2012

Indexing

Scopus - 2 Citations

INSPEC

Scientific classification

FOS: Engineering and technology > Electrical engineering, Electronic engineering, Information engineering

Other information

Authenticus ID: P-008-66J

DOI: 10.1109/wfcs.2012.6242546

Abstract (EN): When packets are transmitted over braided-paths in visual sensor networks some intermediate nodes may relay most part of the traffic, turning part or the entire network inactive when they run out of energy. Due to the nature of visual monitoring, source nodes may have different relevancies for the application, according to the desired monitoring tasks and the current sensors' poses and fields of view. Based on such relevancies, packets transmitted from different source nodes will have different relaying priorities, which are associated with energy thresholds. We propose an energy-efficient relay scheme where packets are forwarded to the next hop toward the sink only if the associated energy threshold is below the current energy level of the relaying node. Doing so, energy saving is achieved potentially prolonging the network lifetime, but with reduced impact to the overall monitoring quality of the application. © 2012 IEEE.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4