Institutional Research Information Service
UCL Logo
Please report any queries concerning the funding data grouped in the sections named "Externally Awarded" or "Internally Disbursed" (shown on the profile page) to your Research Finance Administrator. Your can find your Research Finance Administrator at https://www.ucl.ac.uk/finance/research/rs-contacts.php by entering your department
Please report any queries concerning the student data shown on the profile page to:

Email: portico-services@ucl.ac.uk

Help Desk: http://www.ucl.ac.uk/ras/portico/helpdesk
Publication Detail
Energy consumption of visual sensor networks: Impact of spatio-temporal coverage based on single-hop topologies
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Conference Proceeding
  • Authors:
    Redondi A, Buranapanichkit D, Cesana M, Tagliasacchi M, Andreopoulos Y
  • Publication date:
  • Pagination:
    150, 165
  • Journal:
    Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
  • Volume:
    8354 LNCS
  • Status:
  • Print ISSN:
Wireless visual sensor networks (VSNs) are expected to play a major role in future IEEE 802.15.4 personal area networks (PAN) under recently-established collision-free medium access control (MAC) protocols. In such environments, the trade-off between the number of camera sensors to deploy (spatial coverage) and the frame rate to use for each camera sensor (temporal coverage) plays a major role in the VSN energy consumption. In this paper, we address this aspect for single-hop VSNs, i.e. networks comprising independent and identical wireless visual sensor nodes connected to a collection node via a star topology. We derive analytic results for the energy-optimal spatio-temporal coverage parameters of such VSNs under a-priori known bounds for the minimum frame rate per sensor and the minimum and maximum possible number of nodes to deploy. Our results are parametric to the probability density function characterizing the data-production rate per node and the energy consumption parameters of the system of interest. Experimental results using TelosB motes under: a collision-free transmission protocol, the IEEE 802.15.4 PAN physical layer (CC2420 transceiver) and Monte-Carlo-generated data sets, reveal that our analytic results are within 7% of the energy consumption measurements for a wide range of settings. In addition, results obtained via a multimedia subsystem performing visual feature extraction in video frames show that the optimal spatio-temporal settings derived by the proposed framework allow for up to 48% of reduction of energy consumption in comparison to ad-hoc settings. As such, our analytic modeling is useful for early-stage studies of possible VSN deployments under collision-free MAC protocols prior to costly and time-consuming experiments in the field. © 2014 Springer International Publishing.
Publication data is maintained in RPS. Visit https://rps.ucl.ac.uk
 More search options
UCL Researchers
Dept of Electronic & Electrical Eng
University College London - Gower Street - London - WC1E 6BT Tel:+44 (0)20 7679 2000

© UCL 1999–2011

Search by