Maximum lifetime connected coverage with two active-phase sensors

Hongwei Du (), Panos Pardalos (), Weili Wu () and Lidong Wu ()

Journal of Global Optimization, 2013, vol. 56, issue 2, 559-568

Abstract: A sensor with two active phrases means that active mode has two phases, the full-active phase and the semi-active phase, which require different energy consumptions. A full-active sensor can sense data packets, transmit, receive, and relay the data packets. A semi-active sensor cannot sense data packets, but it can transmit, receive, and relay data packets. Given a set of targets and a set of sensors with two active phrases, find a sleep/active schedule of sensors to maximize the time period during which active sensors form a connected coverage set. In this paper, this problem is showed to have polynomial-time $${(7.875+\varepsilon)}$$ -approximations for any $${\varepsilon >0 }$$ when all targets and sensors lie in the Euclidean plane and all sensors have the same sensing radius R s and the same communication radius R c with R c ≥ 2R s . Copyright Springer Science+Business Media, LLC. 2013

Keywords: Maximum lifetime; Coverage; Wireless sensor network (search for similar items in EconPapers)
Date: 2013
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Citations: View citations in EconPapers (2)

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DOI: 10.1007/s10898-012-9871-x

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