[1]LIANG Junbin,LIU Ming.Lifetime maximization for delay constraint connected target coverage[J].CAAI Transactions on Intelligent Systems,2013,8(4):319-326.[doi:10.3969/j.issn.1673-4785.201304030]
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CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
8
Number of periods:
2013 4
Page number:
319-326
Column:
学术论文—人工智能基础
Public date:
2013-08-25
- Title:
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Lifetime maximization for delay constraint connected target coverage
- Author(s):
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LIANG Junbin1; 2; LIU Ming2
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1.School of Computer and Electronic Information, Guangxi University, Nanning 530004, China; 2. School of Information Science and Engineering, Central South University, Changsha 410083, China
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- Keywords:
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wireless sensor networks; connected target coverage; lifetime maximization; delay constraint; energy efficiency
- CLC:
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TP393
- DOI:
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10.3969/j.issn.1673-4785.201304030
- Abstract:
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The issue of guarantying the QoS (target coverage, network connectivity, etc.), and simultaneously maximizing the lifetime in wireless sensor network is a hot topic, yet difficult subject of study. In some delay-sensitive sensor networks, sensors must transmit data to sink-node within a limited time in order to monitor the critical physical environment (fires, explosions, etc.). To study connected target coverage in such delay-sensitive sensor networks, we propose to examine the delay-constraint connected target coverage (DCCTC) problem. The study, specifically, includes of: 1) modelling DCCTC problem as a Height Limited Maximum Cover Tree (HLMCT) problem and proving it is NP-complete 2) developping a fast heuristic algorithm, named HLCWGC(height-limited communication weighted greedy cover) to solve the HLMCT problem. Simulation results and theoretical researches show that HLCWGC algorithm is better than the existing algorithms in the delay-constraint sensor networks.