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Energy-efficient barrier coverage in bistatic radar sensor networks
Wang R.; He S.; Chen J.; Shi Z.; Hou F.
2015-09-09
Source PublicationIEEE International Conference on Communications
Volume2015-September
Pages6743-6748
AbstractBy taking advantage of active radio waves, radar sensors can provide high-accuracy target detection over traditional passive sensors. In this paper, we study barrier coverage in bistatic radar sensor networks (BRSNs), which consist of a set of transmitter radars and receiver radars. Barrier coverage in BRSNs is much more difficult than that in traditional sensor networks as the sensing area of a bistatic radar depends on the positions of both transmitter and receiver, and is typically a Cassini oval. Moreover, different transmitters and receivers can pair with each other by choosing the same frequency and thus the sensing network topology can be quite different in different time slots. To tackle this challenge, we first investigate the characteristic of the ε-covered area of a bistatic radar, then we represent a bistatic radar with a virtual point at the middle point of the line segment formed by the transmitter and receiver. With these representations, we formulate the barrier coverage problem in BRSNs as (k, ε)-Minimum Weight Barrier Coverage Problem ((k, ε)-MWBCP). By constructing a directed coverage graph, we transform the (k, ε)-MWBCP into finding k node-disjoint shortest paths and propose an energy-efficient algorithm called (k, ε)-MWBCA to solve the problem within polynomial time. Extensive simulations are conducted to demonstrate the performance of our proposed algorithm.
DOI10.1109/ICC.2015.7249400
URLView the original
Language英語
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Document TypeConference paper
CollectionUniversity of Macau
AffiliationZhejiang University
Recommended Citation
GB/T 7714
Wang R.,He S.,Chen J.,et al. Energy-efficient barrier coverage in bistatic radar sensor networks[C],2015:6743-6748.
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