Abstract
Barrier coverage is a hot issue in wireless sensor networks. Most literatures study barrier coverage under one-hop wireless sensor networks. In this paper, we consider more practical environment: multi-hop wireless sensor networks. We study the problem of how to achieve interference-free k-barrier coverage which has not been discussed before. Firstly, we analyze how k-barrier coverage suffers from interference in multi-hop networks. Then we propose an effective algorithm to solve the problem which is called computing maximal k-connected barriers without interference. In this algorithm, we construct none-crossing k-barrier coverage firstly and then we construct a communication interference graph to compute a maximal k-connected barriers without interference. Simulations show our algorithm can prolong the network lifetime of k-barrier coverage and is more effective than the existing method.
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Acknowledgment
This work was financially supported by National Natural Science Foundation of China with Grants No. 61370216 and No. 61100191, and Shenzhen Strategic Emerging Industries Program with Grants No. ZDSY20120613125016389, No. JCYJ20120613151201451 and No. JCYJ20130329153215152.
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Du, H., Luo, H., Zhang, J., Zhu, R., Ye, Q. (2014). Interference-Free k-barrier Coverage in Wireless Sensor Networks. In: Zhang, Z., Wu, L., Xu, W., Du, DZ. (eds) Combinatorial Optimization and Applications. COCOA 2014. Lecture Notes in Computer Science(), vol 8881. Springer, Cham. https://doi.org/10.1007/978-3-319-12691-3_14
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DOI: https://doi.org/10.1007/978-3-319-12691-3_14
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