Abstract
In this paper a conflict-free data aggregation problem, known as a Convergecast Scheduling Problem, is considered. It is NP-hard in the arbitrary wireless network. The paper deals with a special case of the problem when the communication graph is a square grid with unit cells and when the transmission range is 2 (in \(L_1\) metric). Earlier for the case under consideration we proposed a polynomial time algorithm with a guaranteed accuracy bound. In this paper we have shown that the proposed algorithm constructs an optimal solution to the problem.
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Acknowledgments
This work was supported by RFBR (grant 16-07-00552) and the Ministry of Education and Science of the Republic of Kazakhstan (project No. 0115PK00550).
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Erzin, A. (2017). Solution of the Convergecast Scheduling Problem on a Square Unit Grid When the Transmission Range is 2. In: Battiti, R., Kvasov, D., Sergeyev, Y. (eds) Learning and Intelligent Optimization. LION 2017. Lecture Notes in Computer Science(), vol 10556. Springer, Cham. https://doi.org/10.1007/978-3-319-69404-7_4
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DOI: https://doi.org/10.1007/978-3-319-69404-7_4
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