An Approximation Algorithm for Stochastic Power Cover Problem

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Theoretical Computer Science (NCTCS 2023)

Part of the book series: Communications in Computer and Information Science ((CCIS,volume 1944))

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Abstract

In this paper, we introduce the stochastic power cover (SPC) problem, which aims to determine the two-stage power assignment and minimize the total expected power consumption. For this problem, we are given a set U of n users, a set S of m sensors on the plane and k possible scenarios, where k is a polynomial and each consists of a probability of occurrence. Each sensor \(s\in S\) can adjust the power it produces by changing its radius and the relationship between them satisfies the following power equation \(p\left( s \right) =c\cdot r \left( s \right) ^{\alpha }\). The objective is to identify the radius of each sensor in the first stage and augment the first-stage solution in order to cover all users and minimize the expected power over both stages. Our main result is to present an O(\(\alpha \))-approximation algorithm by using the primal-dual technique.

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Correspondence to Menghan Cao .

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Cao, M. (2024). An Approximation Algorithm for Stochastic Power Cover Problem. In: Cai, Z., **ao, M., Zhang, J. (eds) Theoretical Computer Science. NCTCS 2023. Communications in Computer and Information Science, vol 1944. Springer, Singapore. https://doi.org/10.1007/978-981-99-7743-7_6

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  • DOI: https://doi.org/10.1007/978-981-99-7743-7_6

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  • Print ISBN: 978-981-99-7742-0

  • Online ISBN: 978-981-99-7743-7

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