Abstract
We establish tight bounds for beacon-based coverage problems. In particular, we show that $\lfloor \frac{n}{6} \rfloor$ beacons are always sufficient and sometimes necessary to cover a simple rectilinear polygon P with n vertices. When P is monotone and rectilinear, we prove that this bound becomes $\lfloor \frac{n+4}{8} \rfloor$ . We also present an optimal linear-time algorithm for computing the beacon kernel of P.
Original language | English (US) |
---|---|
Title of host publication | LATIN 2016: Theoretical Informatics |
Publisher | Springer Nature |
Pages | 110-122 |
Number of pages | 13 |
ISBN (Print) | 9783662495285 |
DOIs | |
State | Published - Mar 22 2016 |
Bibliographical note
KAUST Repository Item: Exported on 2020-10-01Acknowledgements: Work by S.W.Bae was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (2013R1A1A1A05006927) and by the Ministry of Education (2015R1D1A1A01057220). Work by C.-S. Shin was supported by Research Grant of Hankuk University of Foreign Studies. Work by A. Vigneron was supported by KAUST base funding