Abstract
We show that for any set of n moving points in Rd and any parameter 2 ≤ k ≤ n, one can select a fixed non-empty subset of the points of size O(k log k), such that the Voronoi diagram of this subset is "balanced" at any given time (i.e., it contains O(n/k) points per cell). We also show that the bound O(k log k) is near optimal even for the one dimensional case in which points move linearly in time. As an application, we show that one can assign communication radii to the sensors of a network of n moving sensors so that at any given time, their interference is O(√n log n). This is optimal up to an O(√log n) factor.
| Original language | English |
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| Title of host publication | 24th Annual European Symposium on Algorithms, ESA 2016, August 22-24, 2016, Aarhus, Denmark |
| Editors | P. Sankowski, C. Zaroliagis |
| Place of Publication | Dagstuhl |
| Publisher | Schloss Dagstuhl - Leibniz-Zentrum für Informatik |
| Number of pages | 11 |
| ISBN (Electronic) | 9783959770156 |
| DOIs | |
| Publication status | Published - 1 Aug 2016 |
| Externally published | Yes |
| Event | 24th Annual European Symposium on Algorithms (ESA 2016) - Aarhus, Denmark Duration: 22 Aug 2016 → 24 Aug 2016 Conference number: 24 http://conferences.au.dk/algo16/esa/ |
Publication series
| Name | Leibniz International Proceedings in Informatics (LIPIcs) |
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| Volume | 57 |
| ISSN (Print) | 1868-8969 |
Conference
| Conference | 24th Annual European Symposium on Algorithms (ESA 2016) |
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| Abbreviated title | ESA 2016 |
| Country/Territory | Denmark |
| City | Aarhus |
| Period | 22/08/16 → 24/08/16 |
| Internet address |
Funding
M. K. was supported in part by the ELC project (MEXT KAKENHI Nos. 12H00855 and 15H02665). S. S. was partially supported by Grant 1136/12 from the Israel Science Foundation and by the Swiss National Science Foundation Grants 200020144531 and 200021137574.
Keywords
- Facility location
- Interference minimization
- Moving points
- Range spaces
- Voronoi diagrams