Name
Abstract | ||
|---|---|---|
Let P be a set of points in the plane, each equipped with a directional antenna that covers a sector of angle α and range r. In the symmetric model of communication, two antennas u and v can communicate to each other, if and only if v lies in u's coverage area and vice versa. In this paper, we introduce the concept of fault-tolerant spanners for directional antennas, which enables us to construct communication networks that retain their connectivity and spanning ratio even if a subset of antennas are removed from the network. We show how to orient the antennas with angle α and range r to obtain a k-fault-tolerant spanner for any positive integer k. For α≥π, we show that the range 13 for the antennas is sufficient to obtain a k-fault-tolerant 3-spanner. For π/2<α<π, we show that using range 6δ+19 for δ=⌈4/|cosα|⌉, one can direct antennas so that the induced communication graph is a k-fault-tolerant 7-spanner. |
Year | DOI | Venue |
|---|---|---|
2017 | 10.1016/j.tcs.2017.09.005 | Theoretical Computer Science |
Keywords | DocType | Volume |
Wireless network,Directional antenna,Fault-tolerance,Geometric spanner | Journal | 704 |
ISSN | Citations | PageRank |
0304-3975 | 1 | 0.35 |
References | Authors | |
10 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Mohammad Ali Abam | 1 | 78 | 14.65 |
| Fatemeh Baharifard | 2 | 1 | 0.35 |
| Mohammad Sadegh Borouny | 3 | 1 | 0.69 |
| Hamid Zarrabi-Zadeh | 4 | 111 | 13.63 |