Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Signal-based self-organization of a chain of UAVs for subterranean
  exploration   Miniature multi-rotors are promising robots for navigating subterranean
networks, but maintaining a radio connection underground is challenging. In
this paper, we introduce a distributed algorithm, called U-Chain (for
Underground-chain), that coordinates a chain of flying robots between an
exploration drone and an operator. Our algorithm only uses the measurement of
the signal quality between two successive robots as well as an estimate of the
ground speed based on an optic flow sensor. We evaluate our approach formally
and in simulation, and we describe experimental results with a chain of 3 real
miniature quadrotors (12 by 12 cm) and a base station.

31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom