Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: UAV Trajectory Optimization for Time Constrained Applications   Unmanned Aerial Vehicles (UAVs) are poised to revolutionize communications.
Utilizing their flexibility and fast deployment, we can deliver content in
congested areas or provide services in areas without infrastructure. In this
paper, we consider a UAV that flies over multiple locations and serves as many
users as possible within a given time duration. We study the problem of optimal
trajectory design, which we formulate as a mixed-integer linear program. For
large instances of the problem where the options for trajectories become
prohibitively many, we establish a connection to the orienteering problem, and
propose a corresponding greedy algorithm. Simulation results show that the
proposed algorithm is fast and yields solutions close to the optimal ones. The
proposed algorithm can be used for trajectory planning in strategic content
caching or tactical field operations.

24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th