Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Wireless for Control: Over-the-Air Controller   In closed-loop wireless control systems, the state-of-the-art approach
prescribes that a controller receives by wireless communications the individual
sensor measurements, and then sends the computed control signal to the
actuators. We propose an over-the-air controller scheme where all sensors
attached to the plant simultaneously transmit scaled sensing signals directly
to the actuator; then the feedback control signal is computed partially over
the air and partially by a scaling operation at the actuator. Such over-the-air
controller essentially adopts the over-the-air computation concept to compute
the control signal for closed-loop wireless control systems. In contrast to the
state-of-the-art sensor-to-controller and controller-to-actuator communication
approach, the over-the-air controller exploits the superposition properties of
multiple-access wireless channels to complete the communication and computation
of a large number of sensing signals in a single communication resource unit.
Therefore, the proposed scheme can obtain significant benefits in terms of low
actuation delay and low wireless resource utilization by a simple network
architecture that does not require a dedicated controller. Numerical results
show that our proposed over-the-air controller achieves a huge widening of the
stability region in terms of sampling time and delay, and a significant
reduction of the computation error of the control signal.

15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
9
The categories of this paper are: nlin