Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: SlotSwapper: A Schedule Randomization protocol for Real-Time
  WirelessHART Networks   Industrial process control systems are time-critical systems where reliable
communications between sensors and actuators need to be guaranteed within
strict deadlines to maintain safe operation of all the components of the
system. WirelessHART is the most widely adopted standard which serve as the
medium of communication in industrial setups due to its support for Time
Division Multiple Access (TDMA)based communication, multiple channels, channel
hopping, centralized architecture, redundant routes and avoidance of spatial
re-use of channels. However, the communication schedule in WirelessHART network
is decided by a centralized network manager at the time of network
initialization and the same communication schedule repeats every hyper-period.
Due to predictability in the time slots of the communication schedule, these
systems are vulnerable to timing attacks which eventually can disrupt the
safety of the system. In this work, we present a moving target defense
mechanism, the SlotSwapper, which uses schedule randomization techniques to
randomize the time slots over a hyper-period schedule, while still preserving
all the feasibility constraints of a real-time WirelessHART network and makes
the schedule uncertain every hyper-period. We tested the feasibility of the
generated schedules on random topologies with 100 simulated motes in Cooja
simulator. We use schedule entropy to measure the confidentiality of our
algorithm in terms of randomness in the time slots of the generated schedules.

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The categories of this paper are: q-alg
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The categories of this paper are: mtrl-th
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The categories of this paper are: math-ph
2
The categories of this paper are: math
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The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
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The categories of this paper are: chem-ph
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The categories of this paper are: funct-an
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The categories of this paper are: q-fin
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The categories of this paper are: chao-dyn
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The categories of this paper are: comp-gas
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The categories of this paper are: ao-sci
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The categories of this paper are: nucl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: cond-mat