Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optimizing Information Freshness in Computing enabled IoT Networks   Internet of Things (IoT) has emerged as one of the key features of the next
generation wireless networks, where timely delivery of status update packets is
essential for many real-time IoT applications. To provide users with
context-aware services and lighten the transmission burden, the raw data
usually needs to be preprocessed before being transmitted to the destination.
However, the effect of computing on the overall information freshness is not
well understood. In this work, we first develop an analytical framework to
investigate the information freshness, in terms of peak age of information
(PAoI), of a computing enabled IoT system with multiple sensors. Specifically,
we model the procedure of computing and transmission as a tandem queue, and
derive the analytical expressions of the average PAoI for different sensors.
Based on the theoretical results, we formulate a min-max optimization problem
to minimize the maximum average PAoI of different sensors. We further design a
derivative-free algorithm to find the optimal updating frequency, with which
the complexity for checking the convexity of the formulated problem or
obtaining the derivatives of the object function can be largely reduced. The
accuracy of our analysis and effectiveness of the proposed algorithm are
verified with extensive simulation results.

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The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th