Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Balancing Age-Energy Tradeoff in Sleep-Wake Server Systems   The surging demand for fresh information from various Internet of Things
(IoT) applications requires oceans of data to be transmitted and processed
timely. How to guarantee information freshness while reducing energy
consumption thus becomes imperative. We consider a multi-source single-server
queueing system, where we aim to design the optimal sleep-wake strategy for the
server to reduce its energy consumption while guaranteeing users' information
freshness. We propose a sleep-wake strategy that relies on an idling scheme
called Conditional Sleep (CS) scheme. We show that the proposed CS scheme can
achieve a smaller Age of Information (AoI) than the widely-used Hysteresis Time
(HT) scheme and Bernoulli Sleep (BS) scheme, while retaining the same power
consumption and Peak Age of Information (PAoI). Moreover, we find that
increasing the sleep period length can always reduce energy consumption and
enlarge the PAoI, but it does not always increase AoI. We also find that using
PAoI as the information freshness metric in designing the optimal sleep-wake
strategies would make the server sleep infinitely long. Our analysis reveals
that this result is due to the PAoI being a first-order statistic. We further
extend our discussion to the scenario where data sources choose sampling rates
strategically based on the sleep-wake strategy of the server. We show that
increasing the sleeping period length for the server while guaranteeing users'
PAoI could lead to a minor reduction of the server's energy consumption but
significantly increase the data sources' sampling costs.

18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th