Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Security in Energy Harvesting Networks: A Survey of Current Solutions
  and Research Challenges   The recent advancements in hardware miniaturization capabilities have boosted
the diffusion of systems based on Energy Harvesting (EH) technologies, as a
means to power embedded wireless devices in a sustainable and low-cost fashion.
Despite the undeniable management advantages, the intermittent availability of
the energy source and the limited power supply has led to challenging system
trade-offs, resulting in an increased attack surface and a general relaxation
of the available security services.
  In this paper, we survey the security issues, applications, techniques, and
challenges arising in wireless networks powered via EH technologies. We explore
the vulnerabilities of EH networks, and we provide a comprehensive overview of
the scientific literature, including attack vectors, cryptography techniques,
physical-layer security schemes for data secrecy, and additional physical-layer
countermeasures. For each of the identified macro-areas, we compare the
scientific contributions across a range of shared features, indicating the pros
and cons of the described techniques, the research challenges, and a few future
directions. Finally, we also provide an overview of the emerging topics in the
area, such as Non-Orthogonal Multiple Access (NOMA) and Rate-Splitting Multiple
Access (RSMA) schemes, and Intelligent Reconfigurable Surfaces, that could
trigger the interest of industry and academia and unleash the full potential of
pervasive EH wireless networks.

11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th