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Telecom, Volume 2, Issue 1

March 2021 - 9 articles

Cover Story: FSO links are part of modern ultra-fast networks, due to the high reliability, performance and security they can provide. However, the atmospheric conditions affect their characteristics and this influence is investigated experimentally through a terrestrial horizontal FSO link that is installed a few meters above the sea. An accurate empirical model for the attenuation coefficient estimation of the optical wireless links, as function of the atmospheric temperature, relative humidity and wind speed, is developed. Such models can be used for the designing of FSO links as parts of the upcoming 5G/5G+/6G networks, for areas with known atmospheric conditions behaviour. View this paper
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Articles (9)

  • Article
  • Open Access
7 Citations
4,074 Views
14 Pages

18 March 2021

Heterogeneous Vehicular Network (HetVNET) is a highly dynamic type of network that changes very quickly. Regarding this feature of HetVNETs and the emerging notion of network slicing in 5G technology, we propose a hybrid intelligent Software-Defined...

  • Feature Paper
  • Review
  • Open Access
33 Citations
7,717 Views
33 Pages

12 March 2021

It had been predicted that by 2020, nearly 26 billion devices would be connected to the Internet, with a big percentage being vehicles. The Internet of Vehicles (IoVa) is a concept that refers to the connection and cooperation of smart vehicles and d...

  • Feature Paper
  • Article
  • Open Access
10 Citations
3,823 Views
15 Pages

Experimental Model Development for the Attenuation Coefficient Estimation of Terrestrial Optical Wireless Links over the Sea

  • Argyris N. Stassinakis,
  • George A. Papavgeris,
  • Hector E. Nistazakis,
  • Andreas D. Tsigopoulos,
  • Nikolaos A. Androutsos and
  • George S. Tombras

1 March 2021

Free space optical (FSO) systems have become a reliable solution for modern communications networks, due to the high performance, availability, reliability and security they can provide. However, their characteristics depend strongly on the condition...

  • Feature Paper
  • Article
  • Open Access
31 Citations
12,484 Views
23 Pages

Towards Climate Smart Farming—A Reference Architecture for Integrated Farming Systems

  • Georgios Kakamoukas,
  • Panagiotis Sarigiannidis,
  • Andreas Maropoulos,
  • Thomas Lagkas,
  • Konstantinos Zaralis and
  • Chrysoula Karaiskou

9 February 2021

Climate change is emerging as a major threat to farming, food security and the livelihoods of millions of people across the world. Agriculture is strongly affected by climate change due to increasing temperatures, water shortage, heavy rainfall and v...

  • Feature Paper
  • Review
  • Open Access
14 Citations
5,251 Views
18 Pages

9 February 2021

Vehicular Named Data Networking (VNDN) is a revolutionary information-centric architecture specifically conceived for vehicular networks and characterized by name-based forwarding and in-network caching. So far, a variety of caching schemes have been...

  • Feature Paper
  • Article
  • Open Access
4 Citations
5,588 Views
10 Pages

Design and Analysis of Slotted Waveguide Antenna Radiating in a “Plasma-Shaped” Cavity of an ECR Ion Source

  • Giorgio Sebastiano Mauro,
  • Giuseppe Torrisi,
  • Ornella Leonardi,
  • Angelo Pidatella,
  • Gino Sorbello and
  • David Mascali

8 February 2021

The design of a microwave antenna sustaining a high-energy-content plasma in Electron Cyclotron Resonance Ion Sources (ECRISs) is, under many aspects, similar to the design of a conventional antenna but presenting also peculiarities because of the an...

  • Article
  • Open Access
3,592 Views
14 Pages

28 January 2021

In this paper, a link of fixed capacity is considered that services calls from different service-classes. Calls arrive in the link according to a Poisson process, have an initial (peak) bandwidth requirement while their service time is exponentially...

  • Article
  • Open Access
23 Citations
10,215 Views
26 Pages

V2X Communication over Cellular Networks: Capabilities and Challenges

  • Athanasios Kanavos,
  • Dimitrios Fragkos and
  • Alexandros Kaloxylos

13 January 2021

Vehicular communications is expected to be one of the key applications for cellular networks during the following decades. Key international organizations have already described in detail a number of related use cases, along with their requirements....

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Telecom - ISSN 2673-4001