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Telecom, Volume 1, Issue 2

September 2020 - 5 articles

Cover Story: A novel user pairing scheme is proposed so as to improve the performance of integrated satellite–terrestrial NOMA networks comprising of multiple ground users by enabling cooperative D2D communication among them. The objective is to identify the pairs of users that can benefit from the terrestrial cooperation combined with satellite NOMA. Power allocation for NOMA considers the achieved rates through OMA and guarantees that user pairing leads to higher rates for each pair and an overall rate increase. The impact of various system parameters has been evaluated, and guidelines are given to improve satellite–terrestrial cooperation and spectral efficiency, compared to standalone NOMA and OMA. View this paper
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Articles (5)

  • Feature Paper
  • Article
  • Open Access
5 Citations
4,362 Views
24 Pages

7 September 2020

The currently deployed terrestrial wireless networks experience difficulties while coping with the massive connectivity demands of coexisting users and devices. The addition of satellite segments has been proposed as a viable way of providing improve...

  • Feature Paper
  • Article
  • Open Access
22 Citations
5,036 Views
12 Pages

Feature Importances: A Tool to Explain Radio Propagation and Reduce Model Complexity

  • Sotirios P. Sotiroudis,
  • Sotirios K. Goudos and
  • Katherine Siakavara

21 August 2020

Machine learning models have been widely deployed to tackle the problem of radio propagation. In addition to helping in the estimation of path loss, they can also be used to better understand the details of various propagation scenarios. Our current...

  • Feature Paper
  • Article
  • Open Access
4 Citations
3,205 Views
18 Pages

Differential Evolution in Waveform Design for Wireless Power Transfer

  • Pavlos Doanis,
  • Achilles D. Boursianis,
  • Julien Huillery,
  • Arnaud Bréard,
  • Yvan Duroc and
  • Sotirios K. Goudos

4 August 2020

The technique of transmitting multi-tone signals in a radiative Wireless Power Transfer (WPT) system can significantly increase its end-to-end power efficiency. The optimization problem in this system is to tune the transmission according to the rece...

  • Feature Paper
  • Article
  • Open Access
11 Citations
5,732 Views
16 Pages

Hybrid Multi-Antenna Techniques for V2X Communications—Prototyping and Experimentation

  • Konstantinos Maliatsos,
  • Leonidas Marantis,
  • Petros S. Bithas and
  • Athanasios G. Kanatas

7 July 2020

The support of the connected vehicle-to-everything (V2X) vision in conjunction with intelligent transportation system applications and services constitute a major 5G objective for modern radio systems and networks. More particularly, 5G deployment wi...

  • Feature Paper
  • Article
  • Open Access
26 Citations
5,633 Views
12 Pages

6 July 2020

In this paper, we describe a LoRa (from “Long Range”)-based, linear sensor network we have developed for transmitting location information of personnel and equipment in an underground mine. The system is intended to be used during emergencies when ex...

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Telecom - ISSN 2673-4001