Skip to main content
main-content
Top

Hint

Swipe to navigate through the articles of this issue

27-02-2018 | Issue 4/2019

Wireless Networks 4/2019

Optimal throughput performance in full-duplex relay assisted cognitive networks

Journal:
Wireless Networks > Issue 4/2019
Authors:
M. Emre Ozfatura, Sherif ElAzzouni, Ozgur Ercetin, Tamer ElBatt
Important notes
Sherif ElAzzouni: This work was done when Sherif ElAzzouni was with WINC, Nile University, Egypt.
Tamer ElBatt: This work was done when Tamer ElBatt was with WINC, Nile University, Egypt.

Abstract

In this paper, we study a full-duplex cooperative cognitive radio network with multiple full-duplex secondary users acting as potential relays for transmitting the packets of a primary user. In addition to having full-duplex capability, the receivers also have multi-packet reception capability allowing them to simultaneously decode packets incoming from different senders. Our objective is to maximize the sum throughput of the secondary users while stabilizing the primary and relay queues. Towards this objective, we characterize the optimal scheduling of primary and relay packets at the full-duplex secondary users. The resulting problem is non-convex, and thus, we transform it into a linear fractional problem by using the dominant system approach. This, in turn, facilitates an efficient numerical solution by the bisection method. We analyze the effects of different network parameters on the optimal solution numerically for a number of possible scenarios. Our numerical results demonstrate how the multi-packet reception and full-duplex capabilities, as well as the partial relaying and number of secondary users affect the primary and secondary users’ stable throughput revealing new insights into the performance of overlay cognitive networks. In particular, we demonstrate that full-duplex capability of secondary users together with multi-packet reception capability of the primary destination is the key in reaping the benefits of full-duplex cooperative cognitive communications.

Please log in to get access to this content

To get access to this content you need the following product:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 69.000 Bücher
  • über 500 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Umwelt
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Testen Sie jetzt 30 Tage kostenlos.

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 50.000 Bücher
  • über 380 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Umwelt
  • Maschinenbau + Werkstoffe




Testen Sie jetzt 30 Tage kostenlos.

Springer Professional "Wirtschaft"

Online-Abonnement

Mit Springer Professional "Wirtschaft" erhalten Sie Zugriff auf:

  • über 58.000 Bücher
  • über 300 Zeitschriften

aus folgenden Fachgebieten:

  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Versicherung + Risiko




Testen Sie jetzt 30 Tage kostenlos.

Literature
About this article

Other articles of this Issue 4/2019

Wireless Networks 4/2019 Go to the issue