Full-Duplex Communication in Cognitive Radio Networks: A Survey

Muhammad Amjad, Fayaz Akhtar, Mubashir Husain Rehmani, Martin Reisslein, Tariq Umer

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

Wireless networks with their ubiquitous applications have become an indispensable part of our daily lives. Wireless networks demand more and more spectral resources to support the ever increasing numbers of users. According to network engineers, the current spectrum crunch can be addressed with the introduction of cognitive radio networks (CRNs). In half-duplex (HD) CRNs, the secondary users (SUs) can either only sense the spectrum or transmit at a given time. This HD operation limits the SU throughput because the SUs cannot transmit during the spectrum sensing. However, with the advances in self-interference suppression (SIS), full-duplex (FD) CRNs allow for simultaneous spectrum sensing and transmission on a given channel. This FD operation increases the throughput and reduces collisions as compared to HD-CRNs. In this paper, we present a comprehensive survey of FD-CRN communications. We cover the supporting network architectures and the various transmit and receive antenna designs. We classify the different SIS approaches in FD-CRNs. We survey the spectrum sensing approaches, and security requirements for FD-CRNs. We also survey major advances in full-duplex medium access protocol (FD-MAC) protocols as well as open issues, challenges, and future research directions to support the FD operation in CRNs.

Original languageEnglish (US)
JournalIEEE Communications Surveys and Tutorials
DOIs
StateAccepted/In press - Jun 22 2017

Fingerprint

Cognitive radio
Communication
Interference suppression
Wireless networks
Throughput
Network protocols
Network architecture
Telecommunication networks
Antennas
Engineers

Keywords

  • Antennas
  • Cognitive radio
  • Cognitive radio network (CRN)
  • full-duplex (FD) communication
  • self-interference suppression (SIS).
  • Sensors
  • Silicon
  • spectrum sensing
  • White spaces
  • Wireless sensor networks

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Full-Duplex Communication in Cognitive Radio Networks : A Survey. / Amjad, Muhammad; Akhtar, Fayaz; Rehmani, Mubashir Husain; Reisslein, Martin; Umer, Tariq.

In: IEEE Communications Surveys and Tutorials, 22.06.2017.

Research output: Contribution to journalArticle

Amjad, Muhammad ; Akhtar, Fayaz ; Rehmani, Mubashir Husain ; Reisslein, Martin ; Umer, Tariq. / Full-Duplex Communication in Cognitive Radio Networks : A Survey. In: IEEE Communications Surveys and Tutorials. 2017.
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