Cognitive full-duplex relay networks under the peak interference power constraint of multiple primary users

Xuan-Toan Doan, Nam-Phong Nguyen, Cheng Yin, Daniel B. da Costa, Trung Q. Duong

Research output: Contribution to journalArticle

15 Citations (Scopus)
254 Downloads (Pure)

Abstract

This paper investigates the outage performance of cognitive spectrum-sharing multi-relay networks in which the
relays operate in a full-duplex (FD) mode and employ the decode-and-forward (DF) protocol. Two relay selection
schemes, i.e., partial relay selection (PRS) and optimal relay selection (ORS), are considered to enhance the system
performance. New exact expressions for the outage probability (OP) in both schemes are derived based on which an
asymptotic analysis is carried out. The results show that the ORS strategy outperforms PRS in terms of OP, and
increasing the number of FD relays can significantly improve the system performance. Moreover, novel analytical
results provide additional insights for system design. In particular, from the viewpoint of FD concept, the primary
network parameters (i.e., peak interference at the primary receivers, number of primary receivers, and their locations)
should be carefully considered since they significantly affect the secondary network performance.
Original languageEnglish
Number of pages10
JournalEURASIP Journal On Wireless Communications and Networking
Volume2017
Issue number8
DOIs
Publication statusPublished - 05 Jan 2017

Fingerprint Dive into the research topics of 'Cognitive full-duplex relay networks under the peak interference power constraint of multiple primary users'. Together they form a unique fingerprint.

  • Cite this