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

doi:10.1186/s13638-016-0794-y

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

School of Electronics, Electrical Engineering and Computer Science

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

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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 language	English
Number of pages	10
Journal	EURASIP Journal On Wireless Communications and Networking
Volume	2017
Issue number	8
DOIs	https://doi.org/10.1186/s13638-016-0794-y
Publication status	Published - 05 Jan 2017

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Cognitive full-duplex relay networks under the peak interference power constraint of multiple primary users
© Doan et al. 2017 This article is distributed under the terms of the Creative Commons Attribution 4.0 International License(http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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Cite this

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abstract = "This paper investigates the outage performance of cognitive spectrum-sharing multi-relay networks in which therelays operate in a full-duplex (FD) mode and employ the decode-and-forward (DF) protocol. Two relay selectionschemes, i.e., partial relay selection (PRS) and optimal relay selection (ORS), are considered to enhance the systemperformance. New exact expressions for the outage probability (OP) in both schemes are derived based on which anasymptotic analysis is carried out. The results show that the ORS strategy outperforms PRS in terms of OP, andincreasing the number of FD relays can significantly improve the system performance. Moreover, novel analyticalresults provide additional insights for system design. In particular, from the viewpoint of FD concept, the primarynetwork 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.",

author = "Xuan-Toan Doan and Nam-Phong Nguyen and Cheng Yin and {da Costa}, {Daniel B.} and Duong, {Trung Q.}",

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AU - Doan, Xuan-Toan

AU - Nguyen, Nam-Phong

AU - Yin, Cheng

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AU - Duong, Trung Q.

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AB - This paper investigates the outage performance of cognitive spectrum-sharing multi-relay networks in which therelays operate in a full-duplex (FD) mode and employ the decode-and-forward (DF) protocol. Two relay selectionschemes, i.e., partial relay selection (PRS) and optimal relay selection (ORS), are considered to enhance the systemperformance. New exact expressions for the outage probability (OP) in both schemes are derived based on which anasymptotic analysis is carried out. The results show that the ORS strategy outperforms PRS in terms of OP, andincreasing the number of FD relays can significantly improve the system performance. Moreover, novel analyticalresults provide additional insights for system design. In particular, from the viewpoint of FD concept, the primarynetwork 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.

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

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