An efficient switching threshold-based scheduling protocol for multiuser cognitive AF relay networks with primary users using orthogonal spectrums

Anas M. Salhab, Fawaz Al-Qahtani, Salam A. Zummo, Hussein Alnuweiri

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we propose and evaluate the performance of multiuser switched diversity (MUSwiD) cognitive amplify-and-forward (AF) relay networks with multiple primary receivers using orthogonal spectrums. Using orthogonal spectrum bands aims to mitigate the interference between users in wireless networks. The spectrum of primary receiver whose channel results in the best performance for the secondary system is shared with secondary users. To reduce the channel estimation load in the secondary cell, the MUSwiD selection scheme is used to select among secondary users. In this scheme, the user whose end-to-end (e2e) signal-to-noise ratio (SNR) satisfies a predetermined switching threshold is scheduled to receive data from the source instead of the best user. In the analysis, an upper bound on the e2e SNR of a user is used in deriving of analytical approximations of the outage probability and average symbol error probability (ASEP). The performance is also studied at the high SNR regime where the diversity order and coding gain are derived. The derived expressions are verified by Monte-Carlo simulations. Results illustrate that the diversity order of the studied MUSwiD cognitive AF relaying network is the same as its non-cognitive counterpart. Unlike the existing papers where the same spectrum band is assumed to be shared by the primary receivers, our findings demonstrate that increasing the number of primary receivers in the proposed scenario enhances the system performancevia improving the coding gain.

Original languageEnglish
Title of host publicationCognitive Radio Oriented Wireless Networks - 10th International Conference, CROWNCOM 2015, Revised Selected Papers
PublisherSpringer Verlag
Pages135-148
Number of pages14
Volume156
ISBN (Print)9783319245393
DOIs
Publication statusPublished - 2015
Event10th International Conference on Cognitive Radio Oriented Wireless Networks, CROWNCOM 2015 - Doha, Qatar
Duration: 21 Apr 201523 Apr 2015

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
Volume156
ISSN (Print)18678211

Other

Other10th International Conference on Cognitive Radio Oriented Wireless Networks, CROWNCOM 2015
CountryQatar
CityDoha
Period21/4/1523/4/15

Fingerprint

Signal to noise ratio
Scheduling
Network protocols
Channel estimation
Outages
Wireless networks
Monte Carlo simulation
Error probability

Keywords

  • Amplify-and-forward
  • Multiuser cognitive relay network
  • Orthogonal spectrums
  • Switching threshold

ASJC Scopus subject areas

  • Computer Networks and Communications

Cite this

Salhab, A. M., Al-Qahtani, F., Zummo, S. A., & Alnuweiri, H. (2015). An efficient switching threshold-based scheduling protocol for multiuser cognitive AF relay networks with primary users using orthogonal spectrums. In Cognitive Radio Oriented Wireless Networks - 10th International Conference, CROWNCOM 2015, Revised Selected Papers (Vol. 156, pp. 135-148). (Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST; Vol. 156). Springer Verlag. https://doi.org/10.1007/978-3-319-24540-9_11

An efficient switching threshold-based scheduling protocol for multiuser cognitive AF relay networks with primary users using orthogonal spectrums. / Salhab, Anas M.; Al-Qahtani, Fawaz; Zummo, Salam A.; Alnuweiri, Hussein.

Cognitive Radio Oriented Wireless Networks - 10th International Conference, CROWNCOM 2015, Revised Selected Papers. Vol. 156 Springer Verlag, 2015. p. 135-148 (Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST; Vol. 156).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Salhab, AM, Al-Qahtani, F, Zummo, SA & Alnuweiri, H 2015, An efficient switching threshold-based scheduling protocol for multiuser cognitive AF relay networks with primary users using orthogonal spectrums. in Cognitive Radio Oriented Wireless Networks - 10th International Conference, CROWNCOM 2015, Revised Selected Papers. vol. 156, Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST, vol. 156, Springer Verlag, pp. 135-148, 10th International Conference on Cognitive Radio Oriented Wireless Networks, CROWNCOM 2015, Doha, Qatar, 21/4/15. https://doi.org/10.1007/978-3-319-24540-9_11
Salhab AM, Al-Qahtani F, Zummo SA, Alnuweiri H. An efficient switching threshold-based scheduling protocol for multiuser cognitive AF relay networks with primary users using orthogonal spectrums. In Cognitive Radio Oriented Wireless Networks - 10th International Conference, CROWNCOM 2015, Revised Selected Papers. Vol. 156. Springer Verlag. 2015. p. 135-148. (Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST). https://doi.org/10.1007/978-3-319-24540-9_11
Salhab, Anas M. ; Al-Qahtani, Fawaz ; Zummo, Salam A. ; Alnuweiri, Hussein. / An efficient switching threshold-based scheduling protocol for multiuser cognitive AF relay networks with primary users using orthogonal spectrums. Cognitive Radio Oriented Wireless Networks - 10th International Conference, CROWNCOM 2015, Revised Selected Papers. Vol. 156 Springer Verlag, 2015. pp. 135-148 (Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST).
@inproceedings{d953b101f8f54012bd929510d24259b7,
title = "An efficient switching threshold-based scheduling protocol for multiuser cognitive AF relay networks with primary users using orthogonal spectrums",
abstract = "In this paper, we propose and evaluate the performance of multiuser switched diversity (MUSwiD) cognitive amplify-and-forward (AF) relay networks with multiple primary receivers using orthogonal spectrums. Using orthogonal spectrum bands aims to mitigate the interference between users in wireless networks. The spectrum of primary receiver whose channel results in the best performance for the secondary system is shared with secondary users. To reduce the channel estimation load in the secondary cell, the MUSwiD selection scheme is used to select among secondary users. In this scheme, the user whose end-to-end (e2e) signal-to-noise ratio (SNR) satisfies a predetermined switching threshold is scheduled to receive data from the source instead of the best user. In the analysis, an upper bound on the e2e SNR of a user is used in deriving of analytical approximations of the outage probability and average symbol error probability (ASEP). The performance is also studied at the high SNR regime where the diversity order and coding gain are derived. The derived expressions are verified by Monte-Carlo simulations. Results illustrate that the diversity order of the studied MUSwiD cognitive AF relaying network is the same as its non-cognitive counterpart. Unlike the existing papers where the same spectrum band is assumed to be shared by the primary receivers, our findings demonstrate that increasing the number of primary receivers in the proposed scenario enhances the system performancevia improving the coding gain.",
keywords = "Amplify-and-forward, Multiuser cognitive relay network, Orthogonal spectrums, Switching threshold",
author = "Salhab, {Anas M.} and Fawaz Al-Qahtani and Zummo, {Salam A.} and Hussein Alnuweiri",
year = "2015",
doi = "10.1007/978-3-319-24540-9_11",
language = "English",
isbn = "9783319245393",
volume = "156",
series = "Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST",
publisher = "Springer Verlag",
pages = "135--148",
booktitle = "Cognitive Radio Oriented Wireless Networks - 10th International Conference, CROWNCOM 2015, Revised Selected Papers",

}

TY - GEN

T1 - An efficient switching threshold-based scheduling protocol for multiuser cognitive AF relay networks with primary users using orthogonal spectrums

AU - Salhab, Anas M.

AU - Al-Qahtani, Fawaz

AU - Zummo, Salam A.

AU - Alnuweiri, Hussein

PY - 2015

Y1 - 2015

N2 - In this paper, we propose and evaluate the performance of multiuser switched diversity (MUSwiD) cognitive amplify-and-forward (AF) relay networks with multiple primary receivers using orthogonal spectrums. Using orthogonal spectrum bands aims to mitigate the interference between users in wireless networks. The spectrum of primary receiver whose channel results in the best performance for the secondary system is shared with secondary users. To reduce the channel estimation load in the secondary cell, the MUSwiD selection scheme is used to select among secondary users. In this scheme, the user whose end-to-end (e2e) signal-to-noise ratio (SNR) satisfies a predetermined switching threshold is scheduled to receive data from the source instead of the best user. In the analysis, an upper bound on the e2e SNR of a user is used in deriving of analytical approximations of the outage probability and average symbol error probability (ASEP). The performance is also studied at the high SNR regime where the diversity order and coding gain are derived. The derived expressions are verified by Monte-Carlo simulations. Results illustrate that the diversity order of the studied MUSwiD cognitive AF relaying network is the same as its non-cognitive counterpart. Unlike the existing papers where the same spectrum band is assumed to be shared by the primary receivers, our findings demonstrate that increasing the number of primary receivers in the proposed scenario enhances the system performancevia improving the coding gain.

AB - In this paper, we propose and evaluate the performance of multiuser switched diversity (MUSwiD) cognitive amplify-and-forward (AF) relay networks with multiple primary receivers using orthogonal spectrums. Using orthogonal spectrum bands aims to mitigate the interference between users in wireless networks. The spectrum of primary receiver whose channel results in the best performance for the secondary system is shared with secondary users. To reduce the channel estimation load in the secondary cell, the MUSwiD selection scheme is used to select among secondary users. In this scheme, the user whose end-to-end (e2e) signal-to-noise ratio (SNR) satisfies a predetermined switching threshold is scheduled to receive data from the source instead of the best user. In the analysis, an upper bound on the e2e SNR of a user is used in deriving of analytical approximations of the outage probability and average symbol error probability (ASEP). The performance is also studied at the high SNR regime where the diversity order and coding gain are derived. The derived expressions are verified by Monte-Carlo simulations. Results illustrate that the diversity order of the studied MUSwiD cognitive AF relaying network is the same as its non-cognitive counterpart. Unlike the existing papers where the same spectrum band is assumed to be shared by the primary receivers, our findings demonstrate that increasing the number of primary receivers in the proposed scenario enhances the system performancevia improving the coding gain.

KW - Amplify-and-forward

KW - Multiuser cognitive relay network

KW - Orthogonal spectrums

KW - Switching threshold

UR - http://www.scopus.com/inward/record.url?scp=84952672853&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84952672853&partnerID=8YFLogxK

U2 - 10.1007/978-3-319-24540-9_11

DO - 10.1007/978-3-319-24540-9_11

M3 - Conference contribution

SN - 9783319245393

VL - 156

T3 - Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST

SP - 135

EP - 148

BT - Cognitive Radio Oriented Wireless Networks - 10th International Conference, CROWNCOM 2015, Revised Selected Papers

PB - Springer Verlag

ER -