Collaborative beamforming for spectrum-sharing two-way selective relay networks under co-channel interferences

Ali Afana, Ali Ghrayeb, Vahid Asghari, Sofiéne Affes

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

1 Citation (Scopus)

Abstract

In this paper, we consider collaborative beamforming for spectrum-sharing two-way relay networks in an effort to improve the performance of the cognitive system and enhance the spectrum efficiency. In such a joint relaying/spectrum- sharing setting, a pair of secondary transceivers communicates via a set of secondary decode-and-forward (DF) relays in the presence of multiple primary transceivers. Among the available relays, only those that receive the signals reliably participate in the cooperative beamforming process to nullify the interference inflicted on primary receivers. Furthermore, the received signals at relays and at secondary transceivers are unavoidably interfered by the signals from primary transmitters. To study the performance of the cognitive system under the effects of these co-channel interferences (CCIs) from the primary transmitters, we derive closed-form expressions for the outage probability and bit error rate (BER) over independent and identically distributed (i.i.d.) Rayleigh fading channels. Numerical results demonstrate the effectiveness of beamforming in compensating the cognitive system performance loss due to the CCIs in addition to mitigating the interference to the primary users.

Original languageEnglish
Title of host publication2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013
Pages549-553
Number of pages5
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013 - London, United Kingdom
Duration: 8 Sep 201311 Sep 2013

Other

Other2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013
CountryUnited Kingdom
CityLondon
Period8/9/1311/9/13

Fingerprint

Cognitive systems
Telecommunication repeaters
Beamforming
Transceivers
Transmitters
Rayleigh fading
Outages
Fading channels
Bit error rate

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Afana, A., Ghrayeb, A., Asghari, V., & Affes, S. (2013). Collaborative beamforming for spectrum-sharing two-way selective relay networks under co-channel interferences. In 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013 (pp. 549-553). [6666197] https://doi.org/10.1109/PIMRC.2013.6666197

Collaborative beamforming for spectrum-sharing two-way selective relay networks under co-channel interferences. / Afana, Ali; Ghrayeb, Ali; Asghari, Vahid; Affes, Sofiéne.

2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013. 2013. p. 549-553 6666197.

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

Afana, A, Ghrayeb, A, Asghari, V & Affes, S 2013, Collaborative beamforming for spectrum-sharing two-way selective relay networks under co-channel interferences. in 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013., 6666197, pp. 549-553, 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013, London, United Kingdom, 8/9/13. https://doi.org/10.1109/PIMRC.2013.6666197
Afana A, Ghrayeb A, Asghari V, Affes S. Collaborative beamforming for spectrum-sharing two-way selective relay networks under co-channel interferences. In 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013. 2013. p. 549-553. 6666197 https://doi.org/10.1109/PIMRC.2013.6666197
Afana, Ali ; Ghrayeb, Ali ; Asghari, Vahid ; Affes, Sofiéne. / Collaborative beamforming for spectrum-sharing two-way selective relay networks under co-channel interferences. 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013. 2013. pp. 549-553
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