On the interference suppression capabilities of cognitive enabled femto cellular networks

Handle URI:
http://hdl.handle.net/10754/564562
Title:
On the interference suppression capabilities of cognitive enabled femto cellular networks
Authors:
Shakir, Muhammad; Atat, Rachad; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
Cognitive Radios are considered as a standard part of future Heterogeneous mobile network architecture. In this paper, we consider a two tier Heterogeneous network with multiple radio access technologies (RATS) namely; (i) the secondary network which comprises of cognitive enabled femto base stations which are referred to as cognitive-femto BS (CFBS) such that each of the BS are equipped with a single antenna and (ii) the macrocell network which is considered as a primary network. The effectiveness of the cognitive transmission is based on the efficient spectrum sensing algorithms which determine the availability of the spectrum holes. However, it is equally important for the cognitive network to minimize the cross-tier interference particularly during (i) the spectrum sensing and (ii) the cognitive transmission if spectrum is available. By exploiting the cooperation among the CFBS, the multiple CFBS can be considered as a single base station with multiple geographically dispersed antennas. In this context, we proposed a smart network where CFBS collaborates to reduce the cross-tier interference level by directing the main beam toward the desired femtocell mobile user and creating toward the cross-tier interference. The resultant network is referred to as Smart cognitive-femto network (SCFN) which requires the CFBS to be self-aware such that the CFBS are aware of their surroundings and adapt accordingly to maintain a reliable and efficient communication link. In order to determine the effectiveness of the proposed smart network, we study the interference rejection (or suppression) capabilities of the SCFN. It has been shown that the proposed smart network offers significant performance improvements in interference suppression and signal to interference ratio (SIR) and may be considered as a promising solution to the interference management problems in Heterogeneous network. © 2012 IEEE.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program; Communication Theory Lab
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2012 International Conference on Communications and Information Technology (ICCIT)
Conference/Event name:
2012 International Conference on Communications and Information Technology, ICCIT 2012
Issue Date:
Jun-2012
DOI:
10.1109/ICCITechnol.2012.6285835
Type:
Conference Paper
ISSN:
17924316
ISBN:
9781467319508
Appears in Collections:
Conference Papers; Physical Sciences and Engineering (PSE) Division; Electrical Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorShakir, Muhammaden
dc.contributor.authorAtat, Rachaden
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2015-08-04T07:04:02Zen
dc.date.available2015-08-04T07:04:02Zen
dc.date.issued2012-06en
dc.identifier.isbn9781467319508en
dc.identifier.issn17924316en
dc.identifier.doi10.1109/ICCITechnol.2012.6285835en
dc.identifier.urihttp://hdl.handle.net/10754/564562en
dc.description.abstractCognitive Radios are considered as a standard part of future Heterogeneous mobile network architecture. In this paper, we consider a two tier Heterogeneous network with multiple radio access technologies (RATS) namely; (i) the secondary network which comprises of cognitive enabled femto base stations which are referred to as cognitive-femto BS (CFBS) such that each of the BS are equipped with a single antenna and (ii) the macrocell network which is considered as a primary network. The effectiveness of the cognitive transmission is based on the efficient spectrum sensing algorithms which determine the availability of the spectrum holes. However, it is equally important for the cognitive network to minimize the cross-tier interference particularly during (i) the spectrum sensing and (ii) the cognitive transmission if spectrum is available. By exploiting the cooperation among the CFBS, the multiple CFBS can be considered as a single base station with multiple geographically dispersed antennas. In this context, we proposed a smart network where CFBS collaborates to reduce the cross-tier interference level by directing the main beam toward the desired femtocell mobile user and creating toward the cross-tier interference. The resultant network is referred to as Smart cognitive-femto network (SCFN) which requires the CFBS to be self-aware such that the CFBS are aware of their surroundings and adapt accordingly to maintain a reliable and efficient communication link. In order to determine the effectiveness of the proposed smart network, we study the interference rejection (or suppression) capabilities of the SCFN. It has been shown that the proposed smart network offers significant performance improvements in interference suppression and signal to interference ratio (SIR) and may be considered as a promising solution to the interference management problems in Heterogeneous network. © 2012 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectCognitive-femto base stationsen
dc.subjectcross-tier interferenceen
dc.subjectHeterogeneous networken
dc.subjectinterference suppression capabilityen
dc.subjectmultiple radio access technologies (RATs)en
dc.subjectsignal to interference ratio (SIR)en
dc.subjecttriangular antenna arrayen
dc.titleOn the interference suppression capabilities of cognitive enabled femto cellular networksen
dc.typeConference Paperen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journal2012 International Conference on Communications and Information Technology (ICCIT)en
dc.conference.date26 June 2012 through 28 June 2012en
dc.conference.name2012 International Conference on Communications and Information Technology, ICCIT 2012en
dc.conference.locationHammameten
kaust.authorShakir, Muhammaden
kaust.authorAtat, Rachaden
kaust.authorAlouini, Mohamed-Slimen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.