• Türkçe
    • English
  • English 
    • Türkçe
    • English
  • Login
View Item 
  •   [email protected]
  • Araştırma Çıktıları | TR-Dizin | WoS | Scopus | PubMed
  • Scopus İndeksli Yayınlar Koleksiyonu
  • View Item
  •   [email protected]
  • Araştırma Çıktıları | TR-Dizin | WoS | Scopus | PubMed
  • Scopus İndeksli Yayınlar Koleksiyonu
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

On the performance of subcarrier allocation techniques for multiuser OFDM cognitive networks with reconfigurable antennas

Thumbnail

View/Open

Tam Metin / Full Text (270.0Kb)

Access

info:eu-repo/semantics/embargoedAccess

Date

2014

Author

Yılmaz, Mustafa Harun
Abdallah, Mohamed M.
Qaraqe, Khalid A.
Arslan, Hüseyin

Metadata

Show full item record

Citation

Yılmaz, M. H., Abdallah, M. M., Qaraqe, K. A. ve Arslan, H. (2014). On the performance of subcarrier allocation techniques for multiuser OFDM cognitive networks with reconfigurable antennas. IEEE Global Communications Conference (GLOBECOM) içinde (1059-1064. ss.). Austin, TX, Dec 08-12, 2014. https://dx.doi.org/10.1109/GLOCOM.2014.7036949

Abstract

Reconfigurable antennas (RA) have been viewed as a hardware-efficient alternative solution to multiple-input multiple-output systems whereby network users can vary the antenna radiation patterns using a single antenna element to maximize the received signal strength. In this paper, we study the potential benefits of employing RA in multiuser orthogonal frequency division multiple access cognitive heterogeneous networks (Het-Nets) in terms of the overall network capacity. In cognitive HetNets, a secondary (unlicensed) network is allowed to share the spectrum with the primary (licensed) network under the condition that the interference level at the primary network is below a predetermined value. To account for this interference constraint, the secondary user (SU) can limit their transmission power and thus reducing substantially its performance. Moreover, the large number of users expected for next generation network brings dense interference to the secondary network and thus even efficient interference mitigation and resource allocation techniques can fail in maintaining the required performance level. Therefore, in this paper, we consider utilizing an RA at the SUs that acts as an additional resource which can be optimized by selecting the best state that maximizes the signal strength among the SUs and limits the mutual interference between the secondary and primary network. In particular, we propose a game theoretical framework for selecting the subcarriers based on best allocation techniques as well as the random antenna state selection that maximizes the overall capacity of the network while obeying the interference level in the primary network. We use potential games which guarantee the Nash equilibrium existence. Our results show that by selecting the optimal RA state and the subcarriers for each user, the capacity of the secondary network increases substitutionally with limited hardware complexity.

Source

IEEE Global Communications Conference (GLOBECOM)

URI

https://hdl.handle.net/20.500.12511/1488
https://dx.doi.org/10.1109/GLOCOM.2014.7036949

Collections

  • Bildiri Koleksiyonu [188]
  • Scopus İndeksli Yayınlar Koleksiyonu [5488]
  • WoS İndeksli Yayınlar Koleksiyonu [5676]



DSpace software copyright © 2002-2015  DuraSpace
Contact Us | Send Feedback
Theme by 
@mire NV
 

 




| Guide | Contact |

[email protected]

by OpenAIRE
Advanced Search

sherpa/romeo

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsInstitution AuthorORCIDTitlesSubjectsTypeLanguageDepartmentCategoryWoS Q ValueScopus Q ValuePublisherAccess TypeThis CollectionBy Issue DateAuthorsInstitution AuthorORCIDTitlesSubjectsTypeLanguageDepartmentCategoryWoS Q ValueScopus Q ValuePublisherAccess Type

My Account

LoginRegister

Statistics

View Google Analytics Statistics

DSpace software copyright © 2002-2015  DuraSpace
Contact Us | Send Feedback
Theme by 
@mire NV
 

 


|| Guide || Library || İstanbul Medipol University || OAI-PMH ||

Kütüphane ve Dokümantasyon Daire Başkanlığı, İstabul, Turkey
If you find any errors in content, please contact: [email protected]

Creative Commons License
[email protected] by İstanbul Medipol University Institutional Repository is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 Unported License..

[email protected]:


DSpace 6.2

tarafından İdeal DSpace hizmetleri çerçevesinde özelleştirilerek kurulmuştur.