Cognitive Cooperation for the Downlink of ...
Document type :
Communication dans un congrès avec actes
Title :
Cognitive Cooperation for the Downlink of Frequency Reuse Small Cells
Author(s) :
Akoum, Salam [Auteur correspondant]
Department of Electrical and Computer Engineering - University of Texas [ECE]
Chaire Radio Flexible Alcatel-Lucent/Supélec [Chaire Radio Flexible]
Zwingelstein, Marie [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Heath, Jr., Robert [Auteur]
Department of Electrical and Computer Engineering - University of Texas [ECE]
Debbah, Merouane [Auteur]
Supélec Sciences des Systèmes [E3S]
Department of Electrical and Computer Engineering - University of Texas [ECE]
Chaire Radio Flexible Alcatel-Lucent/Supélec [Chaire Radio Flexible]
Zwingelstein, Marie [Auteur]

Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Heath, Jr., Robert [Auteur]
Department of Electrical and Computer Engineering - University of Texas [ECE]
Debbah, Merouane [Auteur]
Supélec Sciences des Systèmes [E3S]
Conference title :
The 2nd International Workshop on Cognitive Information Processing
Country :
Italie
Start date of the conference :
2011-01-14
Book title :
Cognitive Cooperation for the Downlink of Frequency Reuse Small Cells
Publication date :
2010-06-16
HAL domain(s) :
Informatique [cs]/Réseaux et télécommunications [cs.NI]
English abstract : [en]
We develop and analyze a space time coded cooperative diversity protocol that achieves improved quality of service for mobile users in the downlink of small cells. The protocol, called cooperative frequency reuse (CFR), ...
Show more >We develop and analyze a space time coded cooperative diversity protocol that achieves improved quality of service for mobile users in the downlink of small cells. The protocol, called cooperative frequency reuse (CFR), leverages the cellular frequency reuse concept to create space and frequency diversity among pairs of adjacent base stations. The CFR protocol, which is consistent with the half-duplex mode assumption, consists of two phases. During the first phase, each base station transmits symbols to it own user on its dedicated frequency band, while listening to the symbols intended to the users of the other base station on another frequency band. Cognitive cooperation is implemented in the second phase. Each base station transmits on the two frequency bands to the scheduled users in both base stations, by means of an appropriately chosen space time code. We construct a full rate distributed space time code, based on the Golden code, for cooperation between the two adjacent base stations. We discuss the performance of the proposed protocol in terms of bit error rate and probability of outage. Simulation results show that the proposed CFR protocol yields considerable improvement over traditional direct transmission frequency reuse strategies.Show less >
Show more >We develop and analyze a space time coded cooperative diversity protocol that achieves improved quality of service for mobile users in the downlink of small cells. The protocol, called cooperative frequency reuse (CFR), leverages the cellular frequency reuse concept to create space and frequency diversity among pairs of adjacent base stations. The CFR protocol, which is consistent with the half-duplex mode assumption, consists of two phases. During the first phase, each base station transmits symbols to it own user on its dedicated frequency band, while listening to the symbols intended to the users of the other base station on another frequency band. Cognitive cooperation is implemented in the second phase. Each base station transmits on the two frequency bands to the scheduled users in both base stations, by means of an appropriately chosen space time code. We construct a full rate distributed space time code, based on the Golden code, for cooperation between the two adjacent base stations. We discuss the performance of the proposed protocol in terms of bit error rate and probability of outage. Simulation results show that the proposed CFR protocol yields considerable improvement over traditional direct transmission frequency reuse strategies.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Source :