Investigation on Dynamic Spectrum Allocation with Virtual Antenna Array Deployment in Decentralized Cognitive Radio System

Author

Chen, Yejian

Author_Institution

Bell Labs., Alcatel-Lucent Germany, Stuttgart, Germany

fYear

2011

fDate

15-18 May 2011

Firstpage

1

Lastpage

5

Abstract

As being a promising technique to allow the coexistence of independent wireless sub-systems and to improve the spectral efficiency, Decentralized Dynamic Spectrum Allocation (DDSA) within a Cognitive Radio (CR) system is recently intensively investigated. It is well known that the major challenges come from the decentralization of wireless subsystems, wireless channel monitoring and spectrum sensing. This paper presents three DDSA algorithms from the viewpoint of physical layer, by exploiting the Virtual Antenna Array (VAA) for the uplink transmission in a horizontal CR system. System level simulator is deployed to evaluate the DDSA algorithms.

Keywords

antenna arrays; cognitive radio; decentralized cognitive radio system; dynamic spectrum allocation; independent wireless subsystems; physical layer; spectral efficiency; spectrum sensing; system level simulator; uplink transmission; virtual antenna array deployment; wireless channel monitoring; Antenna arrays; Arrays; Cognitive radio; Interference; Resource management; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Spring), 2011 IEEE 73rd

Conference_Location

Budapest

ISSN

1550-2252

Print_ISBN

978-1-4244-8332-7

Type

conf

DOI

10.1109/VETECS.2011.5956249

Filename

5956249