Polarization Spectrum Sensing Scheme for Cognitive Radios

Author

Liu, Fangfang ; Feng, Chunyan ; Guo, Caili ; Wang, Yue ; Wei, Dong

Author_Institution

Next Generation Commun. Syst. Theor. & Technol. Lab., Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2009

fDate

24-26 Sept. 2009

Firstpage

1

Lastpage

4

Abstract

Cognitive radios are proposed for secondary users (SU) recovering spectrum holes unused by primary users (PU) in time and space domain. However, the polarization domain of spectrum, allowing simultaneous frequency usage at overlapped areas, is unexploited adequately. In this paper, a novel polarization spectrum holes sensing scheme is proposed for cognitive radios, which exploits transmit and receive polarizations taking into account the interference constraint of PU and the signal to interference noise ratio (SINR) demands of SU. The scheme enables novel spectral sharing opportunities between PU and SU, thereby improving the spectrum utilization efficiency of the wireless communication networks. The scheme is evaluated based on the principle of virtual polarization adaptation, and it has been concluded that the scheme is feasible.

Keywords

cognitive radio; cognitive radios; polarization spectrum sensing scheme; primary users; secondary users; signal to interference noise ratio; space domain; time domain; virtual polarization adaptation; wireless communication networks; Cognitive radio; Communication systems; Frequency; Interference; Polarization; RF signals; Receiving antennas; Signal to noise ratio; Space technology; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-3692-7

Electronic_ISBN

978-1-4244-3693-4

Type

conf

DOI

10.1109/WICOM.2009.5301939

Filename

5301939