A Cross-Layer Architecture for OFDMA-Based Cognitive Radio Network

Author

Peng, Yi ; Peng, Jie ; Zheng, Xiangquan ; Liu, Zengli ; Long, Hua

Author_Institution

Fac. of Inf. Eng. & Autom., Kunming Univ. of Sci. & Technol., Kunming, China

Volume

3

fYear

2009

fDate

19-21 May 2009

Firstpage

129

Lastpage

133

Abstract

In this paper, we discuss the framework of cognitive radio network and OFDMA technology first, and analysis the motivations for cross-layer design in cognitive radio network (CRN). Moreover, we proposed the OFDMA-based cognitive radio transceiver. Finally, a novel architecture in which the dynamic channel allocation is achieved by a cross-layer design between the PHY and MAC layers for OFDMA-based cognitive radio network is proposed. The optimization of joint power control and link scheduling on the cross-layer architecture of OFDMA-based CRN has been simulated. Simulation shows it can improve network performance.

Keywords

OFDM modulation; access protocols; channel allocation; cognitive radio; radio networks; transceivers; wireless channels; MAC layer; OFDMA-based CRN; cognitive radio network; cross-layer architecture; dynamic channel allocation; joint power control optimization; link scheduling optimization; medium access control; orthogonal frequency division multiple-access; radio transceiver; Automation; Channel allocation; Cognitive radio; Computer architecture; Cross layer design; Educational institutions; Interference; Physical layer; Software engineering; Transceivers; OFDMA; architecture; cognitive radio network; cross-layer design;

fLanguage

English

Publisher

ieee

Conference_Titel

Software Engineering, 2009. WCSE '09. WRI World Congress on

Conference_Location

Xiamen

Print_ISBN

978-0-7695-3570-8

Type

conf

DOI

10.1109/WCSE.2009.155

Filename

5319376