Reconfiguring Software Defined Radio platform for Dynamic Spectrum Access

Author

Sarijari, M. Adib ; Rashid, Rozeha A. ; Fisal, N. ; Latiff, N.M.A. ; Yusof, S.K.S. ; Rashid, K. M. Khairul

Author_Institution

Fac. of Electr. Eng., Univ. Teknol. Malaysia, Skudai, Malaysia

fYear

2011

fDate

12-14 Dec. 2011

Firstpage

103

Lastpage

106

Abstract

Traditional static spectrum allocation policy has resulted in current day spectrum scarcity and inefficient spectrum utilization. Dynamic Spectrum Access (DSA) technique allows cognitive (unlicensed) user (CU) to opportunistically transmit in a primary (licensed) user (PU) frequency band for a given time if it does not detect any ongoing operations. In this work, CU is implemented on Software Defined Radio (SDR) platform consisting of GNU Radio and USRP. This platform is then reconfigured for DSA based on Cognitive Radio (CR) technology which features include abilities to sense, learn, adapt and react according to the environment. The proposed design of the DSA based CR system consists of four main functional blocks: spectrum sensing, spectrum management, spectrum decision and data transmission. In this paper, we address the implementation of DSA based CR on IEEE802.15.4 standard. The result shows a significant improvement in term of Packet Reception Rate (PRR) for CU with DSA based CR system compared to the system without DSA capability.

Keywords

cognitive radio; radio access networks; software radio; cognitive user; data transmission; dynamic spectrum access; packet reception rate; software defined radio platform; spectrum decision; spectrum management; spectrum sensing; static spectrum allocation policy; Cognitive radio; Copper; Data communication; Radio spectrum management; Sensors; Software radio; Synchronization; Cognitive Radio; Dynamic Spectrum Access; Software Defined Radio; spectrum management and spectrum decision; spectrum sensing;

fLanguage

English

Publisher

ieee

Conference_Titel

RF and Microwave Conference (RFM), 2011 IEEE International

Conference_Location

Seremban, Negeri Sembilan

Print_ISBN

978-1-4577-1628-7

Type

conf

DOI

10.1109/RFM.2011.6168706

Filename

6168706